[164] | 1 | /* asn.c
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| 2 | *
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| 3 | * Copyright (C) 2006-2015 wolfSSL Inc.
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| 4 | *
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| 5 | * This file is part of wolfSSL. (formerly known as CyaSSL)
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| 6 | *
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| 7 | * wolfSSL is free software; you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation; either version 2 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * wolfSSL is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with this program; if not, write to the Free Software
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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| 20 | */
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| 21 |
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| 22 | #ifdef HAVE_CONFIG_H
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| 23 | #include <config.h>
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| 24 | #endif
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| 25 |
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| 26 | #include <wolfssl/wolfcrypt/settings.h>
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| 27 |
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| 28 | #ifndef NO_ASN
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| 29 |
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| 30 | #ifdef HAVE_RTP_SYS
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| 31 | #include "os.h" /* dc_rtc_api needs */
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| 32 | #include "dc_rtc_api.h" /* to get current time */
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| 33 | #endif
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| 34 |
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| 35 | #include <wolfssl/wolfcrypt/asn.h>
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| 36 | #include <wolfssl/wolfcrypt/coding.h>
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| 37 | //#include <wolfssl/wolfcrypt/md2.h>
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| 38 | #include <wolfssl/wolfcrypt/hmac.h>
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| 39 | #include <wolfssl/wolfcrypt/error-crypt.h>
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| 40 | #include <wolfssl/wolfcrypt/pwdbased.h>
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| 41 | #include <wolfssl/wolfcrypt/des3.h>
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| 42 | #include <wolfssl/wolfcrypt/logging.h>
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| 43 |
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| 44 | #include <wolfssl/wolfcrypt/random.h>
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| 45 | #include <wolfssl/wolfcrypt/hash.h>
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| 46 |
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| 47 |
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| 48 | #ifndef NO_RC4
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| 49 | #include <wolfssl/wolfcrypt/arc4.h>
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| 50 | #endif
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| 51 |
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| 52 | #ifdef HAVE_NTRU
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| 53 | #include "libntruencrypt/ntru_crypto.h"
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| 54 | #endif
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| 55 |
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| 56 | #if defined(WOLFSSL_SHA512) || defined(WOLFSSL_SHA384)
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| 57 | #include <wolfssl/wolfcrypt/sha512.h>
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| 58 | #endif
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| 59 |
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| 60 | #ifndef NO_SHA256
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| 61 | #include <wolfssl/wolfcrypt/sha256.h>
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| 62 | #endif
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| 63 |
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| 64 | #ifdef HAVE_ECC
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| 65 | #include <wolfssl/wolfcrypt/ecc.h>
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| 66 | #endif
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| 67 |
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| 68 | #ifdef WOLFSSL_DEBUG_ENCODING
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| 69 | #if defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
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| 70 | #if MQX_USE_IO_OLD
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| 71 | #include <fio.h>
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| 72 | #else
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| 73 | #include <nio.h>
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| 74 | #endif
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| 75 | #else
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| 76 | #include <stdio.h>
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| 77 | #endif
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| 78 | #endif
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| 79 |
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| 80 | #ifdef _MSC_VER
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| 81 | /* 4996 warning to use MS extensions e.g., strcpy_s instead of XSTRNCPY */
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| 82 | #pragma warning(disable: 4996)
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| 83 | #endif
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| 84 |
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| 85 |
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| 86 | #ifndef TRUE
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| 87 | #define TRUE 1
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| 88 | #endif
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| 89 | #ifndef FALSE
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| 90 | #define FALSE 0
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| 91 | #endif
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| 92 |
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| 93 |
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| 94 | #ifdef HAVE_RTP_SYS
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| 95 | /* uses parital <time.h> structures */
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| 96 | #define XTIME(tl) (0)
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| 97 | #define XGMTIME(c, t) my_gmtime((c))
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| 98 | #define XVALIDATE_DATE(d, f, t) ValidateDate((d), (f), (t))
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| 99 | #elif defined(MICRIUM)
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| 100 | #if (NET_SECURE_MGR_CFG_EN == DEF_ENABLED)
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| 101 | #define XVALIDATE_DATE(d,f,t) NetSecure_ValidateDateHandler((d),(f),(t))
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| 102 | #else
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| 103 | #define XVALIDATE_DATE(d, f, t) (0)
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| 104 | #endif
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| 105 | #define NO_TIME_H
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| 106 | /* since Micrium not defining XTIME or XGMTIME, CERT_GEN not available */
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| 107 | #elif defined(MICROCHIP_TCPIP_V5) || defined(MICROCHIP_TCPIP)
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| 108 | #include <time.h>
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| 109 | #define XTIME(t1) pic32_time((t1))
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| 110 | #define XGMTIME(c, t) gmtime((c))
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| 111 | #define XVALIDATE_DATE(d, f, t) ValidateDate((d), (f), (t))
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| 112 | #elif defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
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| 113 | #define XTIME(t1) mqx_time((t1))
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| 114 | #define XGMTIME(c, t) mqx_gmtime((c), (t))
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| 115 | #define XVALIDATE_DATE(d, f, t) ValidateDate((d), (f), (t))
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| 116 | #elif defined(FREESCALE_KSDK_BM)
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| 117 | #include <time.h>
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| 118 | #define XTIME(t1) ksdk_time((t1))
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| 119 | #define XGMTIME(c, t) gmtime((c))
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| 120 | #define XVALIDATE_DATE(d, f, t) ValidateDate((d), (f), (t))
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| 121 |
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| 122 | #elif defined(USER_TIME)
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| 123 | /* user time, and gmtime compatible functions, there is a gmtime
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| 124 | implementation here that WINCE uses, so really just need some ticks
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| 125 | since the EPOCH
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| 126 | */
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| 127 |
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| 128 | struct tm {
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| 129 | int tm_sec; /* seconds after the minute [0-60] */
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| 130 | int tm_min; /* minutes after the hour [0-59] */
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| 131 | int tm_hour; /* hours since midnight [0-23] */
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| 132 | int tm_mday; /* day of the month [1-31] */
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| 133 | int tm_mon; /* months since January [0-11] */
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| 134 | int tm_year; /* years since 1900 */
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| 135 | int tm_wday; /* days since Sunday [0-6] */
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| 136 | int tm_yday; /* days since January 1 [0-365] */
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| 137 | int tm_isdst; /* Daylight Savings Time flag */
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| 138 | long tm_gmtoff; /* offset from CUT in seconds */
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| 139 | char *tm_zone; /* timezone abbreviation */
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| 140 | };
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| 141 | typedef long time_t;
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| 142 |
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| 143 | /* forward declaration */
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| 144 | struct tm* gmtime(const time_t* timer);
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| 145 | extern time_t XTIME(time_t * timer);
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| 146 |
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| 147 | #define XGMTIME(c, t) gmtime((c))
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| 148 | #define XVALIDATE_DATE(d, f, t) ValidateDate((d), (f), (t))
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| 149 |
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| 150 | #ifdef STACK_TRAP
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| 151 | /* for stack trap tracking, don't call os gmtime on OS X/linux,
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| 152 | uses a lot of stack spce */
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| 153 | extern time_t time(time_t * timer);
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| 154 | #define XTIME(tl) time((tl))
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| 155 | #endif /* STACK_TRAP */
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| 156 |
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| 157 | #elif defined(TIME_OVERRIDES)
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| 158 | /* user would like to override time() and gmtime() functionality */
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| 159 |
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| 160 | #ifndef HAVE_TIME_T_TYPE
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| 161 | typedef long time_t;
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| 162 | #endif
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| 163 | extern time_t XTIME(time_t * timer);
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| 164 |
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| 165 | #ifndef HAVE_TM_TYPE
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| 166 | struct tm {
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| 167 | int tm_sec; /* seconds after the minute [0-60] */
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| 168 | int tm_min; /* minutes after the hour [0-59] */
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| 169 | int tm_hour; /* hours since midnight [0-23] */
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| 170 | int tm_mday; /* day of the month [1-31] */
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| 171 | int tm_mon; /* months since January [0-11] */
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| 172 | int tm_year; /* years since 1900 */
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| 173 | int tm_wday; /* days since Sunday [0-6] */
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| 174 | int tm_yday; /* days since January 1 [0-365] */
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| 175 | int tm_isdst; /* Daylight Savings Time flag */
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| 176 | long tm_gmtoff; /* offset from CUT in seconds */
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| 177 | char *tm_zone; /* timezone abbreviation */
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| 178 | };
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| 179 | #endif
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| 180 | extern struct tm* XGMTIME(const time_t* timer, struct tm* tmp);
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| 181 |
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| 182 | #ifndef HAVE_VALIDATE_DATE
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| 183 | #define XVALIDATE_DATE(d, f, t) ValidateDate((d), (f), (t))
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| 184 | #endif
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| 185 |
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| 186 | #elif defined(IDIRECT_DEV_TIME)
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| 187 | /*Gets the timestamp from cloak software owned by VT iDirect
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| 188 | in place of time() from <time.h> */
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| 189 | #include <time.h>
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| 190 | #define XTIME(t1) idirect_time((t1))
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| 191 | #define XGMTIME(c) gmtime((c))
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| 192 | #define XVALIDATE_DATE(d, f, t) ValidateDate((d), (f), (t))
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| 193 |
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| 194 | #else
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| 195 | /* default */
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| 196 | /* uses complete <time.h> facility */
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| 197 | #include <time.h>
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| 198 | #define XTIME(tl) time((tl))
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| 199 | #define XGMTIME(c, t) gmtime((c))
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| 200 | #define XVALIDATE_DATE(d, f, t) ValidateDate((d), (f), (t))
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| 201 | #endif
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| 202 |
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| 203 |
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| 204 | #ifdef _WIN32_WCE
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| 205 | /* no time() or gmtime() even though in time.h header?? */
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| 206 |
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| 207 | #include <windows.h>
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| 208 |
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| 209 |
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| 210 | time_t time(time_t* timer)
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| 211 | {
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| 212 | SYSTEMTIME sysTime;
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| 213 | FILETIME fTime;
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| 214 | ULARGE_INTEGER intTime;
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| 215 | time_t localTime;
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| 216 |
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| 217 | if (timer == NULL)
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| 218 | timer = &localTime;
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| 219 |
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| 220 | GetSystemTime(&sysTime);
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| 221 | SystemTimeToFileTime(&sysTime, &fTime);
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| 222 |
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| 223 | XMEMCPY(&intTime, &fTime, sizeof(FILETIME));
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| 224 | /* subtract EPOCH */
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| 225 | intTime.QuadPart -= 0x19db1ded53e8000;
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| 226 | /* to secs */
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| 227 | intTime.QuadPart /= 10000000;
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| 228 | *timer = (time_t)intTime.QuadPart;
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| 229 |
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| 230 | return *timer;
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| 231 | }
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| 232 |
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| 233 | #endif /* _WIN32_WCE */
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| 234 | #if defined( _WIN32_WCE ) || defined( USER_TIME )
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| 235 |
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| 236 | struct tm* gmtime(const time_t* timer)
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| 237 | {
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| 238 | #define YEAR0 1900
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| 239 | #define EPOCH_YEAR 1970
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| 240 | #define SECS_DAY (24L * 60L * 60L)
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| 241 | #define LEAPYEAR(year) (!((year) % 4) && (((year) % 100) || !((year) %400)))
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| 242 | #define YEARSIZE(year) (LEAPYEAR(year) ? 366 : 365)
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| 243 |
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| 244 | static const int _ytab[2][12] =
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| 245 | {
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| 246 | {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
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| 247 | {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
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| 248 | };
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| 249 |
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| 250 | static struct tm st_time;
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| 251 | struct tm* ret = &st_time;
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| 252 | time_t secs = *timer;
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| 253 | unsigned long dayclock, dayno;
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| 254 | int year = EPOCH_YEAR;
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| 255 |
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| 256 | dayclock = (unsigned long)secs % SECS_DAY;
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| 257 | dayno = (unsigned long)secs / SECS_DAY;
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| 258 |
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| 259 | ret->tm_sec = (int) dayclock % 60;
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| 260 | ret->tm_min = (int)(dayclock % 3600) / 60;
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| 261 | ret->tm_hour = (int) dayclock / 3600;
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| 262 | ret->tm_wday = (int) (dayno + 4) % 7; /* day 0 a Thursday */
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| 263 |
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| 264 | while(dayno >= (unsigned long)YEARSIZE(year)) {
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| 265 | dayno -= YEARSIZE(year);
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| 266 | year++;
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| 267 | }
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| 268 |
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| 269 | ret->tm_year = year - YEAR0;
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| 270 | ret->tm_yday = (int)dayno;
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| 271 | ret->tm_mon = 0;
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| 272 |
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| 273 | while(dayno >= (unsigned long)_ytab[LEAPYEAR(year)][ret->tm_mon]) {
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| 274 | dayno -= _ytab[LEAPYEAR(year)][ret->tm_mon];
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| 275 | ret->tm_mon++;
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| 276 | }
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| 277 |
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| 278 | ret->tm_mday = (int)++dayno;
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| 279 | ret->tm_isdst = 0;
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| 280 |
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| 281 | return ret;
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| 282 | }
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| 283 |
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| 284 | #endif /* _WIN32_WCE || USER_TIME */
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| 285 |
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| 286 |
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| 287 | #ifdef HAVE_RTP_SYS
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| 288 |
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| 289 | #define YEAR0 1900
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| 290 |
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| 291 | struct tm* my_gmtime(const time_t* timer) /* has a gmtime() but hangs */
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| 292 | {
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| 293 | static struct tm st_time;
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| 294 | struct tm* ret = &st_time;
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| 295 |
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| 296 | DC_RTC_CALENDAR cal;
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| 297 | dc_rtc_time_get(&cal, TRUE);
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| 298 |
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| 299 | ret->tm_year = cal.year - YEAR0; /* gm starts at 1900 */
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| 300 | ret->tm_mon = cal.month - 1; /* gm starts at 0 */
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| 301 | ret->tm_mday = cal.day;
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| 302 | ret->tm_hour = cal.hour;
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| 303 | ret->tm_min = cal.minute;
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| 304 | ret->tm_sec = cal.second;
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| 305 |
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| 306 | return ret;
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| 307 | }
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| 308 |
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| 309 | #endif /* HAVE_RTP_SYS */
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| 310 |
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| 311 |
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| 312 | #if defined(MICROCHIP_TCPIP_V5) || defined(MICROCHIP_TCPIP)
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| 313 |
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| 314 | /*
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| 315 | * time() is just a stub in Microchip libraries. We need our own
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| 316 | * implementation. Use SNTP client to get seconds since epoch.
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| 317 | */
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| 318 | time_t pic32_time(time_t* timer)
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| 319 | {
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| 320 | #ifdef MICROCHIP_TCPIP_V5
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| 321 | DWORD sec = 0;
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| 322 | #else
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| 323 | uint32_t sec = 0;
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| 324 | #endif
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| 325 | time_t localTime;
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| 326 |
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| 327 | if (timer == NULL)
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| 328 | timer = &localTime;
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| 329 |
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| 330 | #ifdef MICROCHIP_MPLAB_HARMONY
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| 331 | sec = TCPIP_SNTP_UTCSecondsGet();
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| 332 | #else
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| 333 | sec = SNTPGetUTCSeconds();
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| 334 | #endif
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| 335 | *timer = (time_t) sec;
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| 336 |
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| 337 | return *timer;
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| 338 | }
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| 339 |
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| 340 | #endif /* MICROCHIP_TCPIP */
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| 341 |
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| 342 |
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| 343 | #if defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
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| 344 |
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| 345 | time_t mqx_time(time_t* timer)
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| 346 | {
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| 347 | time_t localTime;
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| 348 | TIME_STRUCT time_s;
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| 349 |
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| 350 | if (timer == NULL)
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| 351 | timer = &localTime;
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| 352 |
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| 353 | _time_get(&time_s);
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| 354 | *timer = (time_t) time_s.SECONDS;
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| 355 |
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| 356 | return *timer;
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| 357 | }
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| 358 |
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| 359 | /* CodeWarrior GCC toolchain only has gmtime_r(), no gmtime() */
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| 360 | struct tm* mqx_gmtime(const time_t* clock, struct tm* tmpTime)
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| 361 | {
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| 362 | return gmtime_r(clock, tmpTime);
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| 363 | }
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| 364 |
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| 365 | #endif /* FREESCALE_MQX */
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| 366 |
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| 367 | #ifdef FREESCALE_KSDK_BM
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| 368 |
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| 369 | /* setting for PIT timer */
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| 370 | #define PIT_INSTANCE 0
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| 371 | #define PIT_CHANNEL 0
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| 372 |
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| 373 | #include "fsl_pit_driver.h"
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| 374 |
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| 375 | time_t ksdk_time(time_t* timer)
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| 376 | {
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| 377 | time_t localTime;
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| 378 |
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| 379 | if (timer == NULL)
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| 380 | timer = &localTime;
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| 381 |
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| 382 | *timer = (PIT_DRV_ReadTimerUs(PIT_INSTANCE, PIT_CHANNEL)) / 1000000;
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| 383 | return *timer;
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| 384 | }
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| 385 |
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| 386 | #endif /* FREESCALE_KSDK_BM */
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| 387 |
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| 388 | #ifdef WOLFSSL_TIRTOS
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| 389 |
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| 390 | time_t XTIME(time_t * timer)
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| 391 | {
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| 392 | time_t sec = 0;
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| 393 |
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| 394 | sec = (time_t) Seconds_get();
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| 395 |
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| 396 | if (timer != NULL)
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| 397 | *timer = sec;
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| 398 |
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| 399 | return sec;
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| 400 | }
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| 401 |
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| 402 | #endif /* WOLFSSL_TIRTOS */
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| 403 |
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| 404 | static INLINE word32 btoi(byte b)
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| 405 | {
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| 406 | return b - 0x30;
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| 407 | }
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| 408 |
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| 409 |
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| 410 | /* two byte date/time, add to value */
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| 411 | static INLINE void GetTime(int* value, const byte* date, int* idx)
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| 412 | {
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| 413 | int i = *idx;
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| 414 |
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| 415 | *value += btoi(date[i++]) * 10;
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| 416 | *value += btoi(date[i++]);
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| 417 |
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| 418 | *idx = i;
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| 419 | }
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| 420 |
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| 421 |
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| 422 | #if defined(MICRIUM)
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| 423 |
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| 424 | CPU_INT32S NetSecure_ValidateDateHandler(CPU_INT08U *date, CPU_INT08U format,
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| 425 | CPU_INT08U dateType)
|
---|
| 426 | {
|
---|
| 427 | CPU_BOOLEAN rtn_code;
|
---|
| 428 | CPU_INT32S i;
|
---|
| 429 | CPU_INT32S val;
|
---|
| 430 | CPU_INT16U year;
|
---|
| 431 | CPU_INT08U month;
|
---|
| 432 | CPU_INT16U day;
|
---|
| 433 | CPU_INT08U hour;
|
---|
| 434 | CPU_INT08U min;
|
---|
| 435 | CPU_INT08U sec;
|
---|
| 436 |
|
---|
| 437 | i = 0;
|
---|
| 438 | year = 0u;
|
---|
| 439 |
|
---|
| 440 | if (format == ASN_UTC_TIME) {
|
---|
| 441 | if (btoi(date[0]) >= 5)
|
---|
| 442 | year = 1900;
|
---|
| 443 | else
|
---|
| 444 | year = 2000;
|
---|
| 445 | }
|
---|
| 446 | else { /* format == GENERALIZED_TIME */
|
---|
| 447 | year += btoi(date[i++]) * 1000;
|
---|
| 448 | year += btoi(date[i++]) * 100;
|
---|
| 449 | }
|
---|
| 450 |
|
---|
| 451 | val = year;
|
---|
| 452 | GetTime(&val, date, &i);
|
---|
| 453 | year = (CPU_INT16U)val;
|
---|
| 454 |
|
---|
| 455 | val = 0;
|
---|
| 456 | GetTime(&val, date, &i);
|
---|
| 457 | month = (CPU_INT08U)val;
|
---|
| 458 |
|
---|
| 459 | val = 0;
|
---|
| 460 | GetTime(&val, date, &i);
|
---|
| 461 | day = (CPU_INT16U)val;
|
---|
| 462 |
|
---|
| 463 | val = 0;
|
---|
| 464 | GetTime(&val, date, &i);
|
---|
| 465 | hour = (CPU_INT08U)val;
|
---|
| 466 |
|
---|
| 467 | val = 0;
|
---|
| 468 | GetTime(&val, date, &i);
|
---|
| 469 | min = (CPU_INT08U)val;
|
---|
| 470 |
|
---|
| 471 | val = 0;
|
---|
| 472 | GetTime(&val, date, &i);
|
---|
| 473 | sec = (CPU_INT08U)val;
|
---|
| 474 |
|
---|
| 475 | return NetSecure_ValidateDate(year, month, day, hour, min, sec, dateType);
|
---|
| 476 | }
|
---|
| 477 |
|
---|
| 478 | #endif /* MICRIUM */
|
---|
| 479 |
|
---|
| 480 | #if defined(IDIRECT_DEV_TIME)
|
---|
| 481 |
|
---|
| 482 | extern time_t getTimestamp();
|
---|
| 483 |
|
---|
| 484 | time_t idirect_time(time_t * timer)
|
---|
| 485 | {
|
---|
| 486 | time_t sec = getTimestamp();
|
---|
| 487 |
|
---|
| 488 | if (timer != NULL)
|
---|
| 489 | *timer = sec;
|
---|
| 490 |
|
---|
| 491 | return sec;
|
---|
| 492 | }
|
---|
| 493 |
|
---|
| 494 | #endif
|
---|
| 495 |
|
---|
| 496 |
|
---|
| 497 | WOLFSSL_LOCAL int GetLength(const byte* input, word32* inOutIdx, int* len,
|
---|
| 498 | word32 maxIdx)
|
---|
| 499 | {
|
---|
| 500 | int length = 0;
|
---|
| 501 | word32 i = *inOutIdx;
|
---|
| 502 | byte b;
|
---|
| 503 |
|
---|
| 504 | *len = 0; /* default length */
|
---|
| 505 |
|
---|
| 506 | if ( (i+1) > maxIdx) { /* for first read */
|
---|
| 507 | WOLFSSL_MSG("GetLength bad index on input");
|
---|
| 508 | return BUFFER_E;
|
---|
| 509 | }
|
---|
| 510 |
|
---|
| 511 | b = input[i++];
|
---|
| 512 | if (b >= ASN_LONG_LENGTH) {
|
---|
| 513 | word32 bytes = b & 0x7F;
|
---|
| 514 |
|
---|
| 515 | if ( (i+bytes) > maxIdx) { /* for reading bytes */
|
---|
| 516 | WOLFSSL_MSG("GetLength bad long length");
|
---|
| 517 | return BUFFER_E;
|
---|
| 518 | }
|
---|
| 519 |
|
---|
| 520 | while (bytes--) {
|
---|
| 521 | b = input[i++];
|
---|
| 522 | length = (length << 8) | b;
|
---|
| 523 | }
|
---|
| 524 | }
|
---|
| 525 | else
|
---|
| 526 | length = b;
|
---|
| 527 |
|
---|
| 528 | if ( (i+length) > maxIdx) { /* for user of length */
|
---|
| 529 | WOLFSSL_MSG("GetLength value exceeds buffer length");
|
---|
| 530 | return BUFFER_E;
|
---|
| 531 | }
|
---|
| 532 |
|
---|
| 533 | *inOutIdx = i;
|
---|
| 534 | if (length > 0)
|
---|
| 535 | *len = length;
|
---|
| 536 |
|
---|
| 537 | return length;
|
---|
| 538 | }
|
---|
| 539 |
|
---|
| 540 |
|
---|
| 541 | WOLFSSL_LOCAL int GetSequence(const byte* input, word32* inOutIdx, int* len,
|
---|
| 542 | word32 maxIdx)
|
---|
| 543 | {
|
---|
| 544 | int length = -1;
|
---|
| 545 | word32 idx = *inOutIdx;
|
---|
| 546 |
|
---|
| 547 | if (input[idx++] != (ASN_SEQUENCE | ASN_CONSTRUCTED) ||
|
---|
| 548 | GetLength(input, &idx, &length, maxIdx) < 0)
|
---|
| 549 | return ASN_PARSE_E;
|
---|
| 550 |
|
---|
| 551 | *len = length;
|
---|
| 552 | *inOutIdx = idx;
|
---|
| 553 |
|
---|
| 554 | return length;
|
---|
| 555 | }
|
---|
| 556 |
|
---|
| 557 |
|
---|
| 558 | WOLFSSL_LOCAL int GetSet(const byte* input, word32* inOutIdx, int* len,
|
---|
| 559 | word32 maxIdx)
|
---|
| 560 | {
|
---|
| 561 | int length = -1;
|
---|
| 562 | word32 idx = *inOutIdx;
|
---|
| 563 |
|
---|
| 564 | if (input[idx++] != (ASN_SET | ASN_CONSTRUCTED) ||
|
---|
| 565 | GetLength(input, &idx, &length, maxIdx) < 0)
|
---|
| 566 | return ASN_PARSE_E;
|
---|
| 567 |
|
---|
| 568 | *len = length;
|
---|
| 569 | *inOutIdx = idx;
|
---|
| 570 |
|
---|
| 571 | return length;
|
---|
| 572 | }
|
---|
| 573 |
|
---|
| 574 |
|
---|
| 575 | /* winodws header clash for WinCE using GetVersion */
|
---|
| 576 | WOLFSSL_LOCAL int GetMyVersion(const byte* input, word32* inOutIdx,
|
---|
| 577 | int* version)
|
---|
| 578 | {
|
---|
| 579 | word32 idx = *inOutIdx;
|
---|
| 580 |
|
---|
| 581 | WOLFSSL_ENTER("GetMyVersion");
|
---|
| 582 |
|
---|
| 583 | if (input[idx++] != ASN_INTEGER)
|
---|
| 584 | return ASN_PARSE_E;
|
---|
| 585 |
|
---|
| 586 | if (input[idx++] != 0x01)
|
---|
| 587 | return ASN_VERSION_E;
|
---|
| 588 |
|
---|
| 589 | *version = input[idx++];
|
---|
| 590 | *inOutIdx = idx;
|
---|
| 591 |
|
---|
| 592 | return *version;
|
---|
| 593 | }
|
---|
| 594 |
|
---|
| 595 |
|
---|
| 596 | #ifndef NO_PWDBASED
|
---|
| 597 | /* Get small count integer, 32 bits or less */
|
---|
| 598 | static int GetShortInt(const byte* input, word32* inOutIdx, int* number)
|
---|
| 599 | {
|
---|
| 600 | word32 idx = *inOutIdx;
|
---|
| 601 | word32 len;
|
---|
| 602 |
|
---|
| 603 | *number = 0;
|
---|
| 604 |
|
---|
| 605 | if (input[idx++] != ASN_INTEGER)
|
---|
| 606 | return ASN_PARSE_E;
|
---|
| 607 |
|
---|
| 608 | len = input[idx++];
|
---|
| 609 | if (len > 4)
|
---|
| 610 | return ASN_PARSE_E;
|
---|
| 611 |
|
---|
| 612 | while (len--) {
|
---|
| 613 | *number = *number << 8 | input[idx++];
|
---|
| 614 | }
|
---|
| 615 |
|
---|
| 616 | *inOutIdx = idx;
|
---|
| 617 |
|
---|
| 618 | return *number;
|
---|
| 619 | }
|
---|
| 620 | #endif /* !NO_PWDBASED */
|
---|
| 621 |
|
---|
| 622 |
|
---|
| 623 | /* May not have one, not an error */
|
---|
| 624 | static int GetExplicitVersion(const byte* input, word32* inOutIdx, int* version)
|
---|
| 625 | {
|
---|
| 626 | word32 idx = *inOutIdx;
|
---|
| 627 |
|
---|
| 628 | WOLFSSL_ENTER("GetExplicitVersion");
|
---|
| 629 | if (input[idx++] == (ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED)) {
|
---|
| 630 | *inOutIdx = ++idx; /* eat header */
|
---|
| 631 | return GetMyVersion(input, inOutIdx, version);
|
---|
| 632 | }
|
---|
| 633 |
|
---|
| 634 | /* go back as is */
|
---|
| 635 | *version = 0;
|
---|
| 636 |
|
---|
| 637 | return 0;
|
---|
| 638 | }
|
---|
| 639 |
|
---|
| 640 |
|
---|
| 641 | WOLFSSL_LOCAL int GetInt(mp_int* mpi, const byte* input, word32* inOutIdx,
|
---|
| 642 | word32 maxIdx)
|
---|
| 643 | {
|
---|
| 644 | word32 i = *inOutIdx;
|
---|
| 645 | byte b = input[i++];
|
---|
| 646 | int length;
|
---|
| 647 |
|
---|
| 648 | if (b != ASN_INTEGER)
|
---|
| 649 | return ASN_PARSE_E;
|
---|
| 650 |
|
---|
| 651 | if (GetLength(input, &i, &length, maxIdx) < 0)
|
---|
| 652 | return ASN_PARSE_E;
|
---|
| 653 |
|
---|
| 654 | if ( (b = input[i++]) == 0x00)
|
---|
| 655 | length--;
|
---|
| 656 | else
|
---|
| 657 | i--;
|
---|
| 658 |
|
---|
| 659 | if (mp_init(mpi) != MP_OKAY)
|
---|
| 660 | return MP_INIT_E;
|
---|
| 661 |
|
---|
| 662 | if (mp_read_unsigned_bin(mpi, (byte*)input + i, length) != 0) {
|
---|
| 663 | mp_clear(mpi);
|
---|
| 664 | return ASN_GETINT_E;
|
---|
| 665 | }
|
---|
| 666 |
|
---|
| 667 | *inOutIdx = i + length;
|
---|
| 668 | return 0;
|
---|
| 669 | }
|
---|
| 670 |
|
---|
| 671 |
|
---|
| 672 | static int GetObjectId(const byte* input, word32* inOutIdx, word32* oid,
|
---|
| 673 | word32 maxIdx)
|
---|
| 674 | {
|
---|
| 675 | int length;
|
---|
| 676 | word32 i = *inOutIdx;
|
---|
| 677 | byte b;
|
---|
| 678 | *oid = 0;
|
---|
| 679 |
|
---|
| 680 | b = input[i++];
|
---|
| 681 | if (b != ASN_OBJECT_ID)
|
---|
| 682 | return ASN_OBJECT_ID_E;
|
---|
| 683 |
|
---|
| 684 | if (GetLength(input, &i, &length, maxIdx) < 0)
|
---|
| 685 | return ASN_PARSE_E;
|
---|
| 686 |
|
---|
| 687 | while(length--)
|
---|
| 688 | *oid += input[i++];
|
---|
| 689 | /* just sum it up for now */
|
---|
| 690 |
|
---|
| 691 | *inOutIdx = i;
|
---|
| 692 |
|
---|
| 693 | return 0;
|
---|
| 694 | }
|
---|
| 695 |
|
---|
| 696 |
|
---|
| 697 | WOLFSSL_LOCAL int GetAlgoId(const byte* input, word32* inOutIdx, word32* oid,
|
---|
| 698 | word32 maxIdx)
|
---|
| 699 | {
|
---|
| 700 | int length;
|
---|
| 701 | word32 i = *inOutIdx;
|
---|
| 702 | byte b;
|
---|
| 703 | *oid = 0;
|
---|
| 704 |
|
---|
| 705 | WOLFSSL_ENTER("GetAlgoId");
|
---|
| 706 |
|
---|
| 707 | if (GetSequence(input, &i, &length, maxIdx) < 0)
|
---|
| 708 | return ASN_PARSE_E;
|
---|
| 709 |
|
---|
| 710 | b = input[i++];
|
---|
| 711 | if (b != ASN_OBJECT_ID)
|
---|
| 712 | return ASN_OBJECT_ID_E;
|
---|
| 713 |
|
---|
| 714 | if (GetLength(input, &i, &length, maxIdx) < 0)
|
---|
| 715 | return ASN_PARSE_E;
|
---|
| 716 |
|
---|
| 717 | while(length--) {
|
---|
| 718 | /* odd HC08 compiler behavior here when input[i++] */
|
---|
| 719 | *oid += input[i];
|
---|
| 720 | i++;
|
---|
| 721 | }
|
---|
| 722 | /* just sum it up for now */
|
---|
| 723 |
|
---|
| 724 | /* could have NULL tag and 0 terminator, but may not */
|
---|
| 725 | b = input[i++];
|
---|
| 726 |
|
---|
| 727 | if (b == ASN_TAG_NULL) {
|
---|
| 728 | b = input[i++];
|
---|
| 729 | if (b != 0)
|
---|
| 730 | return ASN_EXPECT_0_E;
|
---|
| 731 | }
|
---|
| 732 | else
|
---|
| 733 | /* go back, didn't have it */
|
---|
| 734 | i--;
|
---|
| 735 |
|
---|
| 736 | *inOutIdx = i;
|
---|
| 737 |
|
---|
| 738 | return 0;
|
---|
| 739 | }
|
---|
| 740 |
|
---|
| 741 | #ifndef NO_RSA
|
---|
| 742 |
|
---|
| 743 |
|
---|
| 744 | #ifdef HAVE_CAVIUM
|
---|
| 745 |
|
---|
| 746 | static int GetCaviumInt(byte** buff, word16* buffSz, const byte* input,
|
---|
| 747 | word32* inOutIdx, word32 maxIdx, void* heap)
|
---|
| 748 | {
|
---|
| 749 | word32 i = *inOutIdx;
|
---|
| 750 | byte b = input[i++];
|
---|
| 751 | int length;
|
---|
| 752 |
|
---|
| 753 | if (b != ASN_INTEGER)
|
---|
| 754 | return ASN_PARSE_E;
|
---|
| 755 |
|
---|
| 756 | if (GetLength(input, &i, &length, maxIdx) < 0)
|
---|
| 757 | return ASN_PARSE_E;
|
---|
| 758 |
|
---|
| 759 | if ( (b = input[i++]) == 0x00)
|
---|
| 760 | length--;
|
---|
| 761 | else
|
---|
| 762 | i--;
|
---|
| 763 |
|
---|
| 764 | *buffSz = (word16)length;
|
---|
| 765 | *buff = XMALLOC(*buffSz, heap, DYNAMIC_TYPE_CAVIUM_RSA);
|
---|
| 766 | if (*buff == NULL)
|
---|
| 767 | return MEMORY_E;
|
---|
| 768 |
|
---|
| 769 | XMEMCPY(*buff, input + i, *buffSz);
|
---|
| 770 |
|
---|
| 771 | *inOutIdx = i + length;
|
---|
| 772 | return 0;
|
---|
| 773 | }
|
---|
| 774 |
|
---|
| 775 | static int CaviumRsaPrivateKeyDecode(const byte* input, word32* inOutIdx,
|
---|
| 776 | RsaKey* key, word32 inSz)
|
---|
| 777 | {
|
---|
| 778 | int version, length;
|
---|
| 779 | void* h = key->heap;
|
---|
| 780 |
|
---|
| 781 | if (GetSequence(input, inOutIdx, &length, inSz) < 0)
|
---|
| 782 | return ASN_PARSE_E;
|
---|
| 783 |
|
---|
| 784 | if (GetMyVersion(input, inOutIdx, &version) < 0)
|
---|
| 785 | return ASN_PARSE_E;
|
---|
| 786 |
|
---|
| 787 | key->type = RSA_PRIVATE;
|
---|
| 788 |
|
---|
| 789 | if (GetCaviumInt(&key->c_n, &key->c_nSz, input, inOutIdx, inSz, h) < 0 ||
|
---|
| 790 | GetCaviumInt(&key->c_e, &key->c_eSz, input, inOutIdx, inSz, h) < 0 ||
|
---|
| 791 | GetCaviumInt(&key->c_d, &key->c_dSz, input, inOutIdx, inSz, h) < 0 ||
|
---|
| 792 | GetCaviumInt(&key->c_p, &key->c_pSz, input, inOutIdx, inSz, h) < 0 ||
|
---|
| 793 | GetCaviumInt(&key->c_q, &key->c_qSz, input, inOutIdx, inSz, h) < 0 ||
|
---|
| 794 | GetCaviumInt(&key->c_dP, &key->c_dP_Sz, input, inOutIdx, inSz, h) < 0 ||
|
---|
| 795 | GetCaviumInt(&key->c_dQ, &key->c_dQ_Sz, input, inOutIdx, inSz, h) < 0 ||
|
---|
| 796 | GetCaviumInt(&key->c_u, &key->c_uSz, input, inOutIdx, inSz, h) < 0 )
|
---|
| 797 | return ASN_RSA_KEY_E;
|
---|
| 798 |
|
---|
| 799 | return 0;
|
---|
| 800 | }
|
---|
| 801 |
|
---|
| 802 |
|
---|
| 803 | #endif /* HAVE_CAVIUM */
|
---|
| 804 |
|
---|
| 805 | #ifndef HAVE_USER_RSA
|
---|
| 806 | int wc_RsaPrivateKeyDecode(const byte* input, word32* inOutIdx, RsaKey* key,
|
---|
| 807 | word32 inSz)
|
---|
| 808 | {
|
---|
| 809 | int version, length;
|
---|
| 810 |
|
---|
| 811 | #ifdef HAVE_CAVIUM
|
---|
| 812 | if (key->magic == WOLFSSL_RSA_CAVIUM_MAGIC)
|
---|
| 813 | return CaviumRsaPrivateKeyDecode(input, inOutIdx, key, inSz);
|
---|
| 814 | #endif
|
---|
| 815 |
|
---|
| 816 | if (GetSequence(input, inOutIdx, &length, inSz) < 0)
|
---|
| 817 | return ASN_PARSE_E;
|
---|
| 818 |
|
---|
| 819 | if (GetMyVersion(input, inOutIdx, &version) < 0)
|
---|
| 820 | return ASN_PARSE_E;
|
---|
| 821 |
|
---|
| 822 | key->type = RSA_PRIVATE;
|
---|
| 823 |
|
---|
| 824 | if (GetInt(&key->n, input, inOutIdx, inSz) < 0 ||
|
---|
| 825 | GetInt(&key->e, input, inOutIdx, inSz) < 0 ||
|
---|
| 826 | GetInt(&key->d, input, inOutIdx, inSz) < 0 ||
|
---|
| 827 | GetInt(&key->p, input, inOutIdx, inSz) < 0 ||
|
---|
| 828 | GetInt(&key->q, input, inOutIdx, inSz) < 0 ||
|
---|
| 829 | GetInt(&key->dP, input, inOutIdx, inSz) < 0 ||
|
---|
| 830 | GetInt(&key->dQ, input, inOutIdx, inSz) < 0 ||
|
---|
| 831 | GetInt(&key->u, input, inOutIdx, inSz) < 0 ) return ASN_RSA_KEY_E;
|
---|
| 832 |
|
---|
| 833 | return 0;
|
---|
| 834 | }
|
---|
| 835 | #endif /* HAVE_USER_RSA */
|
---|
| 836 | #endif /* NO_RSA */
|
---|
| 837 |
|
---|
| 838 | /* Remove PKCS8 header, move beginning of traditional to beginning of input */
|
---|
| 839 | int ToTraditional(byte* input, word32 sz)
|
---|
| 840 | {
|
---|
| 841 | word32 inOutIdx = 0, oid;
|
---|
| 842 | int version, length;
|
---|
| 843 |
|
---|
| 844 | if (GetSequence(input, &inOutIdx, &length, sz) < 0)
|
---|
| 845 | return ASN_PARSE_E;
|
---|
| 846 |
|
---|
| 847 | if (GetMyVersion(input, &inOutIdx, &version) < 0)
|
---|
| 848 | return ASN_PARSE_E;
|
---|
| 849 |
|
---|
| 850 | if (GetAlgoId(input, &inOutIdx, &oid, sz) < 0)
|
---|
| 851 | return ASN_PARSE_E;
|
---|
| 852 |
|
---|
| 853 | if (input[inOutIdx] == ASN_OBJECT_ID) {
|
---|
| 854 | /* pkcs8 ecc uses slightly different format */
|
---|
| 855 | inOutIdx++; /* past id */
|
---|
| 856 | if (GetLength(input, &inOutIdx, &length, sz) < 0)
|
---|
| 857 | return ASN_PARSE_E;
|
---|
| 858 | inOutIdx += length; /* over sub id, key input will verify */
|
---|
| 859 | }
|
---|
| 860 |
|
---|
| 861 | if (input[inOutIdx++] != ASN_OCTET_STRING)
|
---|
| 862 | return ASN_PARSE_E;
|
---|
| 863 |
|
---|
| 864 | if (GetLength(input, &inOutIdx, &length, sz) < 0)
|
---|
| 865 | return ASN_PARSE_E;
|
---|
| 866 |
|
---|
| 867 | XMEMMOVE(input, input + inOutIdx, length);
|
---|
| 868 |
|
---|
| 869 | return length;
|
---|
| 870 | }
|
---|
| 871 |
|
---|
| 872 |
|
---|
| 873 | #ifndef NO_PWDBASED
|
---|
| 874 |
|
---|
| 875 | /* Check To see if PKCS version algo is supported, set id if it is return 0
|
---|
| 876 | < 0 on error */
|
---|
| 877 | static int CheckAlgo(int first, int second, int* id, int* version)
|
---|
| 878 | {
|
---|
| 879 | *id = ALGO_ID_E;
|
---|
| 880 | *version = PKCS5; /* default */
|
---|
| 881 |
|
---|
| 882 | if (first == 1) {
|
---|
| 883 | switch (second) {
|
---|
| 884 | case 1:
|
---|
| 885 | *id = PBE_SHA1_RC4_128;
|
---|
| 886 | *version = PKCS12;
|
---|
| 887 | return 0;
|
---|
| 888 | case 3:
|
---|
| 889 | *id = PBE_SHA1_DES3;
|
---|
| 890 | *version = PKCS12;
|
---|
| 891 | return 0;
|
---|
| 892 | default:
|
---|
| 893 | return ALGO_ID_E;
|
---|
| 894 | }
|
---|
| 895 | }
|
---|
| 896 |
|
---|
| 897 | if (first != PKCS5)
|
---|
| 898 | return ASN_INPUT_E; /* VERSION ERROR */
|
---|
| 899 |
|
---|
| 900 | if (second == PBES2) {
|
---|
| 901 | *version = PKCS5v2;
|
---|
| 902 | return 0;
|
---|
| 903 | }
|
---|
| 904 |
|
---|
| 905 | switch (second) {
|
---|
| 906 | case 3: /* see RFC 2898 for ids */
|
---|
| 907 | *id = PBE_MD5_DES;
|
---|
| 908 | return 0;
|
---|
| 909 | case 10:
|
---|
| 910 | *id = PBE_SHA1_DES;
|
---|
| 911 | return 0;
|
---|
| 912 | default:
|
---|
| 913 | return ALGO_ID_E;
|
---|
| 914 |
|
---|
| 915 | }
|
---|
| 916 | }
|
---|
| 917 |
|
---|
| 918 |
|
---|
| 919 | /* Check To see if PKCS v2 algo is supported, set id if it is return 0
|
---|
| 920 | < 0 on error */
|
---|
| 921 | static int CheckAlgoV2(int oid, int* id)
|
---|
| 922 | {
|
---|
| 923 | switch (oid) {
|
---|
| 924 | case 69:
|
---|
| 925 | *id = PBE_SHA1_DES;
|
---|
| 926 | return 0;
|
---|
| 927 | case 652:
|
---|
| 928 | *id = PBE_SHA1_DES3;
|
---|
| 929 | return 0;
|
---|
| 930 | default:
|
---|
| 931 | return ALGO_ID_E;
|
---|
| 932 |
|
---|
| 933 | }
|
---|
| 934 | }
|
---|
| 935 |
|
---|
| 936 |
|
---|
| 937 | /* Decrypt intput in place from parameters based on id */
|
---|
| 938 | static int DecryptKey(const char* password, int passwordSz, byte* salt,
|
---|
| 939 | int saltSz, int iterations, int id, byte* input,
|
---|
| 940 | int length, int version, byte* cbcIv)
|
---|
| 941 | {
|
---|
| 942 | int typeH;
|
---|
| 943 | int derivedLen;
|
---|
| 944 | int decryptionType;
|
---|
| 945 | int ret = 0;
|
---|
| 946 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 947 | byte* key;
|
---|
| 948 | #else
|
---|
| 949 | byte key[MAX_KEY_SIZE];
|
---|
| 950 | #endif
|
---|
| 951 |
|
---|
| 952 | (void)input;
|
---|
| 953 | (void)length;
|
---|
| 954 |
|
---|
| 955 | switch (id) {
|
---|
| 956 | case PBE_MD5_DES:
|
---|
| 957 | typeH = MD5;
|
---|
| 958 | derivedLen = 16; /* may need iv for v1.5 */
|
---|
| 959 | decryptionType = DES_TYPE;
|
---|
| 960 | break;
|
---|
| 961 |
|
---|
| 962 | case PBE_SHA1_DES:
|
---|
| 963 | typeH = SHA;
|
---|
| 964 | derivedLen = 16; /* may need iv for v1.5 */
|
---|
| 965 | decryptionType = DES_TYPE;
|
---|
| 966 | break;
|
---|
| 967 |
|
---|
| 968 | case PBE_SHA1_DES3:
|
---|
| 969 | typeH = SHA;
|
---|
| 970 | derivedLen = 32; /* may need iv for v1.5 */
|
---|
| 971 | decryptionType = DES3_TYPE;
|
---|
| 972 | break;
|
---|
| 973 |
|
---|
| 974 | case PBE_SHA1_RC4_128:
|
---|
| 975 | typeH = SHA;
|
---|
| 976 | derivedLen = 16;
|
---|
| 977 | decryptionType = RC4_TYPE;
|
---|
| 978 | break;
|
---|
| 979 |
|
---|
| 980 | default:
|
---|
| 981 | return ALGO_ID_E;
|
---|
| 982 | }
|
---|
| 983 |
|
---|
| 984 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 985 | key = (byte*)XMALLOC(MAX_KEY_SIZE, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 986 | if (key == NULL)
|
---|
| 987 | return MEMORY_E;
|
---|
| 988 | #endif
|
---|
| 989 |
|
---|
| 990 | if (version == PKCS5v2)
|
---|
| 991 | ret = wc_PBKDF2(key, (byte*)password, passwordSz,
|
---|
| 992 | salt, saltSz, iterations, derivedLen, typeH);
|
---|
| 993 | #ifndef NO_SHA
|
---|
| 994 | else if (version == PKCS5)
|
---|
| 995 | ret = wc_PBKDF1(key, (byte*)password, passwordSz,
|
---|
| 996 | salt, saltSz, iterations, derivedLen, typeH);
|
---|
| 997 | #endif
|
---|
| 998 | else if (version == PKCS12) {
|
---|
| 999 | int i, idx = 0;
|
---|
| 1000 | byte unicodePasswd[MAX_UNICODE_SZ];
|
---|
| 1001 |
|
---|
| 1002 | if ( (passwordSz * 2 + 2) > (int)sizeof(unicodePasswd)) {
|
---|
| 1003 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1004 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1005 | #endif
|
---|
| 1006 | return UNICODE_SIZE_E;
|
---|
| 1007 | }
|
---|
| 1008 |
|
---|
| 1009 | for (i = 0; i < passwordSz; i++) {
|
---|
| 1010 | unicodePasswd[idx++] = 0x00;
|
---|
| 1011 | unicodePasswd[idx++] = (byte)password[i];
|
---|
| 1012 | }
|
---|
| 1013 | /* add trailing NULL */
|
---|
| 1014 | unicodePasswd[idx++] = 0x00;
|
---|
| 1015 | unicodePasswd[idx++] = 0x00;
|
---|
| 1016 |
|
---|
| 1017 | ret = wc_PKCS12_PBKDF(key, unicodePasswd, idx, salt, saltSz,
|
---|
| 1018 | iterations, derivedLen, typeH, 1);
|
---|
| 1019 | if (decryptionType != RC4_TYPE)
|
---|
| 1020 | ret += wc_PKCS12_PBKDF(cbcIv, unicodePasswd, idx, salt, saltSz,
|
---|
| 1021 | iterations, 8, typeH, 2);
|
---|
| 1022 | }
|
---|
| 1023 | else {
|
---|
| 1024 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1025 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1026 | #endif
|
---|
| 1027 | return ALGO_ID_E;
|
---|
| 1028 | }
|
---|
| 1029 |
|
---|
| 1030 | if (ret != 0) {
|
---|
| 1031 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1032 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1033 | #endif
|
---|
| 1034 | return ret;
|
---|
| 1035 | }
|
---|
| 1036 |
|
---|
| 1037 | switch (decryptionType) {
|
---|
| 1038 | #ifndef NO_DES3
|
---|
| 1039 | case DES_TYPE:
|
---|
| 1040 | {
|
---|
| 1041 | Des dec;
|
---|
| 1042 | byte* desIv = key + 8;
|
---|
| 1043 |
|
---|
| 1044 | if (version == PKCS5v2 || version == PKCS12)
|
---|
| 1045 | desIv = cbcIv;
|
---|
| 1046 |
|
---|
| 1047 | ret = wc_Des_SetKey(&dec, key, desIv, DES_DECRYPTION);
|
---|
| 1048 | if (ret != 0) {
|
---|
| 1049 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1050 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1051 | #endif
|
---|
| 1052 | return ret;
|
---|
| 1053 | }
|
---|
| 1054 |
|
---|
| 1055 | wc_Des_CbcDecrypt(&dec, input, input, length);
|
---|
| 1056 | break;
|
---|
| 1057 | }
|
---|
| 1058 |
|
---|
| 1059 | case DES3_TYPE:
|
---|
| 1060 | {
|
---|
| 1061 | Des3 dec;
|
---|
| 1062 | byte* desIv = key + 24;
|
---|
| 1063 |
|
---|
| 1064 | if (version == PKCS5v2 || version == PKCS12)
|
---|
| 1065 | desIv = cbcIv;
|
---|
| 1066 | ret = wc_Des3_SetKey(&dec, key, desIv, DES_DECRYPTION);
|
---|
| 1067 | if (ret != 0) {
|
---|
| 1068 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1069 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1070 | #endif
|
---|
| 1071 | return ret;
|
---|
| 1072 | }
|
---|
| 1073 | ret = wc_Des3_CbcDecrypt(&dec, input, input, length);
|
---|
| 1074 | if (ret != 0) {
|
---|
| 1075 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1076 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1077 | #endif
|
---|
| 1078 | return ret;
|
---|
| 1079 | }
|
---|
| 1080 | break;
|
---|
| 1081 | }
|
---|
| 1082 | #endif
|
---|
| 1083 | #ifndef NO_RC4
|
---|
| 1084 | case RC4_TYPE:
|
---|
| 1085 | {
|
---|
| 1086 | Arc4 dec;
|
---|
| 1087 |
|
---|
| 1088 | wc_Arc4SetKey(&dec, key, derivedLen);
|
---|
| 1089 | wc_Arc4Process(&dec, input, input, length);
|
---|
| 1090 | break;
|
---|
| 1091 | }
|
---|
| 1092 | #endif
|
---|
| 1093 |
|
---|
| 1094 | default:
|
---|
| 1095 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1096 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1097 | #endif
|
---|
| 1098 | return ALGO_ID_E;
|
---|
| 1099 | }
|
---|
| 1100 |
|
---|
| 1101 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1102 | XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1103 | #endif
|
---|
| 1104 |
|
---|
| 1105 | return 0;
|
---|
| 1106 | }
|
---|
| 1107 |
|
---|
| 1108 |
|
---|
| 1109 | /* Remove Encrypted PKCS8 header, move beginning of traditional to beginning
|
---|
| 1110 | of input */
|
---|
| 1111 | int ToTraditionalEnc(byte* input, word32 sz,const char* password,int passwordSz)
|
---|
| 1112 | {
|
---|
| 1113 | word32 inOutIdx = 0, oid;
|
---|
| 1114 | int first, second, length, version, saltSz, id;
|
---|
| 1115 | int iterations = 0;
|
---|
| 1116 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1117 | byte* salt = NULL;
|
---|
| 1118 | byte* cbcIv = NULL;
|
---|
| 1119 | #else
|
---|
| 1120 | byte salt[MAX_SALT_SIZE];
|
---|
| 1121 | byte cbcIv[MAX_IV_SIZE];
|
---|
| 1122 | #endif
|
---|
| 1123 |
|
---|
| 1124 | if (GetSequence(input, &inOutIdx, &length, sz) < 0)
|
---|
| 1125 | return ASN_PARSE_E;
|
---|
| 1126 |
|
---|
| 1127 | if (GetAlgoId(input, &inOutIdx, &oid, sz) < 0)
|
---|
| 1128 | return ASN_PARSE_E;
|
---|
| 1129 |
|
---|
| 1130 | first = input[inOutIdx - 2]; /* PKCS version alwyas 2nd to last byte */
|
---|
| 1131 | second = input[inOutIdx - 1]; /* version.algo, algo id last byte */
|
---|
| 1132 |
|
---|
| 1133 | if (CheckAlgo(first, second, &id, &version) < 0)
|
---|
| 1134 | return ASN_INPUT_E; /* Algo ID error */
|
---|
| 1135 |
|
---|
| 1136 | if (version == PKCS5v2) {
|
---|
| 1137 |
|
---|
| 1138 | if (GetSequence(input, &inOutIdx, &length, sz) < 0)
|
---|
| 1139 | return ASN_PARSE_E;
|
---|
| 1140 |
|
---|
| 1141 | if (GetAlgoId(input, &inOutIdx, &oid, sz) < 0)
|
---|
| 1142 | return ASN_PARSE_E;
|
---|
| 1143 |
|
---|
| 1144 | if (oid != PBKDF2_OID)
|
---|
| 1145 | return ASN_PARSE_E;
|
---|
| 1146 | }
|
---|
| 1147 |
|
---|
| 1148 | if (GetSequence(input, &inOutIdx, &length, sz) < 0)
|
---|
| 1149 | return ASN_PARSE_E;
|
---|
| 1150 |
|
---|
| 1151 | if (input[inOutIdx++] != ASN_OCTET_STRING)
|
---|
| 1152 | return ASN_PARSE_E;
|
---|
| 1153 |
|
---|
| 1154 | if (GetLength(input, &inOutIdx, &saltSz, sz) < 0)
|
---|
| 1155 | return ASN_PARSE_E;
|
---|
| 1156 |
|
---|
| 1157 | if (saltSz > MAX_SALT_SIZE)
|
---|
| 1158 | return ASN_PARSE_E;
|
---|
| 1159 |
|
---|
| 1160 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1161 | salt = (byte*)XMALLOC(MAX_SALT_SIZE, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1162 | if (salt == NULL)
|
---|
| 1163 | return MEMORY_E;
|
---|
| 1164 | #endif
|
---|
| 1165 |
|
---|
| 1166 | XMEMCPY(salt, &input[inOutIdx], saltSz);
|
---|
| 1167 | inOutIdx += saltSz;
|
---|
| 1168 |
|
---|
| 1169 | if (GetShortInt(input, &inOutIdx, &iterations) < 0) {
|
---|
| 1170 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1171 | XFREE(salt, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1172 | #endif
|
---|
| 1173 | return ASN_PARSE_E;
|
---|
| 1174 | }
|
---|
| 1175 |
|
---|
| 1176 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1177 | cbcIv = (byte*)XMALLOC(MAX_IV_SIZE, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1178 | if (cbcIv == NULL) {
|
---|
| 1179 | XFREE(salt, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1180 | return MEMORY_E;
|
---|
| 1181 | }
|
---|
| 1182 | #endif
|
---|
| 1183 |
|
---|
| 1184 | if (version == PKCS5v2) {
|
---|
| 1185 | /* get encryption algo */
|
---|
| 1186 | if (GetAlgoId(input, &inOutIdx, &oid, sz) < 0) {
|
---|
| 1187 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1188 | XFREE(salt, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1189 | XFREE(cbcIv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1190 | #endif
|
---|
| 1191 | return ASN_PARSE_E;
|
---|
| 1192 | }
|
---|
| 1193 |
|
---|
| 1194 | if (CheckAlgoV2(oid, &id) < 0) {
|
---|
| 1195 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1196 | XFREE(salt, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1197 | XFREE(cbcIv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1198 | #endif
|
---|
| 1199 | return ASN_PARSE_E; /* PKCS v2 algo id error */
|
---|
| 1200 | }
|
---|
| 1201 |
|
---|
| 1202 | if (input[inOutIdx++] != ASN_OCTET_STRING) {
|
---|
| 1203 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1204 | XFREE(salt, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1205 | XFREE(cbcIv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1206 | #endif
|
---|
| 1207 | return ASN_PARSE_E;
|
---|
| 1208 | }
|
---|
| 1209 |
|
---|
| 1210 | if (GetLength(input, &inOutIdx, &length, sz) < 0) {
|
---|
| 1211 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1212 | XFREE(salt, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1213 | XFREE(cbcIv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1214 | #endif
|
---|
| 1215 | return ASN_PARSE_E;
|
---|
| 1216 | }
|
---|
| 1217 |
|
---|
| 1218 | XMEMCPY(cbcIv, &input[inOutIdx], length);
|
---|
| 1219 | inOutIdx += length;
|
---|
| 1220 | }
|
---|
| 1221 |
|
---|
| 1222 | if (input[inOutIdx++] != ASN_OCTET_STRING) {
|
---|
| 1223 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1224 | XFREE(salt, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1225 | XFREE(cbcIv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1226 | #endif
|
---|
| 1227 | return ASN_PARSE_E;
|
---|
| 1228 | }
|
---|
| 1229 |
|
---|
| 1230 | if (GetLength(input, &inOutIdx, &length, sz) < 0) {
|
---|
| 1231 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1232 | XFREE(salt, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1233 | XFREE(cbcIv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1234 | #endif
|
---|
| 1235 | return ASN_PARSE_E;
|
---|
| 1236 | }
|
---|
| 1237 |
|
---|
| 1238 | if (DecryptKey(password, passwordSz, salt, saltSz, iterations, id,
|
---|
| 1239 | input + inOutIdx, length, version, cbcIv) < 0) {
|
---|
| 1240 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1241 | XFREE(salt, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1242 | XFREE(cbcIv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1243 | #endif
|
---|
| 1244 | return ASN_INPUT_E; /* decrypt failure */
|
---|
| 1245 | }
|
---|
| 1246 |
|
---|
| 1247 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1248 | XFREE(salt, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1249 | XFREE(cbcIv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1250 | #endif
|
---|
| 1251 |
|
---|
| 1252 | XMEMMOVE(input, input + inOutIdx, length);
|
---|
| 1253 | return ToTraditional(input, length);
|
---|
| 1254 | }
|
---|
| 1255 |
|
---|
| 1256 | #endif /* NO_PWDBASED */
|
---|
| 1257 |
|
---|
| 1258 | #ifndef NO_RSA
|
---|
| 1259 |
|
---|
| 1260 | #ifndef HAVE_USER_RSA
|
---|
| 1261 | int wc_RsaPublicKeyDecode(const byte* input, word32* inOutIdx, RsaKey* key,
|
---|
| 1262 | word32 inSz)
|
---|
| 1263 | {
|
---|
| 1264 | int length;
|
---|
| 1265 |
|
---|
| 1266 | if (GetSequence(input, inOutIdx, &length, inSz) < 0)
|
---|
| 1267 | return ASN_PARSE_E;
|
---|
| 1268 |
|
---|
| 1269 | key->type = RSA_PUBLIC;
|
---|
| 1270 |
|
---|
| 1271 | #if defined(OPENSSL_EXTRA) || defined(RSA_DECODE_EXTRA)
|
---|
| 1272 | {
|
---|
| 1273 | byte b = input[*inOutIdx];
|
---|
| 1274 | if (b != ASN_INTEGER) {
|
---|
| 1275 | /* not from decoded cert, will have algo id, skip past */
|
---|
| 1276 | if (GetSequence(input, inOutIdx, &length, inSz) < 0)
|
---|
| 1277 | return ASN_PARSE_E;
|
---|
| 1278 |
|
---|
| 1279 | b = input[(*inOutIdx)++];
|
---|
| 1280 | if (b != ASN_OBJECT_ID)
|
---|
| 1281 | return ASN_OBJECT_ID_E;
|
---|
| 1282 |
|
---|
| 1283 | if (GetLength(input, inOutIdx, &length, inSz) < 0)
|
---|
| 1284 | return ASN_PARSE_E;
|
---|
| 1285 |
|
---|
| 1286 | *inOutIdx += length; /* skip past */
|
---|
| 1287 |
|
---|
| 1288 | /* could have NULL tag and 0 terminator, but may not */
|
---|
| 1289 | b = input[(*inOutIdx)++];
|
---|
| 1290 |
|
---|
| 1291 | if (b == ASN_TAG_NULL) {
|
---|
| 1292 | b = input[(*inOutIdx)++];
|
---|
| 1293 | if (b != 0)
|
---|
| 1294 | return ASN_EXPECT_0_E;
|
---|
| 1295 | }
|
---|
| 1296 | else
|
---|
| 1297 | /* go back, didn't have it */
|
---|
| 1298 | (*inOutIdx)--;
|
---|
| 1299 |
|
---|
| 1300 | /* should have bit tag length and seq next */
|
---|
| 1301 | b = input[(*inOutIdx)++];
|
---|
| 1302 | if (b != ASN_BIT_STRING)
|
---|
| 1303 | return ASN_BITSTR_E;
|
---|
| 1304 |
|
---|
| 1305 | if (GetLength(input, inOutIdx, &length, inSz) < 0)
|
---|
| 1306 | return ASN_PARSE_E;
|
---|
| 1307 |
|
---|
| 1308 | /* could have 0 */
|
---|
| 1309 | b = input[(*inOutIdx)++];
|
---|
| 1310 | if (b != 0)
|
---|
| 1311 | (*inOutIdx)--;
|
---|
| 1312 |
|
---|
| 1313 | if (GetSequence(input, inOutIdx, &length, inSz) < 0)
|
---|
| 1314 | return ASN_PARSE_E;
|
---|
| 1315 | } /* end if */
|
---|
| 1316 | } /* openssl var block */
|
---|
| 1317 | #endif /* OPENSSL_EXTRA */
|
---|
| 1318 |
|
---|
| 1319 | if (GetInt(&key->n, input, inOutIdx, inSz) < 0 ||
|
---|
| 1320 | GetInt(&key->e, input, inOutIdx, inSz) < 0 ) return ASN_RSA_KEY_E;
|
---|
| 1321 |
|
---|
| 1322 | return 0;
|
---|
| 1323 | }
|
---|
| 1324 |
|
---|
| 1325 | /* import RSA public key elements (n, e) into RsaKey structure (key) */
|
---|
| 1326 | int wc_RsaPublicKeyDecodeRaw(const byte* n, word32 nSz, const byte* e,
|
---|
| 1327 | word32 eSz, RsaKey* key)
|
---|
| 1328 | {
|
---|
| 1329 | if (n == NULL || e == NULL || key == NULL)
|
---|
| 1330 | return BAD_FUNC_ARG;
|
---|
| 1331 |
|
---|
| 1332 | key->type = RSA_PUBLIC;
|
---|
| 1333 |
|
---|
| 1334 | if (mp_init(&key->n) != MP_OKAY)
|
---|
| 1335 | return MP_INIT_E;
|
---|
| 1336 |
|
---|
| 1337 | if (mp_read_unsigned_bin(&key->n, n, nSz) != 0) {
|
---|
| 1338 | mp_clear(&key->n);
|
---|
| 1339 | return ASN_GETINT_E;
|
---|
| 1340 | }
|
---|
| 1341 |
|
---|
| 1342 | if (mp_init(&key->e) != MP_OKAY) {
|
---|
| 1343 | mp_clear(&key->n);
|
---|
| 1344 | return MP_INIT_E;
|
---|
| 1345 | }
|
---|
| 1346 |
|
---|
| 1347 | if (mp_read_unsigned_bin(&key->e, e, eSz) != 0) {
|
---|
| 1348 | mp_clear(&key->n);
|
---|
| 1349 | mp_clear(&key->e);
|
---|
| 1350 | return ASN_GETINT_E;
|
---|
| 1351 | }
|
---|
| 1352 |
|
---|
| 1353 | return 0;
|
---|
| 1354 | }
|
---|
| 1355 | #endif /* HAVE_USER_RSA */
|
---|
| 1356 | #endif
|
---|
| 1357 |
|
---|
| 1358 | #ifndef NO_DH
|
---|
| 1359 |
|
---|
| 1360 | int wc_DhKeyDecode(const byte* input, word32* inOutIdx, DhKey* key, word32 inSz)
|
---|
| 1361 | {
|
---|
| 1362 | int length;
|
---|
| 1363 |
|
---|
| 1364 | if (GetSequence(input, inOutIdx, &length, inSz) < 0)
|
---|
| 1365 | return ASN_PARSE_E;
|
---|
| 1366 |
|
---|
| 1367 | if (GetInt(&key->p, input, inOutIdx, inSz) < 0 ||
|
---|
| 1368 | GetInt(&key->g, input, inOutIdx, inSz) < 0 ) return ASN_DH_KEY_E;
|
---|
| 1369 |
|
---|
| 1370 | return 0;
|
---|
| 1371 | }
|
---|
| 1372 |
|
---|
| 1373 |
|
---|
| 1374 | int wc_DhParamsLoad(const byte* input, word32 inSz, byte* p, word32* pInOutSz,
|
---|
| 1375 | byte* g, word32* gInOutSz)
|
---|
| 1376 | {
|
---|
| 1377 | word32 i = 0;
|
---|
| 1378 | byte b;
|
---|
| 1379 | int length;
|
---|
| 1380 |
|
---|
| 1381 | if (GetSequence(input, &i, &length, inSz) < 0)
|
---|
| 1382 | return ASN_PARSE_E;
|
---|
| 1383 |
|
---|
| 1384 | b = input[i++];
|
---|
| 1385 | if (b != ASN_INTEGER)
|
---|
| 1386 | return ASN_PARSE_E;
|
---|
| 1387 |
|
---|
| 1388 | if (GetLength(input, &i, &length, inSz) < 0)
|
---|
| 1389 | return ASN_PARSE_E;
|
---|
| 1390 |
|
---|
| 1391 | if ( (b = input[i++]) == 0x00)
|
---|
| 1392 | length--;
|
---|
| 1393 | else
|
---|
| 1394 | i--;
|
---|
| 1395 |
|
---|
| 1396 | if (length <= (int)*pInOutSz) {
|
---|
| 1397 | XMEMCPY(p, &input[i], length);
|
---|
| 1398 | *pInOutSz = length;
|
---|
| 1399 | }
|
---|
| 1400 | else
|
---|
| 1401 | return BUFFER_E;
|
---|
| 1402 |
|
---|
| 1403 | i += length;
|
---|
| 1404 |
|
---|
| 1405 | b = input[i++];
|
---|
| 1406 | if (b != ASN_INTEGER)
|
---|
| 1407 | return ASN_PARSE_E;
|
---|
| 1408 |
|
---|
| 1409 | if (GetLength(input, &i, &length, inSz) < 0)
|
---|
| 1410 | return ASN_PARSE_E;
|
---|
| 1411 |
|
---|
| 1412 | if (length <= (int)*gInOutSz) {
|
---|
| 1413 | XMEMCPY(g, &input[i], length);
|
---|
| 1414 | *gInOutSz = length;
|
---|
| 1415 | }
|
---|
| 1416 | else
|
---|
| 1417 | return BUFFER_E;
|
---|
| 1418 |
|
---|
| 1419 | return 0;
|
---|
| 1420 | }
|
---|
| 1421 |
|
---|
| 1422 | #endif /* NO_DH */
|
---|
| 1423 |
|
---|
| 1424 |
|
---|
| 1425 | #ifndef NO_DSA
|
---|
| 1426 |
|
---|
| 1427 | int DsaPublicKeyDecode(const byte* input, word32* inOutIdx, DsaKey* key,
|
---|
| 1428 | word32 inSz)
|
---|
| 1429 | {
|
---|
| 1430 | int length;
|
---|
| 1431 |
|
---|
| 1432 | if (GetSequence(input, inOutIdx, &length, inSz) < 0)
|
---|
| 1433 | return ASN_PARSE_E;
|
---|
| 1434 |
|
---|
| 1435 | if (GetInt(&key->p, input, inOutIdx, inSz) < 0 ||
|
---|
| 1436 | GetInt(&key->q, input, inOutIdx, inSz) < 0 ||
|
---|
| 1437 | GetInt(&key->g, input, inOutIdx, inSz) < 0 ||
|
---|
| 1438 | GetInt(&key->y, input, inOutIdx, inSz) < 0 )
|
---|
| 1439 | return ASN_DH_KEY_E;
|
---|
| 1440 |
|
---|
| 1441 | key->type = DSA_PUBLIC;
|
---|
| 1442 | return 0;
|
---|
| 1443 | }
|
---|
| 1444 |
|
---|
| 1445 |
|
---|
| 1446 | int DsaPrivateKeyDecode(const byte* input, word32* inOutIdx, DsaKey* key,
|
---|
| 1447 | word32 inSz)
|
---|
| 1448 | {
|
---|
| 1449 | int length, version;
|
---|
| 1450 |
|
---|
| 1451 | if (GetSequence(input, inOutIdx, &length, inSz) < 0)
|
---|
| 1452 | return ASN_PARSE_E;
|
---|
| 1453 |
|
---|
| 1454 | if (GetMyVersion(input, inOutIdx, &version) < 0)
|
---|
| 1455 | return ASN_PARSE_E;
|
---|
| 1456 |
|
---|
| 1457 | if (GetInt(&key->p, input, inOutIdx, inSz) < 0 ||
|
---|
| 1458 | GetInt(&key->q, input, inOutIdx, inSz) < 0 ||
|
---|
| 1459 | GetInt(&key->g, input, inOutIdx, inSz) < 0 ||
|
---|
| 1460 | GetInt(&key->y, input, inOutIdx, inSz) < 0 ||
|
---|
| 1461 | GetInt(&key->x, input, inOutIdx, inSz) < 0 )
|
---|
| 1462 | return ASN_DH_KEY_E;
|
---|
| 1463 |
|
---|
| 1464 | key->type = DSA_PRIVATE;
|
---|
| 1465 | return 0;
|
---|
| 1466 | }
|
---|
| 1467 |
|
---|
| 1468 | static mp_int* GetDsaInt(DsaKey* key, int idx)
|
---|
| 1469 | {
|
---|
| 1470 | if (idx == 0)
|
---|
| 1471 | return &key->p;
|
---|
| 1472 | if (idx == 1)
|
---|
| 1473 | return &key->q;
|
---|
| 1474 | if (idx == 2)
|
---|
| 1475 | return &key->g;
|
---|
| 1476 | if (idx == 3)
|
---|
| 1477 | return &key->y;
|
---|
| 1478 | if (idx == 4)
|
---|
| 1479 | return &key->x;
|
---|
| 1480 |
|
---|
| 1481 | return NULL;
|
---|
| 1482 | }
|
---|
| 1483 |
|
---|
| 1484 | /* Release Tmp DSA resources */
|
---|
| 1485 | static INLINE void FreeTmpDsas(byte** tmps)
|
---|
| 1486 | {
|
---|
| 1487 | int i;
|
---|
| 1488 |
|
---|
| 1489 | for (i = 0; i < DSA_INTS; i++)
|
---|
| 1490 | XFREE(tmps[i], NULL, DYNAMIC_TYPE_DSA);
|
---|
| 1491 | }
|
---|
| 1492 |
|
---|
| 1493 | /* Convert DsaKey key to DER format, write to output (inLen), return bytes
|
---|
| 1494 | written */
|
---|
| 1495 | int wc_DsaKeyToDer(DsaKey* key, byte* output, word32 inLen)
|
---|
| 1496 | {
|
---|
| 1497 | word32 seqSz, verSz, rawLen, intTotalLen = 0;
|
---|
| 1498 | word32 sizes[DSA_INTS];
|
---|
| 1499 | int i, j, outLen, ret = 0, lbit;
|
---|
| 1500 |
|
---|
| 1501 | byte seq[MAX_SEQ_SZ];
|
---|
| 1502 | byte ver[MAX_VERSION_SZ];
|
---|
| 1503 | byte* tmps[DSA_INTS];
|
---|
| 1504 |
|
---|
| 1505 | if (!key || !output)
|
---|
| 1506 | return BAD_FUNC_ARG;
|
---|
| 1507 |
|
---|
| 1508 | if (key->type != DSA_PRIVATE)
|
---|
| 1509 | return BAD_FUNC_ARG;
|
---|
| 1510 |
|
---|
| 1511 | for (i = 0; i < DSA_INTS; i++)
|
---|
| 1512 | tmps[i] = NULL;
|
---|
| 1513 |
|
---|
| 1514 | /* write all big ints from key to DER tmps */
|
---|
| 1515 | for (i = 0; i < DSA_INTS; i++) {
|
---|
| 1516 | mp_int* keyInt = GetDsaInt(key, i);
|
---|
| 1517 |
|
---|
| 1518 | /* leading zero */
|
---|
| 1519 | if ((mp_count_bits(keyInt) & 7) == 0 || mp_iszero(keyInt) == MP_YES)
|
---|
| 1520 | lbit = 1;
|
---|
| 1521 | else
|
---|
| 1522 | lbit = 0;
|
---|
| 1523 |
|
---|
| 1524 | rawLen = mp_unsigned_bin_size(keyInt) + lbit;
|
---|
| 1525 |
|
---|
| 1526 | tmps[i] = (byte*)XMALLOC(rawLen + MAX_SEQ_SZ, NULL, DYNAMIC_TYPE_DSA);
|
---|
| 1527 | if (tmps[i] == NULL) {
|
---|
| 1528 | ret = MEMORY_E;
|
---|
| 1529 | break;
|
---|
| 1530 | }
|
---|
| 1531 |
|
---|
| 1532 | tmps[i][0] = ASN_INTEGER;
|
---|
| 1533 | sizes[i] = SetLength(rawLen, tmps[i] + 1) + 1 + lbit; /* tag & lbit */
|
---|
| 1534 |
|
---|
| 1535 | if (sizes[i] <= MAX_SEQ_SZ) {
|
---|
| 1536 | int err;
|
---|
| 1537 |
|
---|
| 1538 | /* leading zero */
|
---|
| 1539 | if (lbit)
|
---|
| 1540 | tmps[i][sizes[i]-1] = 0x00;
|
---|
| 1541 |
|
---|
| 1542 | err = mp_to_unsigned_bin(keyInt, tmps[i] + sizes[i]);
|
---|
| 1543 | if (err == MP_OKAY) {
|
---|
| 1544 | sizes[i] += (rawLen-lbit); /* lbit included in rawLen */
|
---|
| 1545 | intTotalLen += sizes[i];
|
---|
| 1546 | }
|
---|
| 1547 | else {
|
---|
| 1548 | ret = err;
|
---|
| 1549 | break;
|
---|
| 1550 | }
|
---|
| 1551 | }
|
---|
| 1552 | else {
|
---|
| 1553 | ret = ASN_INPUT_E;
|
---|
| 1554 | break;
|
---|
| 1555 | }
|
---|
| 1556 | }
|
---|
| 1557 |
|
---|
| 1558 | if (ret != 0) {
|
---|
| 1559 | FreeTmpDsas(tmps);
|
---|
| 1560 | return ret;
|
---|
| 1561 | }
|
---|
| 1562 |
|
---|
| 1563 | /* make headers */
|
---|
| 1564 | verSz = SetMyVersion(0, ver, FALSE);
|
---|
| 1565 | seqSz = SetSequence(verSz + intTotalLen, seq);
|
---|
| 1566 |
|
---|
| 1567 | outLen = seqSz + verSz + intTotalLen;
|
---|
| 1568 | if (outLen > (int)inLen)
|
---|
| 1569 | return BAD_FUNC_ARG;
|
---|
| 1570 |
|
---|
| 1571 | /* write to output */
|
---|
| 1572 | XMEMCPY(output, seq, seqSz);
|
---|
| 1573 | j = seqSz;
|
---|
| 1574 | XMEMCPY(output + j, ver, verSz);
|
---|
| 1575 | j += verSz;
|
---|
| 1576 |
|
---|
| 1577 | for (i = 0; i < DSA_INTS; i++) {
|
---|
| 1578 | XMEMCPY(output + j, tmps[i], sizes[i]);
|
---|
| 1579 | j += sizes[i];
|
---|
| 1580 | }
|
---|
| 1581 | FreeTmpDsas(tmps);
|
---|
| 1582 |
|
---|
| 1583 | return outLen;
|
---|
| 1584 | }
|
---|
| 1585 |
|
---|
| 1586 | #endif /* NO_DSA */
|
---|
| 1587 |
|
---|
| 1588 |
|
---|
| 1589 | void InitDecodedCert(DecodedCert* cert, byte* source, word32 inSz, void* heap)
|
---|
| 1590 | {
|
---|
| 1591 | cert->publicKey = 0;
|
---|
| 1592 | cert->pubKeySize = 0;
|
---|
| 1593 | cert->pubKeyStored = 0;
|
---|
| 1594 | cert->version = 0;
|
---|
| 1595 | cert->signature = 0;
|
---|
| 1596 | cert->subjectCN = 0;
|
---|
| 1597 | cert->subjectCNLen = 0;
|
---|
| 1598 | cert->subjectCNEnc = CTC_UTF8;
|
---|
| 1599 | cert->subjectCNStored = 0;
|
---|
| 1600 | cert->weOwnAltNames = 0;
|
---|
| 1601 | cert->altNames = NULL;
|
---|
| 1602 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 1603 | cert->altEmailNames = NULL;
|
---|
| 1604 | cert->permittedNames = NULL;
|
---|
| 1605 | cert->excludedNames = NULL;
|
---|
| 1606 | #endif /* IGNORE_NAME_CONSTRAINTS */
|
---|
| 1607 | cert->issuer[0] = '\0';
|
---|
| 1608 | cert->subject[0] = '\0';
|
---|
| 1609 | cert->source = source; /* don't own */
|
---|
| 1610 | cert->srcIdx = 0;
|
---|
| 1611 | cert->maxIdx = inSz; /* can't go over this index */
|
---|
| 1612 | cert->heap = heap;
|
---|
| 1613 | XMEMSET(cert->serial, 0, EXTERNAL_SERIAL_SIZE);
|
---|
| 1614 | cert->serialSz = 0;
|
---|
| 1615 | cert->extensions = 0;
|
---|
| 1616 | cert->extensionsSz = 0;
|
---|
| 1617 | cert->extensionsIdx = 0;
|
---|
| 1618 | cert->extAuthInfo = NULL;
|
---|
| 1619 | cert->extAuthInfoSz = 0;
|
---|
| 1620 | cert->extCrlInfo = NULL;
|
---|
| 1621 | cert->extCrlInfoSz = 0;
|
---|
| 1622 | XMEMSET(cert->extSubjKeyId, 0, KEYID_SIZE);
|
---|
| 1623 | cert->extSubjKeyIdSet = 0;
|
---|
| 1624 | XMEMSET(cert->extAuthKeyId, 0, KEYID_SIZE);
|
---|
| 1625 | cert->extAuthKeyIdSet = 0;
|
---|
| 1626 | cert->extKeyUsageSet = 0;
|
---|
| 1627 | cert->extKeyUsage = 0;
|
---|
| 1628 | cert->extExtKeyUsageSet = 0;
|
---|
| 1629 | cert->extExtKeyUsage = 0;
|
---|
| 1630 | cert->isCA = 0;
|
---|
| 1631 | #ifdef HAVE_PKCS7
|
---|
| 1632 | cert->issuerRaw = NULL;
|
---|
| 1633 | cert->issuerRawLen = 0;
|
---|
| 1634 | #endif
|
---|
| 1635 | #ifdef WOLFSSL_CERT_GEN
|
---|
| 1636 | cert->subjectSN = 0;
|
---|
| 1637 | cert->subjectSNLen = 0;
|
---|
| 1638 | cert->subjectSNEnc = CTC_UTF8;
|
---|
| 1639 | cert->subjectC = 0;
|
---|
| 1640 | cert->subjectCLen = 0;
|
---|
| 1641 | cert->subjectCEnc = CTC_PRINTABLE;
|
---|
| 1642 | cert->subjectL = 0;
|
---|
| 1643 | cert->subjectLLen = 0;
|
---|
| 1644 | cert->subjectLEnc = CTC_UTF8;
|
---|
| 1645 | cert->subjectST = 0;
|
---|
| 1646 | cert->subjectSTLen = 0;
|
---|
| 1647 | cert->subjectSTEnc = CTC_UTF8;
|
---|
| 1648 | cert->subjectO = 0;
|
---|
| 1649 | cert->subjectOLen = 0;
|
---|
| 1650 | cert->subjectOEnc = CTC_UTF8;
|
---|
| 1651 | cert->subjectOU = 0;
|
---|
| 1652 | cert->subjectOULen = 0;
|
---|
| 1653 | cert->subjectOUEnc = CTC_UTF8;
|
---|
| 1654 | cert->subjectEmail = 0;
|
---|
| 1655 | cert->subjectEmailLen = 0;
|
---|
| 1656 | #endif /* WOLFSSL_CERT_GEN */
|
---|
| 1657 | cert->beforeDate = NULL;
|
---|
| 1658 | cert->beforeDateLen = 0;
|
---|
| 1659 | cert->afterDate = NULL;
|
---|
| 1660 | cert->afterDateLen = 0;
|
---|
| 1661 | #ifdef OPENSSL_EXTRA
|
---|
| 1662 | XMEMSET(&cert->issuerName, 0, sizeof(DecodedName));
|
---|
| 1663 | XMEMSET(&cert->subjectName, 0, sizeof(DecodedName));
|
---|
| 1664 | cert->extBasicConstSet = 0;
|
---|
| 1665 | cert->extBasicConstCrit = 0;
|
---|
| 1666 | cert->extBasicConstPlSet = 0;
|
---|
| 1667 | cert->pathLength = 0;
|
---|
| 1668 | cert->extSubjAltNameSet = 0;
|
---|
| 1669 | cert->extSubjAltNameCrit = 0;
|
---|
| 1670 | cert->extAuthKeyIdCrit = 0;
|
---|
| 1671 | cert->extSubjKeyIdCrit = 0;
|
---|
| 1672 | cert->extKeyUsageCrit = 0;
|
---|
| 1673 | cert->extExtKeyUsageCrit = 0;
|
---|
| 1674 | cert->extExtKeyUsageSrc = NULL;
|
---|
| 1675 | cert->extExtKeyUsageSz = 0;
|
---|
| 1676 | cert->extExtKeyUsageCount = 0;
|
---|
| 1677 | cert->extAuthKeyIdSrc = NULL;
|
---|
| 1678 | cert->extAuthKeyIdSz = 0;
|
---|
| 1679 | cert->extSubjKeyIdSrc = NULL;
|
---|
| 1680 | cert->extSubjKeyIdSz = 0;
|
---|
| 1681 | #endif /* OPENSSL_EXTRA */
|
---|
| 1682 | #if defined(OPENSSL_EXTRA) || !defined(IGNORE_NAME_CONSTRAINTS)
|
---|
| 1683 | cert->extNameConstraintSet = 0;
|
---|
| 1684 | #endif /* OPENSSL_EXTRA || !IGNORE_NAME_CONSTRAINTS */
|
---|
| 1685 | #ifdef HAVE_ECC
|
---|
| 1686 | cert->pkCurveOID = 0;
|
---|
| 1687 | #endif /* HAVE_ECC */
|
---|
| 1688 | #ifdef WOLFSSL_SEP
|
---|
| 1689 | cert->deviceTypeSz = 0;
|
---|
| 1690 | cert->deviceType = NULL;
|
---|
| 1691 | cert->hwTypeSz = 0;
|
---|
| 1692 | cert->hwType = NULL;
|
---|
| 1693 | cert->hwSerialNumSz = 0;
|
---|
| 1694 | cert->hwSerialNum = NULL;
|
---|
| 1695 | #ifdef OPENSSL_EXTRA
|
---|
| 1696 | cert->extCertPolicySet = 0;
|
---|
| 1697 | cert->extCertPolicyCrit = 0;
|
---|
| 1698 | #endif /* OPENSSL_EXTRA */
|
---|
| 1699 | #endif /* WOLFSSL_SEP */
|
---|
| 1700 | #ifdef WOLFSSL_CERT_EXT
|
---|
| 1701 | XMEMSET(cert->extCertPolicies, 0, MAX_CERTPOL_NB*MAX_CERTPOL_SZ);
|
---|
| 1702 | cert->extCertPoliciesNb = 0;
|
---|
| 1703 | #endif
|
---|
| 1704 | }
|
---|
| 1705 |
|
---|
| 1706 |
|
---|
| 1707 | void FreeAltNames(DNS_entry* altNames, void* heap)
|
---|
| 1708 | {
|
---|
| 1709 | (void)heap;
|
---|
| 1710 |
|
---|
| 1711 | while (altNames) {
|
---|
| 1712 | DNS_entry* tmp = altNames->next;
|
---|
| 1713 |
|
---|
| 1714 | XFREE(altNames->name, heap, DYNAMIC_TYPE_ALTNAME);
|
---|
| 1715 | XFREE(altNames, heap, DYNAMIC_TYPE_ALTNAME);
|
---|
| 1716 | altNames = tmp;
|
---|
| 1717 | }
|
---|
| 1718 | }
|
---|
| 1719 |
|
---|
| 1720 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 1721 |
|
---|
| 1722 | void FreeNameSubtrees(Base_entry* names, void* heap)
|
---|
| 1723 | {
|
---|
| 1724 | (void)heap;
|
---|
| 1725 |
|
---|
| 1726 | while (names) {
|
---|
| 1727 | Base_entry* tmp = names->next;
|
---|
| 1728 |
|
---|
| 1729 | XFREE(names->name, heap, DYNAMIC_TYPE_ALTNAME);
|
---|
| 1730 | XFREE(names, heap, DYNAMIC_TYPE_ALTNAME);
|
---|
| 1731 | names = tmp;
|
---|
| 1732 | }
|
---|
| 1733 | }
|
---|
| 1734 |
|
---|
| 1735 | #endif /* IGNORE_NAME_CONSTRAINTS */
|
---|
| 1736 |
|
---|
| 1737 | void FreeDecodedCert(DecodedCert* cert)
|
---|
| 1738 | {
|
---|
| 1739 | if (cert->subjectCNStored == 1)
|
---|
| 1740 | XFREE(cert->subjectCN, cert->heap, DYNAMIC_TYPE_SUBJECT_CN);
|
---|
| 1741 | if (cert->pubKeyStored == 1)
|
---|
| 1742 | XFREE(cert->publicKey, cert->heap, DYNAMIC_TYPE_PUBLIC_KEY);
|
---|
| 1743 | if (cert->weOwnAltNames && cert->altNames)
|
---|
| 1744 | FreeAltNames(cert->altNames, cert->heap);
|
---|
| 1745 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 1746 | if (cert->altEmailNames)
|
---|
| 1747 | FreeAltNames(cert->altEmailNames, cert->heap);
|
---|
| 1748 | if (cert->permittedNames)
|
---|
| 1749 | FreeNameSubtrees(cert->permittedNames, cert->heap);
|
---|
| 1750 | if (cert->excludedNames)
|
---|
| 1751 | FreeNameSubtrees(cert->excludedNames, cert->heap);
|
---|
| 1752 | #endif /* IGNORE_NAME_CONSTRAINTS */
|
---|
| 1753 | #ifdef WOLFSSL_SEP
|
---|
| 1754 | XFREE(cert->deviceType, cert->heap, 0);
|
---|
| 1755 | XFREE(cert->hwType, cert->heap, 0);
|
---|
| 1756 | XFREE(cert->hwSerialNum, cert->heap, 0);
|
---|
| 1757 | #endif /* WOLFSSL_SEP */
|
---|
| 1758 | #ifdef OPENSSL_EXTRA
|
---|
| 1759 | if (cert->issuerName.fullName != NULL)
|
---|
| 1760 | XFREE(cert->issuerName.fullName, NULL, DYNAMIC_TYPE_X509);
|
---|
| 1761 | if (cert->subjectName.fullName != NULL)
|
---|
| 1762 | XFREE(cert->subjectName.fullName, NULL, DYNAMIC_TYPE_X509);
|
---|
| 1763 | #endif /* OPENSSL_EXTRA */
|
---|
| 1764 | }
|
---|
| 1765 |
|
---|
| 1766 |
|
---|
| 1767 | static int GetCertHeader(DecodedCert* cert)
|
---|
| 1768 | {
|
---|
| 1769 | int ret = 0, len;
|
---|
| 1770 | byte serialTmp[EXTERNAL_SERIAL_SIZE];
|
---|
| 1771 | #if defined(WOLFSSL_SMALL_STACK) && defined(USE_FAST_MATH)
|
---|
| 1772 | mp_int* mpi = NULL;
|
---|
| 1773 | #else
|
---|
| 1774 | mp_int stack_mpi;
|
---|
| 1775 | mp_int* mpi = &stack_mpi;
|
---|
| 1776 | #endif
|
---|
| 1777 |
|
---|
| 1778 | if (GetSequence(cert->source, &cert->srcIdx, &len, cert->maxIdx) < 0)
|
---|
| 1779 | return ASN_PARSE_E;
|
---|
| 1780 |
|
---|
| 1781 | cert->certBegin = cert->srcIdx;
|
---|
| 1782 |
|
---|
| 1783 | if (GetSequence(cert->source, &cert->srcIdx, &len, cert->maxIdx) < 0)
|
---|
| 1784 | return ASN_PARSE_E;
|
---|
| 1785 | cert->sigIndex = len + cert->srcIdx;
|
---|
| 1786 |
|
---|
| 1787 | if (GetExplicitVersion(cert->source, &cert->srcIdx, &cert->version) < 0)
|
---|
| 1788 | return ASN_PARSE_E;
|
---|
| 1789 |
|
---|
| 1790 | #if defined(WOLFSSL_SMALL_STACK) && defined(USE_FAST_MATH)
|
---|
| 1791 | mpi = (mp_int*)XMALLOC(sizeof(mp_int), NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1792 | if (mpi == NULL)
|
---|
| 1793 | return MEMORY_E;
|
---|
| 1794 | #endif
|
---|
| 1795 |
|
---|
| 1796 | if (GetInt(mpi, cert->source, &cert->srcIdx, cert->maxIdx) < 0) {
|
---|
| 1797 | #if defined(WOLFSSL_SMALL_STACK) && defined(USE_FAST_MATH)
|
---|
| 1798 | XFREE(mpi, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1799 | #endif
|
---|
| 1800 | return ASN_PARSE_E;
|
---|
| 1801 | }
|
---|
| 1802 |
|
---|
| 1803 | len = mp_unsigned_bin_size(mpi);
|
---|
| 1804 | if (len < (int)sizeof(serialTmp)) {
|
---|
| 1805 | if ( (ret = mp_to_unsigned_bin(mpi, serialTmp)) == MP_OKAY) {
|
---|
| 1806 | XMEMCPY(cert->serial, serialTmp, len);
|
---|
| 1807 | cert->serialSz = len;
|
---|
| 1808 | }
|
---|
| 1809 | }
|
---|
| 1810 | mp_clear(mpi);
|
---|
| 1811 |
|
---|
| 1812 | #if defined(WOLFSSL_SMALL_STACK) && defined(USE_FAST_MATH)
|
---|
| 1813 | XFREE(mpi, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1814 | #endif
|
---|
| 1815 |
|
---|
| 1816 | return ret;
|
---|
| 1817 | }
|
---|
| 1818 |
|
---|
| 1819 | #if !defined(NO_RSA)
|
---|
| 1820 | /* Store Rsa Key, may save later, Dsa could use in future */
|
---|
| 1821 | static int StoreRsaKey(DecodedCert* cert)
|
---|
| 1822 | {
|
---|
| 1823 | int length;
|
---|
| 1824 | word32 recvd = cert->srcIdx;
|
---|
| 1825 |
|
---|
| 1826 | if (GetSequence(cert->source, &cert->srcIdx, &length, cert->maxIdx) < 0)
|
---|
| 1827 | return ASN_PARSE_E;
|
---|
| 1828 |
|
---|
| 1829 | recvd = cert->srcIdx - recvd;
|
---|
| 1830 | length += recvd;
|
---|
| 1831 |
|
---|
| 1832 | while (recvd--)
|
---|
| 1833 | cert->srcIdx--;
|
---|
| 1834 |
|
---|
| 1835 | cert->pubKeySize = length;
|
---|
| 1836 | cert->publicKey = cert->source + cert->srcIdx;
|
---|
| 1837 | cert->srcIdx += length;
|
---|
| 1838 |
|
---|
| 1839 | return 0;
|
---|
| 1840 | }
|
---|
| 1841 | #endif
|
---|
| 1842 |
|
---|
| 1843 |
|
---|
| 1844 | #ifdef HAVE_ECC
|
---|
| 1845 |
|
---|
| 1846 | /* return 0 on sucess if the ECC curve oid sum is supported */
|
---|
| 1847 | static int CheckCurve(word32 oid)
|
---|
| 1848 | {
|
---|
| 1849 | int ret = 0;
|
---|
| 1850 |
|
---|
| 1851 | switch (oid) {
|
---|
| 1852 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC160)
|
---|
| 1853 | case ECC_160R1:
|
---|
| 1854 | #endif
|
---|
| 1855 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC192)
|
---|
| 1856 | case ECC_192R1:
|
---|
| 1857 | #endif
|
---|
| 1858 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC224)
|
---|
| 1859 | case ECC_224R1:
|
---|
| 1860 | #endif
|
---|
| 1861 | #if defined(HAVE_ALL_CURVES) || !defined(NO_ECC256)
|
---|
| 1862 | case ECC_256R1:
|
---|
| 1863 | #endif
|
---|
| 1864 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC384)
|
---|
| 1865 | case ECC_384R1:
|
---|
| 1866 | #endif
|
---|
| 1867 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC521)
|
---|
| 1868 | case ECC_521R1:
|
---|
| 1869 | #endif
|
---|
| 1870 | break;
|
---|
| 1871 |
|
---|
| 1872 | default:
|
---|
| 1873 | ret = ALGO_ID_E;
|
---|
| 1874 | }
|
---|
| 1875 |
|
---|
| 1876 | return ret;
|
---|
| 1877 | }
|
---|
| 1878 |
|
---|
| 1879 | #endif /* HAVE_ECC */
|
---|
| 1880 |
|
---|
| 1881 |
|
---|
| 1882 | static int GetKey(DecodedCert* cert)
|
---|
| 1883 | {
|
---|
| 1884 | int length;
|
---|
| 1885 | #ifdef HAVE_NTRU
|
---|
| 1886 | int tmpIdx = cert->srcIdx;
|
---|
| 1887 | #endif
|
---|
| 1888 |
|
---|
| 1889 | if (GetSequence(cert->source, &cert->srcIdx, &length, cert->maxIdx) < 0)
|
---|
| 1890 | return ASN_PARSE_E;
|
---|
| 1891 |
|
---|
| 1892 | if (GetAlgoId(cert->source, &cert->srcIdx, &cert->keyOID, cert->maxIdx) < 0)
|
---|
| 1893 | return ASN_PARSE_E;
|
---|
| 1894 |
|
---|
| 1895 | switch (cert->keyOID) {
|
---|
| 1896 | #ifndef NO_RSA
|
---|
| 1897 | case RSAk:
|
---|
| 1898 | {
|
---|
| 1899 | byte b = cert->source[cert->srcIdx++];
|
---|
| 1900 | if (b != ASN_BIT_STRING)
|
---|
| 1901 | return ASN_BITSTR_E;
|
---|
| 1902 |
|
---|
| 1903 | if (GetLength(cert->source,&cert->srcIdx,&length,cert->maxIdx) < 0)
|
---|
| 1904 | return ASN_PARSE_E;
|
---|
| 1905 | b = cert->source[cert->srcIdx++];
|
---|
| 1906 | if (b != 0x00)
|
---|
| 1907 | return ASN_EXPECT_0_E;
|
---|
| 1908 |
|
---|
| 1909 | return StoreRsaKey(cert);
|
---|
| 1910 | }
|
---|
| 1911 |
|
---|
| 1912 | #endif /* NO_RSA */
|
---|
| 1913 | #ifdef HAVE_NTRU
|
---|
| 1914 | case NTRUk:
|
---|
| 1915 | {
|
---|
| 1916 | const byte* key = &cert->source[tmpIdx];
|
---|
| 1917 | byte* next = (byte*)key;
|
---|
| 1918 | word16 keyLen;
|
---|
| 1919 | word32 rc;
|
---|
| 1920 | word32 remaining = cert->maxIdx - cert->srcIdx;
|
---|
| 1921 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1922 | byte* keyBlob = NULL;
|
---|
| 1923 | #else
|
---|
| 1924 | byte keyBlob[MAX_NTRU_KEY_SZ];
|
---|
| 1925 | #endif
|
---|
| 1926 | rc = ntru_crypto_ntru_encrypt_subjectPublicKeyInfo2PublicKey(key,
|
---|
| 1927 | &keyLen, NULL, &next, &remaining);
|
---|
| 1928 | if (rc != NTRU_OK)
|
---|
| 1929 | return ASN_NTRU_KEY_E;
|
---|
| 1930 | if (keyLen > MAX_NTRU_KEY_SZ)
|
---|
| 1931 | return ASN_NTRU_KEY_E;
|
---|
| 1932 |
|
---|
| 1933 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1934 | keyBlob = (byte*)XMALLOC(MAX_NTRU_KEY_SZ, NULL,
|
---|
| 1935 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1936 | if (keyBlob == NULL)
|
---|
| 1937 | return MEMORY_E;
|
---|
| 1938 | #endif
|
---|
| 1939 |
|
---|
| 1940 | rc = ntru_crypto_ntru_encrypt_subjectPublicKeyInfo2PublicKey(key,
|
---|
| 1941 | &keyLen, keyBlob, &next, &remaining);
|
---|
| 1942 | if (rc != NTRU_OK) {
|
---|
| 1943 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1944 | XFREE(keyBlob, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1945 | #endif
|
---|
| 1946 | return ASN_NTRU_KEY_E;
|
---|
| 1947 | }
|
---|
| 1948 |
|
---|
| 1949 | if ( (next - key) < 0) {
|
---|
| 1950 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1951 | XFREE(keyBlob, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1952 | #endif
|
---|
| 1953 | return ASN_NTRU_KEY_E;
|
---|
| 1954 | }
|
---|
| 1955 |
|
---|
| 1956 | cert->srcIdx = tmpIdx + (int)(next - key);
|
---|
| 1957 |
|
---|
| 1958 | cert->publicKey = (byte*) XMALLOC(keyLen, cert->heap,
|
---|
| 1959 | DYNAMIC_TYPE_PUBLIC_KEY);
|
---|
| 1960 | if (cert->publicKey == NULL) {
|
---|
| 1961 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1962 | XFREE(keyBlob, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1963 | #endif
|
---|
| 1964 | return MEMORY_E;
|
---|
| 1965 | }
|
---|
| 1966 | XMEMCPY(cert->publicKey, keyBlob, keyLen);
|
---|
| 1967 | cert->pubKeyStored = 1;
|
---|
| 1968 | cert->pubKeySize = keyLen;
|
---|
| 1969 |
|
---|
| 1970 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 1971 | XFREE(keyBlob, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 1972 | #endif
|
---|
| 1973 |
|
---|
| 1974 | return 0;
|
---|
| 1975 | }
|
---|
| 1976 | #endif /* HAVE_NTRU */
|
---|
| 1977 | #ifdef HAVE_ECC
|
---|
| 1978 | case ECDSAk:
|
---|
| 1979 | {
|
---|
| 1980 | int oidSz = 0;
|
---|
| 1981 | byte b = cert->source[cert->srcIdx++];
|
---|
| 1982 |
|
---|
| 1983 | if (b != ASN_OBJECT_ID)
|
---|
| 1984 | return ASN_OBJECT_ID_E;
|
---|
| 1985 |
|
---|
| 1986 | if (GetLength(cert->source,&cert->srcIdx,&oidSz,cert->maxIdx) < 0)
|
---|
| 1987 | return ASN_PARSE_E;
|
---|
| 1988 |
|
---|
| 1989 | while(oidSz--)
|
---|
| 1990 | cert->pkCurveOID += cert->source[cert->srcIdx++];
|
---|
| 1991 |
|
---|
| 1992 | if (CheckCurve(cert->pkCurveOID) < 0)
|
---|
| 1993 | return ECC_CURVE_OID_E;
|
---|
| 1994 |
|
---|
| 1995 | /* key header */
|
---|
| 1996 | b = cert->source[cert->srcIdx++];
|
---|
| 1997 | if (b != ASN_BIT_STRING)
|
---|
| 1998 | return ASN_BITSTR_E;
|
---|
| 1999 |
|
---|
| 2000 | if (GetLength(cert->source,&cert->srcIdx,&length,cert->maxIdx) < 0)
|
---|
| 2001 | return ASN_PARSE_E;
|
---|
| 2002 | b = cert->source[cert->srcIdx++];
|
---|
| 2003 | if (b != 0x00)
|
---|
| 2004 | return ASN_EXPECT_0_E;
|
---|
| 2005 |
|
---|
| 2006 | /* actual key, use length - 1 since ate preceding 0 */
|
---|
| 2007 | length -= 1;
|
---|
| 2008 |
|
---|
| 2009 | cert->publicKey = (byte*) XMALLOC(length, cert->heap,
|
---|
| 2010 | DYNAMIC_TYPE_PUBLIC_KEY);
|
---|
| 2011 | if (cert->publicKey == NULL)
|
---|
| 2012 | return MEMORY_E;
|
---|
| 2013 | XMEMCPY(cert->publicKey, &cert->source[cert->srcIdx], length);
|
---|
| 2014 | cert->pubKeyStored = 1;
|
---|
| 2015 | cert->pubKeySize = length;
|
---|
| 2016 |
|
---|
| 2017 | cert->srcIdx += length;
|
---|
| 2018 |
|
---|
| 2019 | return 0;
|
---|
| 2020 | }
|
---|
| 2021 | #endif /* HAVE_ECC */
|
---|
| 2022 | default:
|
---|
| 2023 | return ASN_UNKNOWN_OID_E;
|
---|
| 2024 | }
|
---|
| 2025 | }
|
---|
| 2026 |
|
---|
| 2027 |
|
---|
| 2028 | /* process NAME, either issuer or subject */
|
---|
| 2029 | static int GetName(DecodedCert* cert, int nameType)
|
---|
| 2030 | {
|
---|
| 2031 | int length; /* length of all distinguished names */
|
---|
| 2032 | int dummy;
|
---|
| 2033 | int ret;
|
---|
| 2034 | char* full;
|
---|
| 2035 | byte* hash;
|
---|
| 2036 | word32 idx;
|
---|
| 2037 | #ifdef OPENSSL_EXTRA
|
---|
| 2038 | DecodedName* dName =
|
---|
| 2039 | (nameType == ISSUER) ? &cert->issuerName : &cert->subjectName;
|
---|
| 2040 | #endif /* OPENSSL_EXTRA */
|
---|
| 2041 |
|
---|
| 2042 | WOLFSSL_MSG("Getting Cert Name");
|
---|
| 2043 |
|
---|
| 2044 | if (nameType == ISSUER) {
|
---|
| 2045 | full = cert->issuer;
|
---|
| 2046 | hash = cert->issuerHash;
|
---|
| 2047 | }
|
---|
| 2048 | else {
|
---|
| 2049 | full = cert->subject;
|
---|
| 2050 | hash = cert->subjectHash;
|
---|
| 2051 | }
|
---|
| 2052 |
|
---|
| 2053 | if (cert->source[cert->srcIdx] == ASN_OBJECT_ID) {
|
---|
| 2054 | WOLFSSL_MSG("Trying optional prefix...");
|
---|
| 2055 |
|
---|
| 2056 | if (GetLength(cert->source, &cert->srcIdx, &length, cert->maxIdx) < 0)
|
---|
| 2057 | return ASN_PARSE_E;
|
---|
| 2058 |
|
---|
| 2059 | cert->srcIdx += length;
|
---|
| 2060 | WOLFSSL_MSG("Got optional prefix");
|
---|
| 2061 | }
|
---|
| 2062 |
|
---|
| 2063 | /* For OCSP, RFC2560 section 4.1.1 states the issuer hash should be
|
---|
| 2064 | * calculated over the entire DER encoding of the Name field, including
|
---|
| 2065 | * the tag and length. */
|
---|
| 2066 | idx = cert->srcIdx;
|
---|
| 2067 | if (GetSequence(cert->source, &cert->srcIdx, &length, cert->maxIdx) < 0)
|
---|
| 2068 | return ASN_PARSE_E;
|
---|
| 2069 |
|
---|
| 2070 | #ifdef NO_SHA
|
---|
| 2071 | ret = wc_Sha256Hash(&cert->source[idx], length + cert->srcIdx - idx, hash);
|
---|
| 2072 | #else
|
---|
| 2073 | ret = wc_ShaHash(&cert->source[idx], length + cert->srcIdx - idx, hash);
|
---|
| 2074 | #endif
|
---|
| 2075 | if (ret != 0)
|
---|
| 2076 | return ret;
|
---|
| 2077 |
|
---|
| 2078 | length += cert->srcIdx;
|
---|
| 2079 | idx = 0;
|
---|
| 2080 |
|
---|
| 2081 | #ifdef HAVE_PKCS7
|
---|
| 2082 | /* store pointer to raw issuer */
|
---|
| 2083 | if (nameType == ISSUER) {
|
---|
| 2084 | cert->issuerRaw = &cert->source[cert->srcIdx];
|
---|
| 2085 | cert->issuerRawLen = length - cert->srcIdx;
|
---|
| 2086 | }
|
---|
| 2087 | #endif
|
---|
| 2088 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 2089 | if (nameType == SUBJECT) {
|
---|
| 2090 | cert->subjectRaw = &cert->source[cert->srcIdx];
|
---|
| 2091 | cert->subjectRawLen = length - cert->srcIdx;
|
---|
| 2092 | }
|
---|
| 2093 | #endif
|
---|
| 2094 |
|
---|
| 2095 | while (cert->srcIdx < (word32)length) {
|
---|
| 2096 | byte b;
|
---|
| 2097 | byte joint[2];
|
---|
| 2098 | byte tooBig = FALSE;
|
---|
| 2099 | int oidSz;
|
---|
| 2100 |
|
---|
| 2101 | if (GetSet(cert->source, &cert->srcIdx, &dummy, cert->maxIdx) < 0) {
|
---|
| 2102 | WOLFSSL_MSG("Cert name lacks set header, trying sequence");
|
---|
| 2103 | }
|
---|
| 2104 |
|
---|
| 2105 | if (GetSequence(cert->source, &cert->srcIdx, &dummy, cert->maxIdx) < 0)
|
---|
| 2106 | return ASN_PARSE_E;
|
---|
| 2107 |
|
---|
| 2108 | b = cert->source[cert->srcIdx++];
|
---|
| 2109 | if (b != ASN_OBJECT_ID)
|
---|
| 2110 | return ASN_OBJECT_ID_E;
|
---|
| 2111 |
|
---|
| 2112 | if (GetLength(cert->source, &cert->srcIdx, &oidSz, cert->maxIdx) < 0)
|
---|
| 2113 | return ASN_PARSE_E;
|
---|
| 2114 |
|
---|
| 2115 | XMEMCPY(joint, &cert->source[cert->srcIdx], sizeof(joint));
|
---|
| 2116 |
|
---|
| 2117 | /* v1 name types */
|
---|
| 2118 | if (joint[0] == 0x55 && joint[1] == 0x04) {
|
---|
| 2119 | byte id;
|
---|
| 2120 | byte copy = FALSE;
|
---|
| 2121 | int strLen;
|
---|
| 2122 |
|
---|
| 2123 | cert->srcIdx += 2;
|
---|
| 2124 | id = cert->source[cert->srcIdx++];
|
---|
| 2125 | b = cert->source[cert->srcIdx++]; /* encoding */
|
---|
| 2126 |
|
---|
| 2127 | if (GetLength(cert->source, &cert->srcIdx, &strLen,
|
---|
| 2128 | cert->maxIdx) < 0)
|
---|
| 2129 | return ASN_PARSE_E;
|
---|
| 2130 |
|
---|
| 2131 | if ( (strLen + 14) > (int)(ASN_NAME_MAX - idx)) {
|
---|
| 2132 | /* include biggest pre fix header too 4 = "/serialNumber=" */
|
---|
| 2133 | WOLFSSL_MSG("ASN Name too big, skipping");
|
---|
| 2134 | tooBig = TRUE;
|
---|
| 2135 | }
|
---|
| 2136 |
|
---|
| 2137 | if (id == ASN_COMMON_NAME) {
|
---|
| 2138 | if (nameType == SUBJECT) {
|
---|
| 2139 | cert->subjectCN = (char *)&cert->source[cert->srcIdx];
|
---|
| 2140 | cert->subjectCNLen = strLen;
|
---|
| 2141 | cert->subjectCNEnc = b;
|
---|
| 2142 | }
|
---|
| 2143 |
|
---|
| 2144 | if (!tooBig) {
|
---|
| 2145 | XMEMCPY(&full[idx], "/CN=", 4);
|
---|
| 2146 | idx += 4;
|
---|
| 2147 | copy = TRUE;
|
---|
| 2148 | }
|
---|
| 2149 | #ifdef OPENSSL_EXTRA
|
---|
| 2150 | dName->cnIdx = cert->srcIdx;
|
---|
| 2151 | dName->cnLen = strLen;
|
---|
| 2152 | #endif /* OPENSSL_EXTRA */
|
---|
| 2153 | }
|
---|
| 2154 | else if (id == ASN_SUR_NAME) {
|
---|
| 2155 | if (!tooBig) {
|
---|
| 2156 | XMEMCPY(&full[idx], "/SN=", 4);
|
---|
| 2157 | idx += 4;
|
---|
| 2158 | copy = TRUE;
|
---|
| 2159 | }
|
---|
| 2160 | #ifdef WOLFSSL_CERT_GEN
|
---|
| 2161 | if (nameType == SUBJECT) {
|
---|
| 2162 | cert->subjectSN = (char*)&cert->source[cert->srcIdx];
|
---|
| 2163 | cert->subjectSNLen = strLen;
|
---|
| 2164 | cert->subjectSNEnc = b;
|
---|
| 2165 | }
|
---|
| 2166 | #endif /* WOLFSSL_CERT_GEN */
|
---|
| 2167 | #ifdef OPENSSL_EXTRA
|
---|
| 2168 | dName->snIdx = cert->srcIdx;
|
---|
| 2169 | dName->snLen = strLen;
|
---|
| 2170 | #endif /* OPENSSL_EXTRA */
|
---|
| 2171 | }
|
---|
| 2172 | else if (id == ASN_COUNTRY_NAME) {
|
---|
| 2173 | if (!tooBig) {
|
---|
| 2174 | XMEMCPY(&full[idx], "/C=", 3);
|
---|
| 2175 | idx += 3;
|
---|
| 2176 | copy = TRUE;
|
---|
| 2177 | }
|
---|
| 2178 | #ifdef WOLFSSL_CERT_GEN
|
---|
| 2179 | if (nameType == SUBJECT) {
|
---|
| 2180 | cert->subjectC = (char*)&cert->source[cert->srcIdx];
|
---|
| 2181 | cert->subjectCLen = strLen;
|
---|
| 2182 | cert->subjectCEnc = b;
|
---|
| 2183 | }
|
---|
| 2184 | #endif /* WOLFSSL_CERT_GEN */
|
---|
| 2185 | #ifdef OPENSSL_EXTRA
|
---|
| 2186 | dName->cIdx = cert->srcIdx;
|
---|
| 2187 | dName->cLen = strLen;
|
---|
| 2188 | #endif /* OPENSSL_EXTRA */
|
---|
| 2189 | }
|
---|
| 2190 | else if (id == ASN_LOCALITY_NAME) {
|
---|
| 2191 | if (!tooBig) {
|
---|
| 2192 | XMEMCPY(&full[idx], "/L=", 3);
|
---|
| 2193 | idx += 3;
|
---|
| 2194 | copy = TRUE;
|
---|
| 2195 | }
|
---|
| 2196 | #ifdef WOLFSSL_CERT_GEN
|
---|
| 2197 | if (nameType == SUBJECT) {
|
---|
| 2198 | cert->subjectL = (char*)&cert->source[cert->srcIdx];
|
---|
| 2199 | cert->subjectLLen = strLen;
|
---|
| 2200 | cert->subjectLEnc = b;
|
---|
| 2201 | }
|
---|
| 2202 | #endif /* WOLFSSL_CERT_GEN */
|
---|
| 2203 | #ifdef OPENSSL_EXTRA
|
---|
| 2204 | dName->lIdx = cert->srcIdx;
|
---|
| 2205 | dName->lLen = strLen;
|
---|
| 2206 | #endif /* OPENSSL_EXTRA */
|
---|
| 2207 | }
|
---|
| 2208 | else if (id == ASN_STATE_NAME) {
|
---|
| 2209 | if (!tooBig) {
|
---|
| 2210 | XMEMCPY(&full[idx], "/ST=", 4);
|
---|
| 2211 | idx += 4;
|
---|
| 2212 | copy = TRUE;
|
---|
| 2213 | }
|
---|
| 2214 | #ifdef WOLFSSL_CERT_GEN
|
---|
| 2215 | if (nameType == SUBJECT) {
|
---|
| 2216 | cert->subjectST = (char*)&cert->source[cert->srcIdx];
|
---|
| 2217 | cert->subjectSTLen = strLen;
|
---|
| 2218 | cert->subjectSTEnc = b;
|
---|
| 2219 | }
|
---|
| 2220 | #endif /* WOLFSSL_CERT_GEN */
|
---|
| 2221 | #ifdef OPENSSL_EXTRA
|
---|
| 2222 | dName->stIdx = cert->srcIdx;
|
---|
| 2223 | dName->stLen = strLen;
|
---|
| 2224 | #endif /* OPENSSL_EXTRA */
|
---|
| 2225 | }
|
---|
| 2226 | else if (id == ASN_ORG_NAME) {
|
---|
| 2227 | if (!tooBig) {
|
---|
| 2228 | XMEMCPY(&full[idx], "/O=", 3);
|
---|
| 2229 | idx += 3;
|
---|
| 2230 | copy = TRUE;
|
---|
| 2231 | }
|
---|
| 2232 | #ifdef WOLFSSL_CERT_GEN
|
---|
| 2233 | if (nameType == SUBJECT) {
|
---|
| 2234 | cert->subjectO = (char*)&cert->source[cert->srcIdx];
|
---|
| 2235 | cert->subjectOLen = strLen;
|
---|
| 2236 | cert->subjectOEnc = b;
|
---|
| 2237 | }
|
---|
| 2238 | #endif /* WOLFSSL_CERT_GEN */
|
---|
| 2239 | #ifdef OPENSSL_EXTRA
|
---|
| 2240 | dName->oIdx = cert->srcIdx;
|
---|
| 2241 | dName->oLen = strLen;
|
---|
| 2242 | #endif /* OPENSSL_EXTRA */
|
---|
| 2243 | }
|
---|
| 2244 | else if (id == ASN_ORGUNIT_NAME) {
|
---|
| 2245 | if (!tooBig) {
|
---|
| 2246 | XMEMCPY(&full[idx], "/OU=", 4);
|
---|
| 2247 | idx += 4;
|
---|
| 2248 | copy = TRUE;
|
---|
| 2249 | }
|
---|
| 2250 | #ifdef WOLFSSL_CERT_GEN
|
---|
| 2251 | if (nameType == SUBJECT) {
|
---|
| 2252 | cert->subjectOU = (char*)&cert->source[cert->srcIdx];
|
---|
| 2253 | cert->subjectOULen = strLen;
|
---|
| 2254 | cert->subjectOUEnc = b;
|
---|
| 2255 | }
|
---|
| 2256 | #endif /* WOLFSSL_CERT_GEN */
|
---|
| 2257 | #ifdef OPENSSL_EXTRA
|
---|
| 2258 | dName->ouIdx = cert->srcIdx;
|
---|
| 2259 | dName->ouLen = strLen;
|
---|
| 2260 | #endif /* OPENSSL_EXTRA */
|
---|
| 2261 | }
|
---|
| 2262 | else if (id == ASN_SERIAL_NUMBER) {
|
---|
| 2263 | if (!tooBig) {
|
---|
| 2264 | XMEMCPY(&full[idx], "/serialNumber=", 14);
|
---|
| 2265 | idx += 14;
|
---|
| 2266 | copy = TRUE;
|
---|
| 2267 | }
|
---|
| 2268 | #ifdef OPENSSL_EXTRA
|
---|
| 2269 | dName->snIdx = cert->srcIdx;
|
---|
| 2270 | dName->snLen = strLen;
|
---|
| 2271 | #endif /* OPENSSL_EXTRA */
|
---|
| 2272 | }
|
---|
| 2273 |
|
---|
| 2274 | if (copy && !tooBig) {
|
---|
| 2275 | XMEMCPY(&full[idx], &cert->source[cert->srcIdx], strLen);
|
---|
| 2276 | idx += strLen;
|
---|
| 2277 | }
|
---|
| 2278 |
|
---|
| 2279 | cert->srcIdx += strLen;
|
---|
| 2280 | }
|
---|
| 2281 | else {
|
---|
| 2282 | /* skip */
|
---|
| 2283 | byte email = FALSE;
|
---|
| 2284 | byte uid = FALSE;
|
---|
| 2285 | int adv;
|
---|
| 2286 |
|
---|
| 2287 | if (joint[0] == 0x2a && joint[1] == 0x86) /* email id hdr */
|
---|
| 2288 | email = TRUE;
|
---|
| 2289 |
|
---|
| 2290 | if (joint[0] == 0x9 && joint[1] == 0x92) /* uid id hdr */
|
---|
| 2291 | uid = TRUE;
|
---|
| 2292 |
|
---|
| 2293 | cert->srcIdx += oidSz + 1;
|
---|
| 2294 |
|
---|
| 2295 | if (GetLength(cert->source, &cert->srcIdx, &adv, cert->maxIdx) < 0)
|
---|
| 2296 | return ASN_PARSE_E;
|
---|
| 2297 |
|
---|
| 2298 | if (adv > (int)(ASN_NAME_MAX - idx)) {
|
---|
| 2299 | WOLFSSL_MSG("ASN name too big, skipping");
|
---|
| 2300 | tooBig = TRUE;
|
---|
| 2301 | }
|
---|
| 2302 |
|
---|
| 2303 | if (email) {
|
---|
| 2304 | if ( (14 + adv) > (int)(ASN_NAME_MAX - idx)) {
|
---|
| 2305 | WOLFSSL_MSG("ASN name too big, skipping");
|
---|
| 2306 | tooBig = TRUE;
|
---|
| 2307 | }
|
---|
| 2308 | if (!tooBig) {
|
---|
| 2309 | XMEMCPY(&full[idx], "/emailAddress=", 14);
|
---|
| 2310 | idx += 14;
|
---|
| 2311 | }
|
---|
| 2312 |
|
---|
| 2313 | #ifdef WOLFSSL_CERT_GEN
|
---|
| 2314 | if (nameType == SUBJECT) {
|
---|
| 2315 | cert->subjectEmail = (char*)&cert->source[cert->srcIdx];
|
---|
| 2316 | cert->subjectEmailLen = adv;
|
---|
| 2317 | }
|
---|
| 2318 | #endif /* WOLFSSL_CERT_GEN */
|
---|
| 2319 | #ifdef OPENSSL_EXTRA
|
---|
| 2320 | dName->emailIdx = cert->srcIdx;
|
---|
| 2321 | dName->emailLen = adv;
|
---|
| 2322 | #endif /* OPENSSL_EXTRA */
|
---|
| 2323 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 2324 | {
|
---|
| 2325 | DNS_entry* emailName = NULL;
|
---|
| 2326 |
|
---|
| 2327 | emailName = (DNS_entry*)XMALLOC(sizeof(DNS_entry),
|
---|
| 2328 | cert->heap, DYNAMIC_TYPE_ALTNAME);
|
---|
| 2329 | if (emailName == NULL) {
|
---|
| 2330 | WOLFSSL_MSG("\tOut of Memory");
|
---|
| 2331 | return MEMORY_E;
|
---|
| 2332 | }
|
---|
| 2333 | emailName->name = (char*)XMALLOC(adv + 1,
|
---|
| 2334 | cert->heap, DYNAMIC_TYPE_ALTNAME);
|
---|
| 2335 | if (emailName->name == NULL) {
|
---|
| 2336 | WOLFSSL_MSG("\tOut of Memory");
|
---|
| 2337 | return MEMORY_E;
|
---|
| 2338 | }
|
---|
| 2339 | XMEMCPY(emailName->name,
|
---|
| 2340 | &cert->source[cert->srcIdx], adv);
|
---|
| 2341 | emailName->name[adv] = 0;
|
---|
| 2342 |
|
---|
| 2343 | emailName->next = cert->altEmailNames;
|
---|
| 2344 | cert->altEmailNames = emailName;
|
---|
| 2345 | }
|
---|
| 2346 | #endif /* IGNORE_NAME_CONSTRAINTS */
|
---|
| 2347 | if (!tooBig) {
|
---|
| 2348 | XMEMCPY(&full[idx], &cert->source[cert->srcIdx], adv);
|
---|
| 2349 | idx += adv;
|
---|
| 2350 | }
|
---|
| 2351 | }
|
---|
| 2352 |
|
---|
| 2353 | if (uid) {
|
---|
| 2354 | if ( (5 + adv) > (int)(ASN_NAME_MAX - idx)) {
|
---|
| 2355 | WOLFSSL_MSG("ASN name too big, skipping");
|
---|
| 2356 | tooBig = TRUE;
|
---|
| 2357 | }
|
---|
| 2358 | if (!tooBig) {
|
---|
| 2359 | XMEMCPY(&full[idx], "/UID=", 5);
|
---|
| 2360 | idx += 5;
|
---|
| 2361 |
|
---|
| 2362 | XMEMCPY(&full[idx], &cert->source[cert->srcIdx], adv);
|
---|
| 2363 | idx += adv;
|
---|
| 2364 | }
|
---|
| 2365 | #ifdef OPENSSL_EXTRA
|
---|
| 2366 | dName->uidIdx = cert->srcIdx;
|
---|
| 2367 | dName->uidLen = adv;
|
---|
| 2368 | #endif /* OPENSSL_EXTRA */
|
---|
| 2369 | }
|
---|
| 2370 |
|
---|
| 2371 | cert->srcIdx += adv;
|
---|
| 2372 | }
|
---|
| 2373 | }
|
---|
| 2374 | full[idx++] = 0;
|
---|
| 2375 |
|
---|
| 2376 | #ifdef OPENSSL_EXTRA
|
---|
| 2377 | {
|
---|
| 2378 | int totalLen = 0;
|
---|
| 2379 |
|
---|
| 2380 | if (dName->cnLen != 0)
|
---|
| 2381 | totalLen += dName->cnLen + 4;
|
---|
| 2382 | if (dName->snLen != 0)
|
---|
| 2383 | totalLen += dName->snLen + 4;
|
---|
| 2384 | if (dName->cLen != 0)
|
---|
| 2385 | totalLen += dName->cLen + 3;
|
---|
| 2386 | if (dName->lLen != 0)
|
---|
| 2387 | totalLen += dName->lLen + 3;
|
---|
| 2388 | if (dName->stLen != 0)
|
---|
| 2389 | totalLen += dName->stLen + 4;
|
---|
| 2390 | if (dName->oLen != 0)
|
---|
| 2391 | totalLen += dName->oLen + 3;
|
---|
| 2392 | if (dName->ouLen != 0)
|
---|
| 2393 | totalLen += dName->ouLen + 4;
|
---|
| 2394 | if (dName->emailLen != 0)
|
---|
| 2395 | totalLen += dName->emailLen + 14;
|
---|
| 2396 | if (dName->uidLen != 0)
|
---|
| 2397 | totalLen += dName->uidLen + 5;
|
---|
| 2398 | if (dName->serialLen != 0)
|
---|
| 2399 | totalLen += dName->serialLen + 14;
|
---|
| 2400 |
|
---|
| 2401 | dName->fullName = (char*)XMALLOC(totalLen + 1, NULL, DYNAMIC_TYPE_X509);
|
---|
| 2402 | if (dName->fullName != NULL) {
|
---|
| 2403 | idx = 0;
|
---|
| 2404 |
|
---|
| 2405 | if (dName->cnLen != 0) {
|
---|
| 2406 | dName->entryCount++;
|
---|
| 2407 | XMEMCPY(&dName->fullName[idx], "/CN=", 4);
|
---|
| 2408 | idx += 4;
|
---|
| 2409 | XMEMCPY(&dName->fullName[idx],
|
---|
| 2410 | &cert->source[dName->cnIdx], dName->cnLen);
|
---|
| 2411 | dName->cnIdx = idx;
|
---|
| 2412 | idx += dName->cnLen;
|
---|
| 2413 | }
|
---|
| 2414 | if (dName->snLen != 0) {
|
---|
| 2415 | dName->entryCount++;
|
---|
| 2416 | XMEMCPY(&dName->fullName[idx], "/SN=", 4);
|
---|
| 2417 | idx += 4;
|
---|
| 2418 | XMEMCPY(&dName->fullName[idx],
|
---|
| 2419 | &cert->source[dName->snIdx], dName->snLen);
|
---|
| 2420 | dName->snIdx = idx;
|
---|
| 2421 | idx += dName->snLen;
|
---|
| 2422 | }
|
---|
| 2423 | if (dName->cLen != 0) {
|
---|
| 2424 | dName->entryCount++;
|
---|
| 2425 | XMEMCPY(&dName->fullName[idx], "/C=", 3);
|
---|
| 2426 | idx += 3;
|
---|
| 2427 | XMEMCPY(&dName->fullName[idx],
|
---|
| 2428 | &cert->source[dName->cIdx], dName->cLen);
|
---|
| 2429 | dName->cIdx = idx;
|
---|
| 2430 | idx += dName->cLen;
|
---|
| 2431 | }
|
---|
| 2432 | if (dName->lLen != 0) {
|
---|
| 2433 | dName->entryCount++;
|
---|
| 2434 | XMEMCPY(&dName->fullName[idx], "/L=", 3);
|
---|
| 2435 | idx += 3;
|
---|
| 2436 | XMEMCPY(&dName->fullName[idx],
|
---|
| 2437 | &cert->source[dName->lIdx], dName->lLen);
|
---|
| 2438 | dName->lIdx = idx;
|
---|
| 2439 | idx += dName->lLen;
|
---|
| 2440 | }
|
---|
| 2441 | if (dName->stLen != 0) {
|
---|
| 2442 | dName->entryCount++;
|
---|
| 2443 | XMEMCPY(&dName->fullName[idx], "/ST=", 4);
|
---|
| 2444 | idx += 4;
|
---|
| 2445 | XMEMCPY(&dName->fullName[idx],
|
---|
| 2446 | &cert->source[dName->stIdx], dName->stLen);
|
---|
| 2447 | dName->stIdx = idx;
|
---|
| 2448 | idx += dName->stLen;
|
---|
| 2449 | }
|
---|
| 2450 | if (dName->oLen != 0) {
|
---|
| 2451 | dName->entryCount++;
|
---|
| 2452 | XMEMCPY(&dName->fullName[idx], "/O=", 3);
|
---|
| 2453 | idx += 3;
|
---|
| 2454 | XMEMCPY(&dName->fullName[idx],
|
---|
| 2455 | &cert->source[dName->oIdx], dName->oLen);
|
---|
| 2456 | dName->oIdx = idx;
|
---|
| 2457 | idx += dName->oLen;
|
---|
| 2458 | }
|
---|
| 2459 | if (dName->ouLen != 0) {
|
---|
| 2460 | dName->entryCount++;
|
---|
| 2461 | XMEMCPY(&dName->fullName[idx], "/OU=", 4);
|
---|
| 2462 | idx += 4;
|
---|
| 2463 | XMEMCPY(&dName->fullName[idx],
|
---|
| 2464 | &cert->source[dName->ouIdx], dName->ouLen);
|
---|
| 2465 | dName->ouIdx = idx;
|
---|
| 2466 | idx += dName->ouLen;
|
---|
| 2467 | }
|
---|
| 2468 | if (dName->emailLen != 0) {
|
---|
| 2469 | dName->entryCount++;
|
---|
| 2470 | XMEMCPY(&dName->fullName[idx], "/emailAddress=", 14);
|
---|
| 2471 | idx += 14;
|
---|
| 2472 | XMEMCPY(&dName->fullName[idx],
|
---|
| 2473 | &cert->source[dName->emailIdx], dName->emailLen);
|
---|
| 2474 | dName->emailIdx = idx;
|
---|
| 2475 | idx += dName->emailLen;
|
---|
| 2476 | }
|
---|
| 2477 | if (dName->uidLen != 0) {
|
---|
| 2478 | dName->entryCount++;
|
---|
| 2479 | XMEMCPY(&dName->fullName[idx], "/UID=", 5);
|
---|
| 2480 | idx += 5;
|
---|
| 2481 | XMEMCPY(&dName->fullName[idx],
|
---|
| 2482 | &cert->source[dName->uidIdx], dName->uidLen);
|
---|
| 2483 | dName->uidIdx = idx;
|
---|
| 2484 | idx += dName->uidLen;
|
---|
| 2485 | }
|
---|
| 2486 | if (dName->serialLen != 0) {
|
---|
| 2487 | dName->entryCount++;
|
---|
| 2488 | XMEMCPY(&dName->fullName[idx], "/serialNumber=", 14);
|
---|
| 2489 | idx += 14;
|
---|
| 2490 | XMEMCPY(&dName->fullName[idx],
|
---|
| 2491 | &cert->source[dName->serialIdx], dName->serialLen);
|
---|
| 2492 | dName->serialIdx = idx;
|
---|
| 2493 | idx += dName->serialLen;
|
---|
| 2494 | }
|
---|
| 2495 | dName->fullName[idx] = '\0';
|
---|
| 2496 | dName->fullNameLen = totalLen;
|
---|
| 2497 | }
|
---|
| 2498 | }
|
---|
| 2499 | #endif /* OPENSSL_EXTRA */
|
---|
| 2500 |
|
---|
| 2501 | return 0;
|
---|
| 2502 | }
|
---|
| 2503 |
|
---|
| 2504 |
|
---|
| 2505 | #ifndef NO_TIME_H
|
---|
| 2506 |
|
---|
| 2507 | /* to the second */
|
---|
| 2508 | static int DateGreaterThan(const struct tm* a, const struct tm* b)
|
---|
| 2509 | {
|
---|
| 2510 | if (a->tm_year > b->tm_year)
|
---|
| 2511 | return 1;
|
---|
| 2512 |
|
---|
| 2513 | if (a->tm_year == b->tm_year && a->tm_mon > b->tm_mon)
|
---|
| 2514 | return 1;
|
---|
| 2515 |
|
---|
| 2516 | if (a->tm_year == b->tm_year && a->tm_mon == b->tm_mon &&
|
---|
| 2517 | a->tm_mday > b->tm_mday)
|
---|
| 2518 | return 1;
|
---|
| 2519 |
|
---|
| 2520 | if (a->tm_year == b->tm_year && a->tm_mon == b->tm_mon &&
|
---|
| 2521 | a->tm_mday == b->tm_mday && a->tm_hour > b->tm_hour)
|
---|
| 2522 | return 1;
|
---|
| 2523 |
|
---|
| 2524 | if (a->tm_year == b->tm_year && a->tm_mon == b->tm_mon &&
|
---|
| 2525 | a->tm_mday == b->tm_mday && a->tm_hour == b->tm_hour &&
|
---|
| 2526 | a->tm_min > b->tm_min)
|
---|
| 2527 | return 1;
|
---|
| 2528 |
|
---|
| 2529 | if (a->tm_year == b->tm_year && a->tm_mon == b->tm_mon &&
|
---|
| 2530 | a->tm_mday == b->tm_mday && a->tm_hour == b->tm_hour &&
|
---|
| 2531 | a->tm_min == b->tm_min && a->tm_sec > b->tm_sec)
|
---|
| 2532 | return 1;
|
---|
| 2533 |
|
---|
| 2534 | return 0; /* false */
|
---|
| 2535 | }
|
---|
| 2536 |
|
---|
| 2537 |
|
---|
| 2538 | static INLINE int DateLessThan(const struct tm* a, const struct tm* b)
|
---|
| 2539 | {
|
---|
| 2540 | return DateGreaterThan(b,a);
|
---|
| 2541 | }
|
---|
| 2542 |
|
---|
| 2543 |
|
---|
| 2544 | /* like atoi but only use first byte */
|
---|
| 2545 | /* Make sure before and after dates are valid */
|
---|
| 2546 | int ValidateDate(const byte* date, byte format, int dateType)
|
---|
| 2547 | {
|
---|
| 2548 | time_t ltime;
|
---|
| 2549 | struct tm certTime;
|
---|
| 2550 | struct tm* localTime;
|
---|
| 2551 | struct tm* tmpTime = NULL;
|
---|
| 2552 | int i = 0;
|
---|
| 2553 |
|
---|
| 2554 | #if defined(FREESCALE_MQX) || defined(TIME_OVERRIDES)
|
---|
| 2555 | struct tm tmpTimeStorage;
|
---|
| 2556 | tmpTime = &tmpTimeStorage;
|
---|
| 2557 | #else
|
---|
| 2558 | (void)tmpTime;
|
---|
| 2559 | #endif
|
---|
| 2560 |
|
---|
| 2561 | ltime = XTIME(0);
|
---|
| 2562 | XMEMSET(&certTime, 0, sizeof(certTime));
|
---|
| 2563 |
|
---|
| 2564 | if (format == ASN_UTC_TIME) {
|
---|
| 2565 | if (btoi(date[0]) >= 5)
|
---|
| 2566 | certTime.tm_year = 1900;
|
---|
| 2567 | else
|
---|
| 2568 | certTime.tm_year = 2000;
|
---|
| 2569 | }
|
---|
| 2570 | else { /* format == GENERALIZED_TIME */
|
---|
| 2571 | certTime.tm_year += btoi(date[i++]) * 1000;
|
---|
| 2572 | certTime.tm_year += btoi(date[i++]) * 100;
|
---|
| 2573 | }
|
---|
| 2574 |
|
---|
| 2575 | /* adjust tm_year, tm_mon */
|
---|
| 2576 | GetTime((int*)&certTime.tm_year, date, &i); certTime.tm_year -= 1900;
|
---|
| 2577 | GetTime((int*)&certTime.tm_mon, date, &i); certTime.tm_mon -= 1;
|
---|
| 2578 | GetTime((int*)&certTime.tm_mday, date, &i);
|
---|
| 2579 | GetTime((int*)&certTime.tm_hour, date, &i);
|
---|
| 2580 | GetTime((int*)&certTime.tm_min, date, &i);
|
---|
| 2581 | GetTime((int*)&certTime.tm_sec, date, &i);
|
---|
| 2582 |
|
---|
| 2583 | if (date[i] != 'Z') { /* only Zulu supported for this profile */
|
---|
| 2584 | WOLFSSL_MSG("Only Zulu time supported for this profile");
|
---|
| 2585 | return 0;
|
---|
| 2586 | }
|
---|
| 2587 |
|
---|
| 2588 | localTime = XGMTIME(<ime, tmpTime);
|
---|
| 2589 |
|
---|
| 2590 | if (localTime == NULL) {
|
---|
| 2591 | WOLFSSL_MSG("XGMTIME failed");
|
---|
| 2592 | return 0;
|
---|
| 2593 | }
|
---|
| 2594 |
|
---|
| 2595 | if (dateType == BEFORE) {
|
---|
| 2596 | if (DateLessThan(localTime, &certTime))
|
---|
| 2597 | return 0;
|
---|
| 2598 | }
|
---|
| 2599 | else
|
---|
| 2600 | if (DateGreaterThan(localTime, &certTime))
|
---|
| 2601 | return 0;
|
---|
| 2602 |
|
---|
| 2603 | return 1;
|
---|
| 2604 | }
|
---|
| 2605 |
|
---|
| 2606 | #endif /* NO_TIME_H */
|
---|
| 2607 |
|
---|
| 2608 |
|
---|
| 2609 | static int GetDate(DecodedCert* cert, int dateType)
|
---|
| 2610 | {
|
---|
| 2611 | int length;
|
---|
| 2612 | byte date[MAX_DATE_SIZE];
|
---|
| 2613 | byte b;
|
---|
| 2614 | word32 startIdx = 0;
|
---|
| 2615 |
|
---|
| 2616 | if (dateType == BEFORE)
|
---|
| 2617 | cert->beforeDate = &cert->source[cert->srcIdx];
|
---|
| 2618 | else
|
---|
| 2619 | cert->afterDate = &cert->source[cert->srcIdx];
|
---|
| 2620 | startIdx = cert->srcIdx;
|
---|
| 2621 |
|
---|
| 2622 | b = cert->source[cert->srcIdx++];
|
---|
| 2623 | if (b != ASN_UTC_TIME && b != ASN_GENERALIZED_TIME)
|
---|
| 2624 | return ASN_TIME_E;
|
---|
| 2625 |
|
---|
| 2626 | if (GetLength(cert->source, &cert->srcIdx, &length, cert->maxIdx) < 0)
|
---|
| 2627 | return ASN_PARSE_E;
|
---|
| 2628 |
|
---|
| 2629 | if (length > MAX_DATE_SIZE || length < MIN_DATE_SIZE)
|
---|
| 2630 | return ASN_DATE_SZ_E;
|
---|
| 2631 |
|
---|
| 2632 | XMEMCPY(date, &cert->source[cert->srcIdx], length);
|
---|
| 2633 | cert->srcIdx += length;
|
---|
| 2634 |
|
---|
| 2635 | if (dateType == BEFORE)
|
---|
| 2636 | cert->beforeDateLen = cert->srcIdx - startIdx;
|
---|
| 2637 | else
|
---|
| 2638 | cert->afterDateLen = cert->srcIdx - startIdx;
|
---|
| 2639 |
|
---|
| 2640 | if (!XVALIDATE_DATE(date, b, dateType)) {
|
---|
| 2641 | if (dateType == BEFORE)
|
---|
| 2642 | return ASN_BEFORE_DATE_E;
|
---|
| 2643 | else
|
---|
| 2644 | return ASN_AFTER_DATE_E;
|
---|
| 2645 | }
|
---|
| 2646 |
|
---|
| 2647 | return 0;
|
---|
| 2648 | }
|
---|
| 2649 |
|
---|
| 2650 |
|
---|
| 2651 | static int GetValidity(DecodedCert* cert, int verify)
|
---|
| 2652 | {
|
---|
| 2653 | int length;
|
---|
| 2654 | int badDate = 0;
|
---|
| 2655 |
|
---|
| 2656 | if (GetSequence(cert->source, &cert->srcIdx, &length, cert->maxIdx) < 0)
|
---|
| 2657 | return ASN_PARSE_E;
|
---|
| 2658 |
|
---|
| 2659 | if (GetDate(cert, BEFORE) < 0 && verify)
|
---|
| 2660 | badDate = ASN_BEFORE_DATE_E; /* continue parsing */
|
---|
| 2661 |
|
---|
| 2662 | if (GetDate(cert, AFTER) < 0 && verify)
|
---|
| 2663 | return ASN_AFTER_DATE_E;
|
---|
| 2664 |
|
---|
| 2665 | if (badDate != 0)
|
---|
| 2666 | return badDate;
|
---|
| 2667 |
|
---|
| 2668 | return 0;
|
---|
| 2669 | }
|
---|
| 2670 |
|
---|
| 2671 |
|
---|
| 2672 | int DecodeToKey(DecodedCert* cert, int verify)
|
---|
| 2673 | {
|
---|
| 2674 | int badDate = 0;
|
---|
| 2675 | int ret;
|
---|
| 2676 |
|
---|
| 2677 | if ( (ret = GetCertHeader(cert)) < 0)
|
---|
| 2678 | return ret;
|
---|
| 2679 |
|
---|
| 2680 | WOLFSSL_MSG("Got Cert Header");
|
---|
| 2681 |
|
---|
| 2682 | if ( (ret = GetAlgoId(cert->source, &cert->srcIdx, &cert->signatureOID,
|
---|
| 2683 | cert->maxIdx)) < 0)
|
---|
| 2684 | return ret;
|
---|
| 2685 |
|
---|
| 2686 | WOLFSSL_MSG("Got Algo ID");
|
---|
| 2687 |
|
---|
| 2688 | if ( (ret = GetName(cert, ISSUER)) < 0)
|
---|
| 2689 | return ret;
|
---|
| 2690 |
|
---|
| 2691 | if ( (ret = GetValidity(cert, verify)) < 0)
|
---|
| 2692 | badDate = ret;
|
---|
| 2693 |
|
---|
| 2694 | if ( (ret = GetName(cert, SUBJECT)) < 0)
|
---|
| 2695 | return ret;
|
---|
| 2696 |
|
---|
| 2697 | WOLFSSL_MSG("Got Subject Name");
|
---|
| 2698 |
|
---|
| 2699 | if ( (ret = GetKey(cert)) < 0)
|
---|
| 2700 | return ret;
|
---|
| 2701 |
|
---|
| 2702 | WOLFSSL_MSG("Got Key");
|
---|
| 2703 |
|
---|
| 2704 | if (badDate != 0)
|
---|
| 2705 | return badDate;
|
---|
| 2706 |
|
---|
| 2707 | return ret;
|
---|
| 2708 | }
|
---|
| 2709 |
|
---|
| 2710 |
|
---|
| 2711 | static int GetSignature(DecodedCert* cert)
|
---|
| 2712 | {
|
---|
| 2713 | int length;
|
---|
| 2714 | byte b = cert->source[cert->srcIdx++];
|
---|
| 2715 |
|
---|
| 2716 | if (b != ASN_BIT_STRING)
|
---|
| 2717 | return ASN_BITSTR_E;
|
---|
| 2718 |
|
---|
| 2719 | if (GetLength(cert->source, &cert->srcIdx, &length, cert->maxIdx) < 0)
|
---|
| 2720 | return ASN_PARSE_E;
|
---|
| 2721 |
|
---|
| 2722 | cert->sigLength = length;
|
---|
| 2723 |
|
---|
| 2724 | b = cert->source[cert->srcIdx++];
|
---|
| 2725 | if (b != 0x00)
|
---|
| 2726 | return ASN_EXPECT_0_E;
|
---|
| 2727 |
|
---|
| 2728 | cert->sigLength--;
|
---|
| 2729 | cert->signature = &cert->source[cert->srcIdx];
|
---|
| 2730 | cert->srcIdx += cert->sigLength;
|
---|
| 2731 |
|
---|
| 2732 | return 0;
|
---|
| 2733 | }
|
---|
| 2734 |
|
---|
| 2735 |
|
---|
| 2736 | static word32 SetDigest(const byte* digest, word32 digSz, byte* output)
|
---|
| 2737 | {
|
---|
| 2738 | output[0] = ASN_OCTET_STRING;
|
---|
| 2739 | output[1] = (byte)digSz;
|
---|
| 2740 | XMEMCPY(&output[2], digest, digSz);
|
---|
| 2741 |
|
---|
| 2742 | return digSz + 2;
|
---|
| 2743 | }
|
---|
| 2744 |
|
---|
| 2745 |
|
---|
| 2746 | static word32 BytePrecision(word32 value)
|
---|
| 2747 | {
|
---|
| 2748 | word32 i;
|
---|
| 2749 | for (i = sizeof(value); i; --i)
|
---|
| 2750 | if (value >> ((i - 1) * WOLFSSL_BIT_SIZE))
|
---|
| 2751 | break;
|
---|
| 2752 |
|
---|
| 2753 | return i;
|
---|
| 2754 | }
|
---|
| 2755 |
|
---|
| 2756 |
|
---|
| 2757 | WOLFSSL_LOCAL word32 SetLength(word32 length, byte* output)
|
---|
| 2758 | {
|
---|
| 2759 | word32 i = 0, j;
|
---|
| 2760 |
|
---|
| 2761 | if (length < ASN_LONG_LENGTH)
|
---|
| 2762 | output[i++] = (byte)length;
|
---|
| 2763 | else {
|
---|
| 2764 | output[i++] = (byte)(BytePrecision(length) | ASN_LONG_LENGTH);
|
---|
| 2765 |
|
---|
| 2766 | for (j = BytePrecision(length); j; --j) {
|
---|
| 2767 | output[i] = (byte)(length >> ((j - 1) * WOLFSSL_BIT_SIZE));
|
---|
| 2768 | i++;
|
---|
| 2769 | }
|
---|
| 2770 | }
|
---|
| 2771 |
|
---|
| 2772 | return i;
|
---|
| 2773 | }
|
---|
| 2774 |
|
---|
| 2775 |
|
---|
| 2776 | WOLFSSL_LOCAL word32 SetSequence(word32 len, byte* output)
|
---|
| 2777 | {
|
---|
| 2778 | output[0] = ASN_SEQUENCE | ASN_CONSTRUCTED;
|
---|
| 2779 | return SetLength(len, output + 1) + 1;
|
---|
| 2780 | }
|
---|
| 2781 |
|
---|
| 2782 | WOLFSSL_LOCAL word32 SetOctetString(word32 len, byte* output)
|
---|
| 2783 | {
|
---|
| 2784 | output[0] = ASN_OCTET_STRING;
|
---|
| 2785 | return SetLength(len, output + 1) + 1;
|
---|
| 2786 | }
|
---|
| 2787 |
|
---|
| 2788 | /* Write a set header to output */
|
---|
| 2789 | WOLFSSL_LOCAL word32 SetSet(word32 len, byte* output)
|
---|
| 2790 | {
|
---|
| 2791 | output[0] = ASN_SET | ASN_CONSTRUCTED;
|
---|
| 2792 | return SetLength(len, output + 1) + 1;
|
---|
| 2793 | }
|
---|
| 2794 |
|
---|
| 2795 | WOLFSSL_LOCAL word32 SetImplicit(byte tag, byte number, word32 len, byte* output)
|
---|
| 2796 | {
|
---|
| 2797 |
|
---|
| 2798 | output[0] = ((tag == ASN_SEQUENCE || tag == ASN_SET) ? ASN_CONSTRUCTED : 0)
|
---|
| 2799 | | ASN_CONTEXT_SPECIFIC | number;
|
---|
| 2800 | return SetLength(len, output + 1) + 1;
|
---|
| 2801 | }
|
---|
| 2802 |
|
---|
| 2803 | WOLFSSL_LOCAL word32 SetExplicit(byte number, word32 len, byte* output)
|
---|
| 2804 | {
|
---|
| 2805 | output[0] = ASN_CONSTRUCTED | ASN_CONTEXT_SPECIFIC | number;
|
---|
| 2806 | return SetLength(len, output + 1) + 1;
|
---|
| 2807 | }
|
---|
| 2808 |
|
---|
| 2809 |
|
---|
| 2810 | #if defined(HAVE_ECC) && (defined(WOLFSSL_CERT_GEN) || defined(WOLFSSL_KEY_GEN))
|
---|
| 2811 |
|
---|
| 2812 | static int SetCurve(ecc_key* key, byte* output)
|
---|
| 2813 | {
|
---|
| 2814 |
|
---|
| 2815 | /* curve types */
|
---|
| 2816 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC192)
|
---|
| 2817 | static const byte ECC_192v1_AlgoID[] = { 0x2a, 0x86, 0x48, 0xCE, 0x3d,
|
---|
| 2818 | 0x03, 0x01, 0x01};
|
---|
| 2819 | #endif
|
---|
| 2820 | #if defined(HAVE_ALL_CURVES) || !defined(NO_ECC256)
|
---|
| 2821 | static const byte ECC_256v1_AlgoID[] = { 0x2a, 0x86, 0x48, 0xCE, 0x3d,
|
---|
| 2822 | 0x03, 0x01, 0x07};
|
---|
| 2823 | #endif
|
---|
| 2824 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC160)
|
---|
| 2825 | static const byte ECC_160r1_AlgoID[] = { 0x2b, 0x81, 0x04, 0x00,
|
---|
| 2826 | 0x02};
|
---|
| 2827 | #endif
|
---|
| 2828 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC224)
|
---|
| 2829 | static const byte ECC_224r1_AlgoID[] = { 0x2b, 0x81, 0x04, 0x00,
|
---|
| 2830 | 0x21};
|
---|
| 2831 | #endif
|
---|
| 2832 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC384)
|
---|
| 2833 | static const byte ECC_384r1_AlgoID[] = { 0x2b, 0x81, 0x04, 0x00,
|
---|
| 2834 | 0x22};
|
---|
| 2835 | #endif
|
---|
| 2836 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC521)
|
---|
| 2837 | static const byte ECC_521r1_AlgoID[] = { 0x2b, 0x81, 0x04, 0x00,
|
---|
| 2838 | 0x23};
|
---|
| 2839 | #endif
|
---|
| 2840 |
|
---|
| 2841 | int oidSz = 0;
|
---|
| 2842 | int idx = 0;
|
---|
| 2843 | int lenSz = 0;
|
---|
| 2844 | const byte* oid = 0;
|
---|
| 2845 |
|
---|
| 2846 | output[0] = ASN_OBJECT_ID;
|
---|
| 2847 | idx++;
|
---|
| 2848 |
|
---|
| 2849 | switch (key->dp->size) {
|
---|
| 2850 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC160)
|
---|
| 2851 | case 20:
|
---|
| 2852 | oidSz = sizeof(ECC_160r1_AlgoID);
|
---|
| 2853 | oid = ECC_160r1_AlgoID;
|
---|
| 2854 | break;
|
---|
| 2855 | #endif
|
---|
| 2856 |
|
---|
| 2857 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC192)
|
---|
| 2858 | case 24:
|
---|
| 2859 | oidSz = sizeof(ECC_192v1_AlgoID);
|
---|
| 2860 | oid = ECC_192v1_AlgoID;
|
---|
| 2861 | break;
|
---|
| 2862 | #endif
|
---|
| 2863 |
|
---|
| 2864 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC224)
|
---|
| 2865 | case 28:
|
---|
| 2866 | oidSz = sizeof(ECC_224r1_AlgoID);
|
---|
| 2867 | oid = ECC_224r1_AlgoID;
|
---|
| 2868 | break;
|
---|
| 2869 | #endif
|
---|
| 2870 |
|
---|
| 2871 | #if defined(HAVE_ALL_CURVES) || !defined(NO_ECC256)
|
---|
| 2872 | case 32:
|
---|
| 2873 | oidSz = sizeof(ECC_256v1_AlgoID);
|
---|
| 2874 | oid = ECC_256v1_AlgoID;
|
---|
| 2875 | break;
|
---|
| 2876 | #endif
|
---|
| 2877 |
|
---|
| 2878 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC384)
|
---|
| 2879 | case 48:
|
---|
| 2880 | oidSz = sizeof(ECC_384r1_AlgoID);
|
---|
| 2881 | oid = ECC_384r1_AlgoID;
|
---|
| 2882 | break;
|
---|
| 2883 | #endif
|
---|
| 2884 |
|
---|
| 2885 | #if defined(HAVE_ALL_CURVES) || defined(HAVE_ECC521)
|
---|
| 2886 | case 66:
|
---|
| 2887 | oidSz = sizeof(ECC_521r1_AlgoID);
|
---|
| 2888 | oid = ECC_521r1_AlgoID;
|
---|
| 2889 | break;
|
---|
| 2890 | #endif
|
---|
| 2891 |
|
---|
| 2892 | default:
|
---|
| 2893 | return ASN_UNKNOWN_OID_E;
|
---|
| 2894 | }
|
---|
| 2895 | lenSz = SetLength(oidSz, output+idx);
|
---|
| 2896 | idx += lenSz;
|
---|
| 2897 |
|
---|
| 2898 | XMEMCPY(output+idx, oid, oidSz);
|
---|
| 2899 | idx += oidSz;
|
---|
| 2900 |
|
---|
| 2901 | return idx;
|
---|
| 2902 | }
|
---|
| 2903 |
|
---|
| 2904 | #endif /* HAVE_ECC && WOLFSSL_CERT_GEN */
|
---|
| 2905 |
|
---|
| 2906 |
|
---|
| 2907 | WOLFSSL_LOCAL word32 SetAlgoID(int algoOID, byte* output, int type, int curveSz)
|
---|
| 2908 | {
|
---|
| 2909 | /* adding TAG_NULL and 0 to end */
|
---|
| 2910 |
|
---|
| 2911 | /* hashTypes */
|
---|
| 2912 | static const byte shaAlgoID[] = { 0x2b, 0x0e, 0x03, 0x02, 0x1a,
|
---|
| 2913 | 0x05, 0x00 };
|
---|
| 2914 | static const byte sha256AlgoID[] = { 0x60, 0x86, 0x48, 0x01, 0x65, 0x03,
|
---|
| 2915 | 0x04, 0x02, 0x01, 0x05, 0x00 };
|
---|
| 2916 | static const byte sha384AlgoID[] = { 0x60, 0x86, 0x48, 0x01, 0x65, 0x03,
|
---|
| 2917 | 0x04, 0x02, 0x02, 0x05, 0x00 };
|
---|
| 2918 | static const byte sha512AlgoID[] = { 0x60, 0x86, 0x48, 0x01, 0x65, 0x03,
|
---|
| 2919 | 0x04, 0x02, 0x03, 0x05, 0x00 };
|
---|
| 2920 | static const byte md5AlgoID[] = { 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d,
|
---|
| 2921 | 0x02, 0x05, 0x05, 0x00 };
|
---|
| 2922 | static const byte md2AlgoID[] = { 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d,
|
---|
| 2923 | 0x02, 0x02, 0x05, 0x00};
|
---|
| 2924 |
|
---|
| 2925 | /* blkTypes, no NULL tags because IV is there instead */
|
---|
| 2926 | static const byte desCbcAlgoID[] = { 0x2B, 0x0E, 0x03, 0x02, 0x07 };
|
---|
| 2927 | static const byte des3CbcAlgoID[] = { 0x2A, 0x86, 0x48, 0x86, 0xF7,
|
---|
| 2928 | 0x0D, 0x03, 0x07 };
|
---|
| 2929 |
|
---|
| 2930 | /* RSA sigTypes */
|
---|
| 2931 | #ifndef NO_RSA
|
---|
| 2932 | static const byte md5wRSA_AlgoID[] = { 0x2a, 0x86, 0x48, 0x86, 0xf7,
|
---|
| 2933 | 0x0d, 0x01, 0x01, 0x04, 0x05, 0x00};
|
---|
| 2934 | static const byte shawRSA_AlgoID[] = { 0x2a, 0x86, 0x48, 0x86, 0xf7,
|
---|
| 2935 | 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00};
|
---|
| 2936 | static const byte sha256wRSA_AlgoID[] = { 0x2a, 0x86, 0x48, 0x86, 0xf7,
|
---|
| 2937 | 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00};
|
---|
| 2938 | static const byte sha384wRSA_AlgoID[] = {0x2a, 0x86, 0x48, 0x86, 0xf7,
|
---|
| 2939 | 0x0d, 0x01, 0x01, 0x0c, 0x05, 0x00};
|
---|
| 2940 | static const byte sha512wRSA_AlgoID[] = {0x2a, 0x86, 0x48, 0x86, 0xf7,
|
---|
| 2941 | 0x0d, 0x01, 0x01, 0x0d, 0x05, 0x00};
|
---|
| 2942 | #endif /* NO_RSA */
|
---|
| 2943 |
|
---|
| 2944 | /* ECDSA sigTypes */
|
---|
| 2945 | #ifdef HAVE_ECC
|
---|
| 2946 | static const byte shawECDSA_AlgoID[] = { 0x2a, 0x86, 0x48, 0xCE, 0x3d,
|
---|
| 2947 | 0x04, 0x01, 0x05, 0x00};
|
---|
| 2948 | static const byte sha256wECDSA_AlgoID[] = { 0x2a, 0x86, 0x48, 0xCE,0x3d,
|
---|
| 2949 | 0x04, 0x03, 0x02, 0x05, 0x00};
|
---|
| 2950 | static const byte sha384wECDSA_AlgoID[] = { 0x2a, 0x86, 0x48, 0xCE,0x3d,
|
---|
| 2951 | 0x04, 0x03, 0x03, 0x05, 0x00};
|
---|
| 2952 | static const byte sha512wECDSA_AlgoID[] = { 0x2a, 0x86, 0x48, 0xCE,0x3d,
|
---|
| 2953 | 0x04, 0x03, 0x04, 0x05, 0x00};
|
---|
| 2954 | #endif /* HAVE_ECC */
|
---|
| 2955 |
|
---|
| 2956 | /* RSA keyType */
|
---|
| 2957 | #ifndef NO_RSA
|
---|
| 2958 | static const byte RSA_AlgoID[] = { 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d,
|
---|
| 2959 | 0x01, 0x01, 0x01, 0x05, 0x00};
|
---|
| 2960 | #endif /* NO_RSA */
|
---|
| 2961 |
|
---|
| 2962 | #ifdef HAVE_ECC
|
---|
| 2963 | /* ECC keyType */
|
---|
| 2964 | /* no tags, so set tagSz smaller later */
|
---|
| 2965 | static const byte ECC_AlgoID[] = { 0x2a, 0x86, 0x48, 0xCE, 0x3d,
|
---|
| 2966 | 0x02, 0x01};
|
---|
| 2967 | #endif /* HAVE_ECC */
|
---|
| 2968 |
|
---|
| 2969 | int algoSz = 0;
|
---|
| 2970 | int tagSz = 2; /* tag null and terminator */
|
---|
| 2971 | word32 idSz, seqSz;
|
---|
| 2972 | const byte* algoName = 0;
|
---|
| 2973 | byte ID_Length[MAX_LENGTH_SZ];
|
---|
| 2974 | byte seqArray[MAX_SEQ_SZ + 1]; /* add object_id to end */
|
---|
| 2975 |
|
---|
| 2976 | if (type == hashType) {
|
---|
| 2977 | switch (algoOID) {
|
---|
| 2978 | case SHAh:
|
---|
| 2979 | algoSz = sizeof(shaAlgoID);
|
---|
| 2980 | algoName = shaAlgoID;
|
---|
| 2981 | break;
|
---|
| 2982 |
|
---|
| 2983 | case SHA256h:
|
---|
| 2984 | algoSz = sizeof(sha256AlgoID);
|
---|
| 2985 | algoName = sha256AlgoID;
|
---|
| 2986 | break;
|
---|
| 2987 |
|
---|
| 2988 | case SHA384h:
|
---|
| 2989 | algoSz = sizeof(sha384AlgoID);
|
---|
| 2990 | algoName = sha384AlgoID;
|
---|
| 2991 | break;
|
---|
| 2992 |
|
---|
| 2993 | case SHA512h:
|
---|
| 2994 | algoSz = sizeof(sha512AlgoID);
|
---|
| 2995 | algoName = sha512AlgoID;
|
---|
| 2996 | break;
|
---|
| 2997 |
|
---|
| 2998 | case MD2h:
|
---|
| 2999 | algoSz = sizeof(md2AlgoID);
|
---|
| 3000 | algoName = md2AlgoID;
|
---|
| 3001 | break;
|
---|
| 3002 |
|
---|
| 3003 | case MD5h:
|
---|
| 3004 | algoSz = sizeof(md5AlgoID);
|
---|
| 3005 | algoName = md5AlgoID;
|
---|
| 3006 | break;
|
---|
| 3007 |
|
---|
| 3008 | default:
|
---|
| 3009 | WOLFSSL_MSG("Unknown Hash Algo");
|
---|
| 3010 | return 0; /* UNKOWN_HASH_E; */
|
---|
| 3011 | }
|
---|
| 3012 | }
|
---|
| 3013 | else if (type == blkType) {
|
---|
| 3014 | switch (algoOID) {
|
---|
| 3015 | case DESb:
|
---|
| 3016 | algoSz = sizeof(desCbcAlgoID);
|
---|
| 3017 | algoName = desCbcAlgoID;
|
---|
| 3018 | tagSz = 0;
|
---|
| 3019 | break;
|
---|
| 3020 | case DES3b:
|
---|
| 3021 | algoSz = sizeof(des3CbcAlgoID);
|
---|
| 3022 | algoName = des3CbcAlgoID;
|
---|
| 3023 | tagSz = 0;
|
---|
| 3024 | break;
|
---|
| 3025 | default:
|
---|
| 3026 | WOLFSSL_MSG("Unknown Block Algo");
|
---|
| 3027 | return 0;
|
---|
| 3028 | }
|
---|
| 3029 | }
|
---|
| 3030 | else if (type == sigType) { /* sigType */
|
---|
| 3031 | switch (algoOID) {
|
---|
| 3032 | #ifndef NO_RSA
|
---|
| 3033 | case CTC_MD5wRSA:
|
---|
| 3034 | algoSz = sizeof(md5wRSA_AlgoID);
|
---|
| 3035 | algoName = md5wRSA_AlgoID;
|
---|
| 3036 | break;
|
---|
| 3037 |
|
---|
| 3038 | case CTC_SHAwRSA:
|
---|
| 3039 | algoSz = sizeof(shawRSA_AlgoID);
|
---|
| 3040 | algoName = shawRSA_AlgoID;
|
---|
| 3041 | break;
|
---|
| 3042 |
|
---|
| 3043 | case CTC_SHA256wRSA:
|
---|
| 3044 | algoSz = sizeof(sha256wRSA_AlgoID);
|
---|
| 3045 | algoName = sha256wRSA_AlgoID;
|
---|
| 3046 | break;
|
---|
| 3047 |
|
---|
| 3048 | case CTC_SHA384wRSA:
|
---|
| 3049 | algoSz = sizeof(sha384wRSA_AlgoID);
|
---|
| 3050 | algoName = sha384wRSA_AlgoID;
|
---|
| 3051 | break;
|
---|
| 3052 |
|
---|
| 3053 | case CTC_SHA512wRSA:
|
---|
| 3054 | algoSz = sizeof(sha512wRSA_AlgoID);
|
---|
| 3055 | algoName = sha512wRSA_AlgoID;
|
---|
| 3056 | break;
|
---|
| 3057 | #endif /* NO_RSA */
|
---|
| 3058 | #ifdef HAVE_ECC
|
---|
| 3059 | case CTC_SHAwECDSA:
|
---|
| 3060 | algoSz = sizeof(shawECDSA_AlgoID);
|
---|
| 3061 | algoName = shawECDSA_AlgoID;
|
---|
| 3062 | break;
|
---|
| 3063 |
|
---|
| 3064 | case CTC_SHA256wECDSA:
|
---|
| 3065 | algoSz = sizeof(sha256wECDSA_AlgoID);
|
---|
| 3066 | algoName = sha256wECDSA_AlgoID;
|
---|
| 3067 | break;
|
---|
| 3068 |
|
---|
| 3069 | case CTC_SHA384wECDSA:
|
---|
| 3070 | algoSz = sizeof(sha384wECDSA_AlgoID);
|
---|
| 3071 | algoName = sha384wECDSA_AlgoID;
|
---|
| 3072 | break;
|
---|
| 3073 |
|
---|
| 3074 | case CTC_SHA512wECDSA:
|
---|
| 3075 | algoSz = sizeof(sha512wECDSA_AlgoID);
|
---|
| 3076 | algoName = sha512wECDSA_AlgoID;
|
---|
| 3077 | break;
|
---|
| 3078 | #endif /* HAVE_ECC */
|
---|
| 3079 | default:
|
---|
| 3080 | WOLFSSL_MSG("Unknown Signature Algo");
|
---|
| 3081 | return 0;
|
---|
| 3082 | }
|
---|
| 3083 | }
|
---|
| 3084 | else if (type == keyType) { /* keyType */
|
---|
| 3085 | switch (algoOID) {
|
---|
| 3086 | #ifndef NO_RSA
|
---|
| 3087 | case RSAk:
|
---|
| 3088 | algoSz = sizeof(RSA_AlgoID);
|
---|
| 3089 | algoName = RSA_AlgoID;
|
---|
| 3090 | break;
|
---|
| 3091 | #endif /* NO_RSA */
|
---|
| 3092 | #ifdef HAVE_ECC
|
---|
| 3093 | case ECDSAk:
|
---|
| 3094 | algoSz = sizeof(ECC_AlgoID);
|
---|
| 3095 | algoName = ECC_AlgoID;
|
---|
| 3096 | tagSz = 0;
|
---|
| 3097 | break;
|
---|
| 3098 | #endif /* HAVE_ECC */
|
---|
| 3099 | default:
|
---|
| 3100 | WOLFSSL_MSG("Unknown Key Algo");
|
---|
| 3101 | return 0;
|
---|
| 3102 | }
|
---|
| 3103 | }
|
---|
| 3104 | else {
|
---|
| 3105 | WOLFSSL_MSG("Unknown Algo type");
|
---|
| 3106 | return 0;
|
---|
| 3107 | }
|
---|
| 3108 |
|
---|
| 3109 | idSz = SetLength(algoSz - tagSz, ID_Length); /* don't include tags */
|
---|
| 3110 | seqSz = SetSequence(idSz + algoSz + 1 + curveSz, seqArray);
|
---|
| 3111 | /* +1 for object id, curveID of curveSz follows for ecc */
|
---|
| 3112 | seqArray[seqSz++] = ASN_OBJECT_ID;
|
---|
| 3113 |
|
---|
| 3114 | XMEMCPY(output, seqArray, seqSz);
|
---|
| 3115 | XMEMCPY(output + seqSz, ID_Length, idSz);
|
---|
| 3116 | XMEMCPY(output + seqSz + idSz, algoName, algoSz);
|
---|
| 3117 |
|
---|
| 3118 | return seqSz + idSz + algoSz;
|
---|
| 3119 |
|
---|
| 3120 | }
|
---|
| 3121 |
|
---|
| 3122 |
|
---|
| 3123 | word32 wc_EncodeSignature(byte* out, const byte* digest, word32 digSz,
|
---|
| 3124 | int hashOID)
|
---|
| 3125 | {
|
---|
| 3126 | byte digArray[MAX_ENCODED_DIG_SZ];
|
---|
| 3127 | byte algoArray[MAX_ALGO_SZ];
|
---|
| 3128 | byte seqArray[MAX_SEQ_SZ];
|
---|
| 3129 | word32 encDigSz, algoSz, seqSz;
|
---|
| 3130 |
|
---|
| 3131 | encDigSz = SetDigest(digest, digSz, digArray);
|
---|
| 3132 | algoSz = SetAlgoID(hashOID, algoArray, hashType, 0);
|
---|
| 3133 | seqSz = SetSequence(encDigSz + algoSz, seqArray);
|
---|
| 3134 |
|
---|
| 3135 | XMEMCPY(out, seqArray, seqSz);
|
---|
| 3136 | XMEMCPY(out + seqSz, algoArray, algoSz);
|
---|
| 3137 | XMEMCPY(out + seqSz + algoSz, digArray, encDigSz);
|
---|
| 3138 |
|
---|
| 3139 | return encDigSz + algoSz + seqSz;
|
---|
| 3140 | }
|
---|
| 3141 |
|
---|
| 3142 |
|
---|
| 3143 | int wc_GetCTC_HashOID(int type)
|
---|
| 3144 | {
|
---|
| 3145 | switch (type) {
|
---|
| 3146 | #ifdef WOLFSSL_MD2
|
---|
| 3147 | case MD2:
|
---|
| 3148 | return MD2h;
|
---|
| 3149 | #endif
|
---|
| 3150 | #ifndef NO_MD5
|
---|
| 3151 | case MD5:
|
---|
| 3152 | return MD5h;
|
---|
| 3153 | #endif
|
---|
| 3154 | #ifndef NO_SHA
|
---|
| 3155 | case SHA:
|
---|
| 3156 | return SHAh;
|
---|
| 3157 | #endif
|
---|
| 3158 | #ifndef NO_SHA256
|
---|
| 3159 | case SHA256:
|
---|
| 3160 | return SHA256h;
|
---|
| 3161 | #endif
|
---|
| 3162 | #ifdef WOLFSSL_SHA384
|
---|
| 3163 | case SHA384:
|
---|
| 3164 | return SHA384h;
|
---|
| 3165 | #endif
|
---|
| 3166 | #ifdef WOLFSSL_SHA512
|
---|
| 3167 | case SHA512:
|
---|
| 3168 | return SHA512h;
|
---|
| 3169 | #endif
|
---|
| 3170 | default:
|
---|
| 3171 | return 0;
|
---|
| 3172 | };
|
---|
| 3173 | }
|
---|
| 3174 |
|
---|
| 3175 |
|
---|
| 3176 | /* return true (1) or false (0) for Confirmation */
|
---|
| 3177 | static int ConfirmSignature(const byte* buf, word32 bufSz,
|
---|
| 3178 | const byte* key, word32 keySz, word32 keyOID,
|
---|
| 3179 | const byte* sig, word32 sigSz, word32 sigOID,
|
---|
| 3180 | void* heap)
|
---|
| 3181 | {
|
---|
| 3182 | int typeH = 0, digestSz = 0, ret = 0;
|
---|
| 3183 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 3184 | byte* digest;
|
---|
| 3185 | #else
|
---|
| 3186 | byte digest[MAX_DIGEST_SIZE];
|
---|
| 3187 | #endif
|
---|
| 3188 |
|
---|
| 3189 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 3190 | digest = (byte*)XMALLOC(MAX_DIGEST_SIZE, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3191 | if (digest == NULL)
|
---|
| 3192 | return 0; /* not confirmed */
|
---|
| 3193 | #endif
|
---|
| 3194 |
|
---|
| 3195 | (void)key;
|
---|
| 3196 | (void)keySz;
|
---|
| 3197 | (void)sig;
|
---|
| 3198 | (void)sigSz;
|
---|
| 3199 | (void)heap;
|
---|
| 3200 |
|
---|
| 3201 | switch (sigOID) {
|
---|
| 3202 | #ifndef NO_MD5
|
---|
| 3203 | case CTC_MD5wRSA:
|
---|
| 3204 | if (wc_Md5Hash(buf, bufSz, digest) == 0) {
|
---|
| 3205 | typeH = MD5h;
|
---|
| 3206 | digestSz = MD5_DIGEST_SIZE;
|
---|
| 3207 | }
|
---|
| 3208 | break;
|
---|
| 3209 | #endif
|
---|
| 3210 | #if defined(WOLFSSL_MD2)
|
---|
| 3211 | case CTC_MD2wRSA:
|
---|
| 3212 | if (wc_Md2Hash(buf, bufSz, digest) == 0) {
|
---|
| 3213 | typeH = MD2h;
|
---|
| 3214 | digestSz = MD2_DIGEST_SIZE;
|
---|
| 3215 | }
|
---|
| 3216 | break;
|
---|
| 3217 | #endif
|
---|
| 3218 | #ifndef NO_SHA
|
---|
| 3219 | case CTC_SHAwRSA:
|
---|
| 3220 | case CTC_SHAwDSA:
|
---|
| 3221 | case CTC_SHAwECDSA:
|
---|
| 3222 | if (wc_ShaHash(buf, bufSz, digest) == 0) {
|
---|
| 3223 | typeH = SHAh;
|
---|
| 3224 | digestSz = SHA_DIGEST_SIZE;
|
---|
| 3225 | }
|
---|
| 3226 | break;
|
---|
| 3227 | #endif
|
---|
| 3228 | #ifndef NO_SHA256
|
---|
| 3229 | case CTC_SHA256wRSA:
|
---|
| 3230 | case CTC_SHA256wECDSA:
|
---|
| 3231 | if (wc_Sha256Hash(buf, bufSz, digest) == 0) {
|
---|
| 3232 | typeH = SHA256h;
|
---|
| 3233 | digestSz = SHA256_DIGEST_SIZE;
|
---|
| 3234 | }
|
---|
| 3235 | break;
|
---|
| 3236 | #endif
|
---|
| 3237 | #ifdef WOLFSSL_SHA512
|
---|
| 3238 | case CTC_SHA512wRSA:
|
---|
| 3239 | case CTC_SHA512wECDSA:
|
---|
| 3240 | if (wc_Sha512Hash(buf, bufSz, digest) == 0) {
|
---|
| 3241 | typeH = SHA512h;
|
---|
| 3242 | digestSz = SHA512_DIGEST_SIZE;
|
---|
| 3243 | }
|
---|
| 3244 | break;
|
---|
| 3245 | #endif
|
---|
| 3246 | #ifdef WOLFSSL_SHA384
|
---|
| 3247 | case CTC_SHA384wRSA:
|
---|
| 3248 | case CTC_SHA384wECDSA:
|
---|
| 3249 | if (wc_Sha384Hash(buf, bufSz, digest) == 0) {
|
---|
| 3250 | typeH = SHA384h;
|
---|
| 3251 | digestSz = SHA384_DIGEST_SIZE;
|
---|
| 3252 | }
|
---|
| 3253 | break;
|
---|
| 3254 | #endif
|
---|
| 3255 | default:
|
---|
| 3256 | WOLFSSL_MSG("Verify Signautre has unsupported type");
|
---|
| 3257 | }
|
---|
| 3258 |
|
---|
| 3259 | if (typeH == 0) {
|
---|
| 3260 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 3261 | XFREE(digest, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3262 | #endif
|
---|
| 3263 | return 0; /* not confirmed */
|
---|
| 3264 | }
|
---|
| 3265 |
|
---|
| 3266 | switch (keyOID) {
|
---|
| 3267 | #ifndef NO_RSA
|
---|
| 3268 | case RSAk:
|
---|
| 3269 | {
|
---|
| 3270 | word32 idx = 0;
|
---|
| 3271 | int encodedSigSz, verifySz;
|
---|
| 3272 | byte* out;
|
---|
| 3273 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 3274 | RsaKey* pubKey;
|
---|
| 3275 | byte* plain;
|
---|
| 3276 | byte* encodedSig;
|
---|
| 3277 | #else
|
---|
| 3278 | RsaKey pubKey[1];
|
---|
| 3279 | byte plain[MAX_ENCODED_SIG_SZ];
|
---|
| 3280 | byte encodedSig[MAX_ENCODED_SIG_SZ];
|
---|
| 3281 | #endif
|
---|
| 3282 |
|
---|
| 3283 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 3284 | pubKey = (RsaKey*)XMALLOC(sizeof(RsaKey), NULL,
|
---|
| 3285 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3286 | plain = (byte*)XMALLOC(MAX_ENCODED_SIG_SZ, NULL,
|
---|
| 3287 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3288 | encodedSig = (byte*)XMALLOC(MAX_ENCODED_SIG_SZ, NULL,
|
---|
| 3289 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3290 |
|
---|
| 3291 | if (pubKey == NULL || plain == NULL || encodedSig == NULL) {
|
---|
| 3292 | WOLFSSL_MSG("Failed to allocate memory at ConfirmSignature");
|
---|
| 3293 |
|
---|
| 3294 | if (pubKey)
|
---|
| 3295 | XFREE(pubKey, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3296 | if (plain)
|
---|
| 3297 | XFREE(plain, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3298 | if (encodedSig)
|
---|
| 3299 | XFREE(encodedSig, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3300 |
|
---|
| 3301 | break; /* not confirmed */
|
---|
| 3302 | }
|
---|
| 3303 | #endif
|
---|
| 3304 |
|
---|
| 3305 | if (sigSz > MAX_ENCODED_SIG_SZ) {
|
---|
| 3306 | WOLFSSL_MSG("Verify Signautre is too big");
|
---|
| 3307 | }
|
---|
| 3308 | else if (wc_InitRsaKey(pubKey, heap) != 0) {
|
---|
| 3309 | WOLFSSL_MSG("InitRsaKey failed");
|
---|
| 3310 | }
|
---|
| 3311 | else if (wc_RsaPublicKeyDecode(key, &idx, pubKey, keySz) < 0) {
|
---|
| 3312 | WOLFSSL_MSG("ASN Key decode error RSA");
|
---|
| 3313 | }
|
---|
| 3314 | else {
|
---|
| 3315 | XMEMCPY(plain, sig, sigSz);
|
---|
| 3316 |
|
---|
| 3317 | if ((verifySz = wc_RsaSSL_VerifyInline(plain, sigSz, &out,
|
---|
| 3318 | pubKey)) < 0) {
|
---|
| 3319 | WOLFSSL_MSG("Rsa SSL verify error");
|
---|
| 3320 | }
|
---|
| 3321 | else {
|
---|
| 3322 | /* make sure we're right justified */
|
---|
| 3323 | encodedSigSz =
|
---|
| 3324 | wc_EncodeSignature(encodedSig, digest, digestSz, typeH);
|
---|
| 3325 | if (encodedSigSz != verifySz ||
|
---|
| 3326 | XMEMCMP(out, encodedSig, encodedSigSz) != 0) {
|
---|
| 3327 | WOLFSSL_MSG("Rsa SSL verify match encode error");
|
---|
| 3328 | }
|
---|
| 3329 | else
|
---|
| 3330 | ret = 1; /* match */
|
---|
| 3331 |
|
---|
| 3332 | #ifdef WOLFSSL_DEBUG_ENCODING
|
---|
| 3333 | {
|
---|
| 3334 | int x;
|
---|
| 3335 |
|
---|
| 3336 | printf("wolfssl encodedSig:\n");
|
---|
| 3337 |
|
---|
| 3338 | for (x = 0; x < encodedSigSz; x++) {
|
---|
| 3339 | printf("%02x ", encodedSig[x]);
|
---|
| 3340 | if ( (x % 16) == 15)
|
---|
| 3341 | printf("\n");
|
---|
| 3342 | }
|
---|
| 3343 |
|
---|
| 3344 | printf("\n");
|
---|
| 3345 | printf("actual digest:\n");
|
---|
| 3346 |
|
---|
| 3347 | for (x = 0; x < verifySz; x++) {
|
---|
| 3348 | printf("%02x ", out[x]);
|
---|
| 3349 | if ( (x % 16) == 15)
|
---|
| 3350 | printf("\n");
|
---|
| 3351 | }
|
---|
| 3352 |
|
---|
| 3353 | printf("\n");
|
---|
| 3354 | }
|
---|
| 3355 | #endif /* WOLFSSL_DEBUG_ENCODING */
|
---|
| 3356 |
|
---|
| 3357 | }
|
---|
| 3358 |
|
---|
| 3359 | }
|
---|
| 3360 |
|
---|
| 3361 | wc_FreeRsaKey(pubKey);
|
---|
| 3362 |
|
---|
| 3363 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 3364 | XFREE(pubKey, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3365 | XFREE(plain, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3366 | XFREE(encodedSig, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3367 | #endif
|
---|
| 3368 | break;
|
---|
| 3369 | }
|
---|
| 3370 |
|
---|
| 3371 | #endif /* NO_RSA */
|
---|
| 3372 | #ifdef HAVE_ECC
|
---|
| 3373 | case ECDSAk:
|
---|
| 3374 | {
|
---|
| 3375 | int verify = 0;
|
---|
| 3376 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 3377 | ecc_key* pubKey;
|
---|
| 3378 | #else
|
---|
| 3379 | ecc_key pubKey[1];
|
---|
| 3380 | #endif
|
---|
| 3381 |
|
---|
| 3382 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 3383 | pubKey = (ecc_key*)XMALLOC(sizeof(ecc_key), NULL,
|
---|
| 3384 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3385 | if (pubKey == NULL) {
|
---|
| 3386 | WOLFSSL_MSG("Failed to allocate pubKey");
|
---|
| 3387 | break; /* not confirmed */
|
---|
| 3388 | }
|
---|
| 3389 | #endif
|
---|
| 3390 |
|
---|
| 3391 | if (wc_ecc_init(pubKey) < 0) {
|
---|
| 3392 | WOLFSSL_MSG("Failed to initialize key");
|
---|
| 3393 | break; /* not confirmed */
|
---|
| 3394 | }
|
---|
| 3395 | if (wc_ecc_import_x963(key, keySz, pubKey) < 0) {
|
---|
| 3396 | WOLFSSL_MSG("ASN Key import error ECC");
|
---|
| 3397 | }
|
---|
| 3398 | else {
|
---|
| 3399 | if (wc_ecc_verify_hash(sig, sigSz, digest, digestSz, &verify,
|
---|
| 3400 | pubKey) != 0) {
|
---|
| 3401 | WOLFSSL_MSG("ECC verify hash error");
|
---|
| 3402 | }
|
---|
| 3403 | else if (1 != verify) {
|
---|
| 3404 | WOLFSSL_MSG("ECC Verify didn't match");
|
---|
| 3405 | } else
|
---|
| 3406 | ret = 1; /* match */
|
---|
| 3407 |
|
---|
| 3408 | }
|
---|
| 3409 | wc_ecc_free(pubKey);
|
---|
| 3410 |
|
---|
| 3411 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 3412 | XFREE(pubKey, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3413 | #endif
|
---|
| 3414 | break;
|
---|
| 3415 | }
|
---|
| 3416 | #endif /* HAVE_ECC */
|
---|
| 3417 | default:
|
---|
| 3418 | WOLFSSL_MSG("Verify Key type unknown");
|
---|
| 3419 | }
|
---|
| 3420 |
|
---|
| 3421 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 3422 | XFREE(digest, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 3423 | #endif
|
---|
| 3424 |
|
---|
| 3425 | return ret;
|
---|
| 3426 | }
|
---|
| 3427 |
|
---|
| 3428 |
|
---|
| 3429 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 3430 |
|
---|
| 3431 | static int MatchBaseName(int type, const char* name, int nameSz,
|
---|
| 3432 | const char* base, int baseSz)
|
---|
| 3433 | {
|
---|
| 3434 | if (base == NULL || baseSz <= 0 || name == NULL || nameSz <= 0 ||
|
---|
| 3435 | name[0] == '.' || nameSz < baseSz ||
|
---|
| 3436 | (type != ASN_RFC822_TYPE && type != ASN_DNS_TYPE))
|
---|
| 3437 | return 0;
|
---|
| 3438 |
|
---|
| 3439 | /* If an email type, handle special cases where the base is only
|
---|
| 3440 | * a domain, or is an email address itself. */
|
---|
| 3441 | if (type == ASN_RFC822_TYPE) {
|
---|
| 3442 | const char* p = NULL;
|
---|
| 3443 | int count = 0;
|
---|
| 3444 |
|
---|
| 3445 | if (base[0] != '.') {
|
---|
| 3446 | p = base;
|
---|
| 3447 | count = 0;
|
---|
| 3448 |
|
---|
| 3449 | /* find the '@' in the base */
|
---|
| 3450 | while (*p != '@' && count < baseSz) {
|
---|
| 3451 | count++;
|
---|
| 3452 | p++;
|
---|
| 3453 | }
|
---|
| 3454 |
|
---|
| 3455 | /* No '@' in base, reset p to NULL */
|
---|
| 3456 | if (count >= baseSz)
|
---|
| 3457 | p = NULL;
|
---|
| 3458 | }
|
---|
| 3459 |
|
---|
| 3460 | if (p == NULL) {
|
---|
| 3461 | /* Base isn't an email address, it is a domain name,
|
---|
| 3462 | * wind the name forward one character past its '@'. */
|
---|
| 3463 | p = name;
|
---|
| 3464 | count = 0;
|
---|
| 3465 | while (*p != '@' && count < baseSz) {
|
---|
| 3466 | count++;
|
---|
| 3467 | p++;
|
---|
| 3468 | }
|
---|
| 3469 |
|
---|
| 3470 | if (count < baseSz && *p == '@') {
|
---|
| 3471 | name = p + 1;
|
---|
| 3472 | nameSz -= count + 1;
|
---|
| 3473 | }
|
---|
| 3474 | }
|
---|
| 3475 | }
|
---|
| 3476 |
|
---|
| 3477 | if ((type == ASN_DNS_TYPE || type == ASN_RFC822_TYPE) && base[0] == '.') {
|
---|
| 3478 | int szAdjust = nameSz - baseSz;
|
---|
| 3479 | name += szAdjust;
|
---|
| 3480 | nameSz -= szAdjust;
|
---|
| 3481 | }
|
---|
| 3482 |
|
---|
| 3483 | while (nameSz > 0) {
|
---|
| 3484 | if (XTOLOWER((unsigned char)*name++) !=
|
---|
| 3485 | XTOLOWER((unsigned char)*base++))
|
---|
| 3486 | return 0;
|
---|
| 3487 | nameSz--;
|
---|
| 3488 | }
|
---|
| 3489 |
|
---|
| 3490 | return 1;
|
---|
| 3491 | }
|
---|
| 3492 |
|
---|
| 3493 |
|
---|
| 3494 | static int ConfirmNameConstraints(Signer* signer, DecodedCert* cert)
|
---|
| 3495 | {
|
---|
| 3496 | if (signer == NULL || cert == NULL)
|
---|
| 3497 | return 0;
|
---|
| 3498 |
|
---|
| 3499 | /* Check against the excluded list */
|
---|
| 3500 | if (signer->excludedNames) {
|
---|
| 3501 | Base_entry* base = signer->excludedNames;
|
---|
| 3502 |
|
---|
| 3503 | while (base != NULL) {
|
---|
| 3504 | if (base->type == ASN_DNS_TYPE) {
|
---|
| 3505 | DNS_entry* name = cert->altNames;
|
---|
| 3506 | while (name != NULL) {
|
---|
| 3507 | if (MatchBaseName(ASN_DNS_TYPE,
|
---|
| 3508 | name->name, (int)XSTRLEN(name->name),
|
---|
| 3509 | base->name, base->nameSz))
|
---|
| 3510 | return 0;
|
---|
| 3511 | name = name->next;
|
---|
| 3512 | }
|
---|
| 3513 | }
|
---|
| 3514 | else if (base->type == ASN_RFC822_TYPE) {
|
---|
| 3515 | DNS_entry* name = cert->altEmailNames;
|
---|
| 3516 | while (name != NULL) {
|
---|
| 3517 | if (MatchBaseName(ASN_RFC822_TYPE,
|
---|
| 3518 | name->name, (int)XSTRLEN(name->name),
|
---|
| 3519 | base->name, base->nameSz))
|
---|
| 3520 | return 0;
|
---|
| 3521 |
|
---|
| 3522 | name = name->next;
|
---|
| 3523 | }
|
---|
| 3524 | }
|
---|
| 3525 | else if (base->type == ASN_DIR_TYPE) {
|
---|
| 3526 | if (cert->subjectRawLen == base->nameSz &&
|
---|
| 3527 | XMEMCMP(cert->subjectRaw, base->name, base->nameSz) == 0) {
|
---|
| 3528 |
|
---|
| 3529 | return 0;
|
---|
| 3530 | }
|
---|
| 3531 | }
|
---|
| 3532 | base = base->next;
|
---|
| 3533 | }
|
---|
| 3534 | }
|
---|
| 3535 |
|
---|
| 3536 | /* Check against the permitted list */
|
---|
| 3537 | if (signer->permittedNames != NULL) {
|
---|
| 3538 | int needDns = 0;
|
---|
| 3539 | int matchDns = 0;
|
---|
| 3540 | int needEmail = 0;
|
---|
| 3541 | int matchEmail = 0;
|
---|
| 3542 | int needDir = 0;
|
---|
| 3543 | int matchDir = 0;
|
---|
| 3544 | Base_entry* base = signer->permittedNames;
|
---|
| 3545 |
|
---|
| 3546 | while (base != NULL) {
|
---|
| 3547 | if (base->type == ASN_DNS_TYPE) {
|
---|
| 3548 | DNS_entry* name = cert->altNames;
|
---|
| 3549 |
|
---|
| 3550 | if (name != NULL)
|
---|
| 3551 | needDns = 1;
|
---|
| 3552 |
|
---|
| 3553 | while (name != NULL) {
|
---|
| 3554 | matchDns = MatchBaseName(ASN_DNS_TYPE,
|
---|
| 3555 | name->name, (int)XSTRLEN(name->name),
|
---|
| 3556 | base->name, base->nameSz);
|
---|
| 3557 | name = name->next;
|
---|
| 3558 | }
|
---|
| 3559 | }
|
---|
| 3560 | else if (base->type == ASN_RFC822_TYPE) {
|
---|
| 3561 | DNS_entry* name = cert->altEmailNames;
|
---|
| 3562 |
|
---|
| 3563 | if (name != NULL)
|
---|
| 3564 | needEmail = 1;
|
---|
| 3565 |
|
---|
| 3566 | while (name != NULL) {
|
---|
| 3567 | matchEmail = MatchBaseName(ASN_DNS_TYPE,
|
---|
| 3568 | name->name, (int)XSTRLEN(name->name),
|
---|
| 3569 | base->name, base->nameSz);
|
---|
| 3570 | name = name->next;
|
---|
| 3571 | }
|
---|
| 3572 | }
|
---|
| 3573 | else if (base->type == ASN_DIR_TYPE) {
|
---|
| 3574 | needDir = 1;
|
---|
| 3575 | if (cert->subjectRaw != NULL &&
|
---|
| 3576 | cert->subjectRawLen == base->nameSz &&
|
---|
| 3577 | XMEMCMP(cert->subjectRaw, base->name, base->nameSz) == 0) {
|
---|
| 3578 |
|
---|
| 3579 | matchDir = 1;
|
---|
| 3580 | }
|
---|
| 3581 | }
|
---|
| 3582 | base = base->next;
|
---|
| 3583 | }
|
---|
| 3584 |
|
---|
| 3585 | if ((needDns && !matchDns) || (needEmail && !matchEmail) ||
|
---|
| 3586 | (needDir && !matchDir)) {
|
---|
| 3587 |
|
---|
| 3588 | return 0;
|
---|
| 3589 | }
|
---|
| 3590 | }
|
---|
| 3591 |
|
---|
| 3592 | return 1;
|
---|
| 3593 | }
|
---|
| 3594 |
|
---|
| 3595 | #endif /* IGNORE_NAME_CONSTRAINTS */
|
---|
| 3596 |
|
---|
| 3597 |
|
---|
| 3598 | static int DecodeAltNames(byte* input, int sz, DecodedCert* cert)
|
---|
| 3599 | {
|
---|
| 3600 | word32 idx = 0;
|
---|
| 3601 | int length = 0;
|
---|
| 3602 |
|
---|
| 3603 | WOLFSSL_ENTER("DecodeAltNames");
|
---|
| 3604 |
|
---|
| 3605 | if (GetSequence(input, &idx, &length, sz) < 0) {
|
---|
| 3606 | WOLFSSL_MSG("\tBad Sequence");
|
---|
| 3607 | return ASN_PARSE_E;
|
---|
| 3608 | }
|
---|
| 3609 |
|
---|
| 3610 | cert->weOwnAltNames = 1;
|
---|
| 3611 |
|
---|
| 3612 | while (length > 0) {
|
---|
| 3613 | byte b = input[idx++];
|
---|
| 3614 |
|
---|
| 3615 | length--;
|
---|
| 3616 |
|
---|
| 3617 | /* Save DNS Type names in the altNames list. */
|
---|
| 3618 | /* Save Other Type names in the cert's OidMap */
|
---|
| 3619 | if (b == (ASN_CONTEXT_SPECIFIC | ASN_DNS_TYPE)) {
|
---|
| 3620 | DNS_entry* dnsEntry;
|
---|
| 3621 | int strLen;
|
---|
| 3622 | word32 lenStartIdx = idx;
|
---|
| 3623 |
|
---|
| 3624 | if (GetLength(input, &idx, &strLen, sz) < 0) {
|
---|
| 3625 | WOLFSSL_MSG("\tfail: str length");
|
---|
| 3626 | return ASN_PARSE_E;
|
---|
| 3627 | }
|
---|
| 3628 | length -= (idx - lenStartIdx);
|
---|
| 3629 |
|
---|
| 3630 | dnsEntry = (DNS_entry*)XMALLOC(sizeof(DNS_entry), cert->heap,
|
---|
| 3631 | DYNAMIC_TYPE_ALTNAME);
|
---|
| 3632 | if (dnsEntry == NULL) {
|
---|
| 3633 | WOLFSSL_MSG("\tOut of Memory");
|
---|
| 3634 | return ASN_PARSE_E;
|
---|
| 3635 | }
|
---|
| 3636 |
|
---|
| 3637 | dnsEntry->name = (char*)XMALLOC(strLen + 1, cert->heap,
|
---|
| 3638 | DYNAMIC_TYPE_ALTNAME);
|
---|
| 3639 | if (dnsEntry->name == NULL) {
|
---|
| 3640 | WOLFSSL_MSG("\tOut of Memory");
|
---|
| 3641 | XFREE(dnsEntry, cert->heap, DYNAMIC_TYPE_ALTNAME);
|
---|
| 3642 | return ASN_PARSE_E;
|
---|
| 3643 | }
|
---|
| 3644 |
|
---|
| 3645 | XMEMCPY(dnsEntry->name, &input[idx], strLen);
|
---|
| 3646 | dnsEntry->name[strLen] = '\0';
|
---|
| 3647 |
|
---|
| 3648 | dnsEntry->next = cert->altNames;
|
---|
| 3649 | cert->altNames = dnsEntry;
|
---|
| 3650 |
|
---|
| 3651 | length -= strLen;
|
---|
| 3652 | idx += strLen;
|
---|
| 3653 | }
|
---|
| 3654 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 3655 | else if (b == (ASN_CONTEXT_SPECIFIC | ASN_RFC822_TYPE)) {
|
---|
| 3656 | DNS_entry* emailEntry;
|
---|
| 3657 | int strLen;
|
---|
| 3658 | word32 lenStartIdx = idx;
|
---|
| 3659 |
|
---|
| 3660 | if (GetLength(input, &idx, &strLen, sz) < 0) {
|
---|
| 3661 | WOLFSSL_MSG("\tfail: str length");
|
---|
| 3662 | return ASN_PARSE_E;
|
---|
| 3663 | }
|
---|
| 3664 | length -= (idx - lenStartIdx);
|
---|
| 3665 |
|
---|
| 3666 | emailEntry = (DNS_entry*)XMALLOC(sizeof(DNS_entry), cert->heap,
|
---|
| 3667 | DYNAMIC_TYPE_ALTNAME);
|
---|
| 3668 | if (emailEntry == NULL) {
|
---|
| 3669 | WOLFSSL_MSG("\tOut of Memory");
|
---|
| 3670 | return ASN_PARSE_E;
|
---|
| 3671 | }
|
---|
| 3672 |
|
---|
| 3673 | emailEntry->name = (char*)XMALLOC(strLen + 1, cert->heap,
|
---|
| 3674 | DYNAMIC_TYPE_ALTNAME);
|
---|
| 3675 | if (emailEntry->name == NULL) {
|
---|
| 3676 | WOLFSSL_MSG("\tOut of Memory");
|
---|
| 3677 | XFREE(emailEntry, cert->heap, DYNAMIC_TYPE_ALTNAME);
|
---|
| 3678 | return ASN_PARSE_E;
|
---|
| 3679 | }
|
---|
| 3680 |
|
---|
| 3681 | XMEMCPY(emailEntry->name, &input[idx], strLen);
|
---|
| 3682 | emailEntry->name[strLen] = '\0';
|
---|
| 3683 |
|
---|
| 3684 | emailEntry->next = cert->altEmailNames;
|
---|
| 3685 | cert->altEmailNames = emailEntry;
|
---|
| 3686 |
|
---|
| 3687 | length -= strLen;
|
---|
| 3688 | idx += strLen;
|
---|
| 3689 | }
|
---|
| 3690 | #endif /* IGNORE_NAME_CONSTRAINTS */
|
---|
| 3691 | #ifdef WOLFSSL_SEP
|
---|
| 3692 | else if (b == (ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED | ASN_OTHER_TYPE))
|
---|
| 3693 | {
|
---|
| 3694 | int strLen;
|
---|
| 3695 | word32 lenStartIdx = idx;
|
---|
| 3696 | word32 oid = 0;
|
---|
| 3697 |
|
---|
| 3698 | if (GetLength(input, &idx, &strLen, sz) < 0) {
|
---|
| 3699 | WOLFSSL_MSG("\tfail: other name length");
|
---|
| 3700 | return ASN_PARSE_E;
|
---|
| 3701 | }
|
---|
| 3702 | /* Consume the rest of this sequence. */
|
---|
| 3703 | length -= (strLen + idx - lenStartIdx);
|
---|
| 3704 |
|
---|
| 3705 | if (GetObjectId(input, &idx, &oid, sz) < 0) {
|
---|
| 3706 | WOLFSSL_MSG("\tbad OID");
|
---|
| 3707 | return ASN_PARSE_E;
|
---|
| 3708 | }
|
---|
| 3709 |
|
---|
| 3710 | if (oid != HW_NAME_OID) {
|
---|
| 3711 | WOLFSSL_MSG("\tincorrect OID");
|
---|
| 3712 | return ASN_PARSE_E;
|
---|
| 3713 | }
|
---|
| 3714 |
|
---|
| 3715 | if (input[idx++] != (ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED)) {
|
---|
| 3716 | WOLFSSL_MSG("\twrong type");
|
---|
| 3717 | return ASN_PARSE_E;
|
---|
| 3718 | }
|
---|
| 3719 |
|
---|
| 3720 | if (GetLength(input, &idx, &strLen, sz) < 0) {
|
---|
| 3721 | WOLFSSL_MSG("\tfail: str len");
|
---|
| 3722 | return ASN_PARSE_E;
|
---|
| 3723 | }
|
---|
| 3724 |
|
---|
| 3725 | if (GetSequence(input, &idx, &strLen, sz) < 0) {
|
---|
| 3726 | WOLFSSL_MSG("\tBad Sequence");
|
---|
| 3727 | return ASN_PARSE_E;
|
---|
| 3728 | }
|
---|
| 3729 |
|
---|
| 3730 | if (input[idx++] != ASN_OBJECT_ID) {
|
---|
| 3731 | WOLFSSL_MSG("\texpected OID");
|
---|
| 3732 | return ASN_PARSE_E;
|
---|
| 3733 | }
|
---|
| 3734 |
|
---|
| 3735 | if (GetLength(input, &idx, &strLen, sz) < 0) {
|
---|
| 3736 | WOLFSSL_MSG("\tfailed: str len");
|
---|
| 3737 | return ASN_PARSE_E;
|
---|
| 3738 | }
|
---|
| 3739 |
|
---|
| 3740 | cert->hwType = (byte*)XMALLOC(strLen, cert->heap, 0);
|
---|
| 3741 | if (cert->hwType == NULL) {
|
---|
| 3742 | WOLFSSL_MSG("\tOut of Memory");
|
---|
| 3743 | return MEMORY_E;
|
---|
| 3744 | }
|
---|
| 3745 |
|
---|
| 3746 | XMEMCPY(cert->hwType, &input[idx], strLen);
|
---|
| 3747 | cert->hwTypeSz = strLen;
|
---|
| 3748 | idx += strLen;
|
---|
| 3749 |
|
---|
| 3750 | if (input[idx++] != ASN_OCTET_STRING) {
|
---|
| 3751 | WOLFSSL_MSG("\texpected Octet String");
|
---|
| 3752 | return ASN_PARSE_E;
|
---|
| 3753 | }
|
---|
| 3754 |
|
---|
| 3755 | if (GetLength(input, &idx, &strLen, sz) < 0) {
|
---|
| 3756 | WOLFSSL_MSG("\tfailed: str len");
|
---|
| 3757 | return ASN_PARSE_E;
|
---|
| 3758 | }
|
---|
| 3759 |
|
---|
| 3760 | cert->hwSerialNum = (byte*)XMALLOC(strLen + 1, cert->heap, 0);
|
---|
| 3761 | if (cert->hwSerialNum == NULL) {
|
---|
| 3762 | WOLFSSL_MSG("\tOut of Memory");
|
---|
| 3763 | return MEMORY_E;
|
---|
| 3764 | }
|
---|
| 3765 |
|
---|
| 3766 | XMEMCPY(cert->hwSerialNum, &input[idx], strLen);
|
---|
| 3767 | cert->hwSerialNum[strLen] = '\0';
|
---|
| 3768 | cert->hwSerialNumSz = strLen;
|
---|
| 3769 | idx += strLen;
|
---|
| 3770 | }
|
---|
| 3771 | #endif /* WOLFSSL_SEP */
|
---|
| 3772 | else {
|
---|
| 3773 | int strLen;
|
---|
| 3774 | word32 lenStartIdx = idx;
|
---|
| 3775 |
|
---|
| 3776 | WOLFSSL_MSG("\tUnsupported name type, skipping");
|
---|
| 3777 |
|
---|
| 3778 | if (GetLength(input, &idx, &strLen, sz) < 0) {
|
---|
| 3779 | WOLFSSL_MSG("\tfail: unsupported name length");
|
---|
| 3780 | return ASN_PARSE_E;
|
---|
| 3781 | }
|
---|
| 3782 | length -= (strLen + idx - lenStartIdx);
|
---|
| 3783 | idx += strLen;
|
---|
| 3784 | }
|
---|
| 3785 | }
|
---|
| 3786 | return 0;
|
---|
| 3787 | }
|
---|
| 3788 |
|
---|
| 3789 |
|
---|
| 3790 | static int DecodeBasicCaConstraint(byte* input, int sz, DecodedCert* cert)
|
---|
| 3791 | {
|
---|
| 3792 | word32 idx = 0;
|
---|
| 3793 | int length = 0;
|
---|
| 3794 |
|
---|
| 3795 | WOLFSSL_ENTER("DecodeBasicCaConstraint");
|
---|
| 3796 | if (GetSequence(input, &idx, &length, sz) < 0) {
|
---|
| 3797 | WOLFSSL_MSG("\tfail: bad SEQUENCE");
|
---|
| 3798 | return ASN_PARSE_E;
|
---|
| 3799 | }
|
---|
| 3800 |
|
---|
| 3801 | if (length == 0)
|
---|
| 3802 | return 0;
|
---|
| 3803 |
|
---|
| 3804 | /* If the basic ca constraint is false, this extension may be named, but
|
---|
| 3805 | * left empty. So, if the length is 0, just return. */
|
---|
| 3806 |
|
---|
| 3807 | if (input[idx++] != ASN_BOOLEAN)
|
---|
| 3808 | {
|
---|
| 3809 | WOLFSSL_MSG("\tfail: constraint not BOOLEAN");
|
---|
| 3810 | return ASN_PARSE_E;
|
---|
| 3811 | }
|
---|
| 3812 |
|
---|
| 3813 | if (GetLength(input, &idx, &length, sz) < 0)
|
---|
| 3814 | {
|
---|
| 3815 | WOLFSSL_MSG("\tfail: length");
|
---|
| 3816 | return ASN_PARSE_E;
|
---|
| 3817 | }
|
---|
| 3818 |
|
---|
| 3819 | if (input[idx++])
|
---|
| 3820 | cert->isCA = 1;
|
---|
| 3821 |
|
---|
| 3822 | #ifdef OPENSSL_EXTRA
|
---|
| 3823 | /* If there isn't any more data, return. */
|
---|
| 3824 | if (idx >= (word32)sz)
|
---|
| 3825 | return 0;
|
---|
| 3826 |
|
---|
| 3827 | /* Anything left should be the optional pathlength */
|
---|
| 3828 | if (input[idx++] != ASN_INTEGER) {
|
---|
| 3829 | WOLFSSL_MSG("\tfail: pathlen not INTEGER");
|
---|
| 3830 | return ASN_PARSE_E;
|
---|
| 3831 | }
|
---|
| 3832 |
|
---|
| 3833 | if (input[idx++] != 1) {
|
---|
| 3834 | WOLFSSL_MSG("\tfail: pathlen too long");
|
---|
| 3835 | return ASN_PARSE_E;
|
---|
| 3836 | }
|
---|
| 3837 |
|
---|
| 3838 | cert->pathLength = input[idx];
|
---|
| 3839 | cert->extBasicConstPlSet = 1;
|
---|
| 3840 | #endif /* OPENSSL_EXTRA */
|
---|
| 3841 |
|
---|
| 3842 | return 0;
|
---|
| 3843 | }
|
---|
| 3844 |
|
---|
| 3845 |
|
---|
| 3846 | #define CRLDP_FULL_NAME 0
|
---|
| 3847 | /* From RFC3280 SS4.2.1.14, Distribution Point Name*/
|
---|
| 3848 | #define GENERALNAME_URI 6
|
---|
| 3849 | /* From RFC3280 SS4.2.1.7, GeneralName */
|
---|
| 3850 |
|
---|
| 3851 | static int DecodeCrlDist(byte* input, int sz, DecodedCert* cert)
|
---|
| 3852 | {
|
---|
| 3853 | word32 idx = 0;
|
---|
| 3854 | int length = 0;
|
---|
| 3855 |
|
---|
| 3856 | WOLFSSL_ENTER("DecodeCrlDist");
|
---|
| 3857 |
|
---|
| 3858 | /* Unwrap the list of Distribution Points*/
|
---|
| 3859 | if (GetSequence(input, &idx, &length, sz) < 0)
|
---|
| 3860 | return ASN_PARSE_E;
|
---|
| 3861 |
|
---|
| 3862 | /* Unwrap a single Distribution Point */
|
---|
| 3863 | if (GetSequence(input, &idx, &length, sz) < 0)
|
---|
| 3864 | return ASN_PARSE_E;
|
---|
| 3865 |
|
---|
| 3866 | /* The Distribution Point has three explicit optional members
|
---|
| 3867 | * First check for a DistributionPointName
|
---|
| 3868 | */
|
---|
| 3869 | if (input[idx] == (ASN_CONSTRUCTED | ASN_CONTEXT_SPECIFIC | 0))
|
---|
| 3870 | {
|
---|
| 3871 | idx++;
|
---|
| 3872 | if (GetLength(input, &idx, &length, sz) < 0)
|
---|
| 3873 | return ASN_PARSE_E;
|
---|
| 3874 |
|
---|
| 3875 | if (input[idx] ==
|
---|
| 3876 | (ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED | CRLDP_FULL_NAME))
|
---|
| 3877 | {
|
---|
| 3878 | idx++;
|
---|
| 3879 | if (GetLength(input, &idx, &length, sz) < 0)
|
---|
| 3880 | return ASN_PARSE_E;
|
---|
| 3881 |
|
---|
| 3882 | if (input[idx] == (ASN_CONTEXT_SPECIFIC | GENERALNAME_URI))
|
---|
| 3883 | {
|
---|
| 3884 | idx++;
|
---|
| 3885 | if (GetLength(input, &idx, &length, sz) < 0)
|
---|
| 3886 | return ASN_PARSE_E;
|
---|
| 3887 |
|
---|
| 3888 | cert->extCrlInfoSz = length;
|
---|
| 3889 | cert->extCrlInfo = input + idx;
|
---|
| 3890 | idx += length;
|
---|
| 3891 | }
|
---|
| 3892 | else
|
---|
| 3893 | /* This isn't a URI, skip it. */
|
---|
| 3894 | idx += length;
|
---|
| 3895 | }
|
---|
| 3896 | else
|
---|
| 3897 | /* This isn't a FULLNAME, skip it. */
|
---|
| 3898 | idx += length;
|
---|
| 3899 | }
|
---|
| 3900 |
|
---|
| 3901 | /* Check for reasonFlags */
|
---|
| 3902 | if (idx < (word32)sz &&
|
---|
| 3903 | input[idx] == (ASN_CONSTRUCTED | ASN_CONTEXT_SPECIFIC | 1))
|
---|
| 3904 | {
|
---|
| 3905 | idx++;
|
---|
| 3906 | if (GetLength(input, &idx, &length, sz) < 0)
|
---|
| 3907 | return ASN_PARSE_E;
|
---|
| 3908 | idx += length;
|
---|
| 3909 | }
|
---|
| 3910 |
|
---|
| 3911 | /* Check for cRLIssuer */
|
---|
| 3912 | if (idx < (word32)sz &&
|
---|
| 3913 | input[idx] == (ASN_CONSTRUCTED | ASN_CONTEXT_SPECIFIC | 2))
|
---|
| 3914 | {
|
---|
| 3915 | idx++;
|
---|
| 3916 | if (GetLength(input, &idx, &length, sz) < 0)
|
---|
| 3917 | return ASN_PARSE_E;
|
---|
| 3918 | idx += length;
|
---|
| 3919 | }
|
---|
| 3920 |
|
---|
| 3921 | if (idx < (word32)sz)
|
---|
| 3922 | {
|
---|
| 3923 | WOLFSSL_MSG("\tThere are more CRL Distribution Point records, "
|
---|
| 3924 | "but we only use the first one.");
|
---|
| 3925 | }
|
---|
| 3926 |
|
---|
| 3927 | return 0;
|
---|
| 3928 | }
|
---|
| 3929 |
|
---|
| 3930 |
|
---|
| 3931 | static int DecodeAuthInfo(byte* input, int sz, DecodedCert* cert)
|
---|
| 3932 | /*
|
---|
| 3933 | * Read the first of the Authority Information Access records. If there are
|
---|
| 3934 | * any issues, return without saving the record.
|
---|
| 3935 | */
|
---|
| 3936 | {
|
---|
| 3937 | word32 idx = 0;
|
---|
| 3938 | int length = 0;
|
---|
| 3939 | byte b;
|
---|
| 3940 | word32 oid;
|
---|
| 3941 |
|
---|
| 3942 | WOLFSSL_ENTER("DecodeAuthInfo");
|
---|
| 3943 |
|
---|
| 3944 | /* Unwrap the list of AIAs */
|
---|
| 3945 | if (GetSequence(input, &idx, &length, sz) < 0)
|
---|
| 3946 | return ASN_PARSE_E;
|
---|
| 3947 |
|
---|
| 3948 | while (idx < (word32)sz) {
|
---|
| 3949 | /* Unwrap a single AIA */
|
---|
| 3950 | if (GetSequence(input, &idx, &length, sz) < 0)
|
---|
| 3951 | return ASN_PARSE_E;
|
---|
| 3952 |
|
---|
| 3953 | oid = 0;
|
---|
| 3954 | if (GetObjectId(input, &idx, &oid, sz) < 0)
|
---|
| 3955 | return ASN_PARSE_E;
|
---|
| 3956 |
|
---|
| 3957 | /* Only supporting URIs right now. */
|
---|
| 3958 | b = input[idx++];
|
---|
| 3959 | if (GetLength(input, &idx, &length, sz) < 0)
|
---|
| 3960 | return ASN_PARSE_E;
|
---|
| 3961 |
|
---|
| 3962 | if (b == (ASN_CONTEXT_SPECIFIC | GENERALNAME_URI) &&
|
---|
| 3963 | oid == AIA_OCSP_OID)
|
---|
| 3964 | {
|
---|
| 3965 | cert->extAuthInfoSz = length;
|
---|
| 3966 | cert->extAuthInfo = input + idx;
|
---|
| 3967 | break;
|
---|
| 3968 | }
|
---|
| 3969 | idx += length;
|
---|
| 3970 | }
|
---|
| 3971 |
|
---|
| 3972 | return 0;
|
---|
| 3973 | }
|
---|
| 3974 |
|
---|
| 3975 |
|
---|
| 3976 | static int DecodeAuthKeyId(byte* input, int sz, DecodedCert* cert)
|
---|
| 3977 | {
|
---|
| 3978 | word32 idx = 0;
|
---|
| 3979 | int length = 0, ret = 0;
|
---|
| 3980 |
|
---|
| 3981 | WOLFSSL_ENTER("DecodeAuthKeyId");
|
---|
| 3982 |
|
---|
| 3983 | if (GetSequence(input, &idx, &length, sz) < 0) {
|
---|
| 3984 | WOLFSSL_MSG("\tfail: should be a SEQUENCE\n");
|
---|
| 3985 | return ASN_PARSE_E;
|
---|
| 3986 | }
|
---|
| 3987 |
|
---|
| 3988 | if (input[idx++] != (ASN_CONTEXT_SPECIFIC | 0)) {
|
---|
| 3989 | WOLFSSL_MSG("\tinfo: OPTIONAL item 0, not available\n");
|
---|
| 3990 | return 0;
|
---|
| 3991 | }
|
---|
| 3992 |
|
---|
| 3993 | if (GetLength(input, &idx, &length, sz) < 0) {
|
---|
| 3994 | WOLFSSL_MSG("\tfail: extension data length");
|
---|
| 3995 | return ASN_PARSE_E;
|
---|
| 3996 | }
|
---|
| 3997 |
|
---|
| 3998 | #ifdef OPENSSL_EXTRA
|
---|
| 3999 | cert->extAuthKeyIdSrc = &input[idx];
|
---|
| 4000 | cert->extAuthKeyIdSz = length;
|
---|
| 4001 | #endif /* OPENSSL_EXTRA */
|
---|
| 4002 |
|
---|
| 4003 | if (length == KEYID_SIZE) {
|
---|
| 4004 | XMEMCPY(cert->extAuthKeyId, input + idx, length);
|
---|
| 4005 | }
|
---|
| 4006 | else {
|
---|
| 4007 | #ifdef NO_SHA
|
---|
| 4008 | ret = wc_Sha256Hash(input + idx, length, cert->extAuthKeyId);
|
---|
| 4009 | #else
|
---|
| 4010 | ret = wc_ShaHash(input + idx, length, cert->extAuthKeyId);
|
---|
| 4011 | #endif
|
---|
| 4012 | }
|
---|
| 4013 |
|
---|
| 4014 | return ret;
|
---|
| 4015 | }
|
---|
| 4016 |
|
---|
| 4017 |
|
---|
| 4018 | static int DecodeSubjKeyId(byte* input, int sz, DecodedCert* cert)
|
---|
| 4019 | {
|
---|
| 4020 | word32 idx = 0;
|
---|
| 4021 | int length = 0, ret = 0;
|
---|
| 4022 |
|
---|
| 4023 | WOLFSSL_ENTER("DecodeSubjKeyId");
|
---|
| 4024 |
|
---|
| 4025 | if (input[idx++] != ASN_OCTET_STRING) {
|
---|
| 4026 | WOLFSSL_MSG("\tfail: should be an OCTET STRING");
|
---|
| 4027 | return ASN_PARSE_E;
|
---|
| 4028 | }
|
---|
| 4029 |
|
---|
| 4030 | if (GetLength(input, &idx, &length, sz) < 0) {
|
---|
| 4031 | WOLFSSL_MSG("\tfail: extension data length");
|
---|
| 4032 | return ASN_PARSE_E;
|
---|
| 4033 | }
|
---|
| 4034 |
|
---|
| 4035 | #ifdef OPENSSL_EXTRA
|
---|
| 4036 | cert->extSubjKeyIdSrc = &input[idx];
|
---|
| 4037 | cert->extSubjKeyIdSz = length;
|
---|
| 4038 | #endif /* OPENSSL_EXTRA */
|
---|
| 4039 |
|
---|
| 4040 | if (length == SIGNER_DIGEST_SIZE) {
|
---|
| 4041 | XMEMCPY(cert->extSubjKeyId, input + idx, length);
|
---|
| 4042 | }
|
---|
| 4043 | else {
|
---|
| 4044 | #ifdef NO_SHA
|
---|
| 4045 | ret = wc_Sha256Hash(input + idx, length, cert->extSubjKeyId);
|
---|
| 4046 | #else
|
---|
| 4047 | ret = wc_ShaHash(input + idx, length, cert->extSubjKeyId);
|
---|
| 4048 | #endif
|
---|
| 4049 | }
|
---|
| 4050 |
|
---|
| 4051 | return ret;
|
---|
| 4052 | }
|
---|
| 4053 |
|
---|
| 4054 |
|
---|
| 4055 | static int DecodeKeyUsage(byte* input, int sz, DecodedCert* cert)
|
---|
| 4056 | {
|
---|
| 4057 | word32 idx = 0;
|
---|
| 4058 | int length;
|
---|
| 4059 | WOLFSSL_ENTER("DecodeKeyUsage");
|
---|
| 4060 |
|
---|
| 4061 | if (input[idx++] != ASN_BIT_STRING) {
|
---|
| 4062 | WOLFSSL_MSG("\tfail: key usage expected bit string");
|
---|
| 4063 | return ASN_PARSE_E;
|
---|
| 4064 | }
|
---|
| 4065 |
|
---|
| 4066 | if (GetLength(input, &idx, &length, sz) < 0) {
|
---|
| 4067 | WOLFSSL_MSG("\tfail: key usage bad length");
|
---|
| 4068 | return ASN_PARSE_E;
|
---|
| 4069 | }
|
---|
| 4070 |
|
---|
| 4071 | /* pass the unusedBits value */
|
---|
| 4072 | idx++; length--;
|
---|
| 4073 |
|
---|
| 4074 | cert->extKeyUsage = (word16)(input[idx]);
|
---|
| 4075 | if (length == 2)
|
---|
| 4076 | cert->extKeyUsage |= (word16)(input[idx+1] << 8);
|
---|
| 4077 |
|
---|
| 4078 | return 0;
|
---|
| 4079 | }
|
---|
| 4080 |
|
---|
| 4081 |
|
---|
| 4082 | static int DecodeExtKeyUsage(byte* input, int sz, DecodedCert* cert)
|
---|
| 4083 | {
|
---|
| 4084 | word32 idx = 0, oid;
|
---|
| 4085 | int length;
|
---|
| 4086 |
|
---|
| 4087 | WOLFSSL_ENTER("DecodeExtKeyUsage");
|
---|
| 4088 |
|
---|
| 4089 | if (GetSequence(input, &idx, &length, sz) < 0) {
|
---|
| 4090 | WOLFSSL_MSG("\tfail: should be a SEQUENCE");
|
---|
| 4091 | return ASN_PARSE_E;
|
---|
| 4092 | }
|
---|
| 4093 |
|
---|
| 4094 | #ifdef OPENSSL_EXTRA
|
---|
| 4095 | cert->extExtKeyUsageSrc = input + idx;
|
---|
| 4096 | cert->extExtKeyUsageSz = length;
|
---|
| 4097 | #endif
|
---|
| 4098 |
|
---|
| 4099 | while (idx < (word32)sz) {
|
---|
| 4100 | if (GetObjectId(input, &idx, &oid, sz) < 0)
|
---|
| 4101 | return ASN_PARSE_E;
|
---|
| 4102 |
|
---|
| 4103 | switch (oid) {
|
---|
| 4104 | case EKU_ANY_OID:
|
---|
| 4105 | cert->extExtKeyUsage |= EXTKEYUSE_ANY;
|
---|
| 4106 | break;
|
---|
| 4107 | case EKU_SERVER_AUTH_OID:
|
---|
| 4108 | cert->extExtKeyUsage |= EXTKEYUSE_SERVER_AUTH;
|
---|
| 4109 | break;
|
---|
| 4110 | case EKU_CLIENT_AUTH_OID:
|
---|
| 4111 | cert->extExtKeyUsage |= EXTKEYUSE_CLIENT_AUTH;
|
---|
| 4112 | break;
|
---|
| 4113 | case EKU_OCSP_SIGN_OID:
|
---|
| 4114 | cert->extExtKeyUsage |= EXTKEYUSE_OCSP_SIGN;
|
---|
| 4115 | break;
|
---|
| 4116 | }
|
---|
| 4117 |
|
---|
| 4118 | #ifdef OPENSSL_EXTRA
|
---|
| 4119 | cert->extExtKeyUsageCount++;
|
---|
| 4120 | #endif
|
---|
| 4121 | }
|
---|
| 4122 |
|
---|
| 4123 | return 0;
|
---|
| 4124 | }
|
---|
| 4125 |
|
---|
| 4126 |
|
---|
| 4127 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 4128 | static int DecodeSubtree(byte* input, int sz, Base_entry** head, void* heap)
|
---|
| 4129 | {
|
---|
| 4130 | word32 idx = 0;
|
---|
| 4131 |
|
---|
| 4132 | (void)heap;
|
---|
| 4133 |
|
---|
| 4134 | while (idx < (word32)sz) {
|
---|
| 4135 | int seqLength, strLength;
|
---|
| 4136 | word32 nameIdx;
|
---|
| 4137 | byte b;
|
---|
| 4138 |
|
---|
| 4139 | if (GetSequence(input, &idx, &seqLength, sz) < 0) {
|
---|
| 4140 | WOLFSSL_MSG("\tfail: should be a SEQUENCE");
|
---|
| 4141 | return ASN_PARSE_E;
|
---|
| 4142 | }
|
---|
| 4143 |
|
---|
| 4144 | nameIdx = idx;
|
---|
| 4145 | b = input[nameIdx++];
|
---|
| 4146 | if (GetLength(input, &nameIdx, &strLength, sz) <= 0) {
|
---|
| 4147 | WOLFSSL_MSG("\tinvalid length");
|
---|
| 4148 | return ASN_PARSE_E;
|
---|
| 4149 | }
|
---|
| 4150 |
|
---|
| 4151 | if (b == (ASN_CONTEXT_SPECIFIC | ASN_DNS_TYPE) ||
|
---|
| 4152 | b == (ASN_CONTEXT_SPECIFIC | ASN_RFC822_TYPE) ||
|
---|
| 4153 | b == (ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED | ASN_DIR_TYPE)) {
|
---|
| 4154 |
|
---|
| 4155 | Base_entry* entry = (Base_entry*)XMALLOC(sizeof(Base_entry),
|
---|
| 4156 | heap, DYNAMIC_TYPE_ALTNAME);
|
---|
| 4157 |
|
---|
| 4158 | if (entry == NULL) {
|
---|
| 4159 | WOLFSSL_MSG("allocate error");
|
---|
| 4160 | return MEMORY_E;
|
---|
| 4161 | }
|
---|
| 4162 |
|
---|
| 4163 | entry->name = (char*)XMALLOC(strLength, heap, DYNAMIC_TYPE_ALTNAME);
|
---|
| 4164 | if (entry->name == NULL) {
|
---|
| 4165 | WOLFSSL_MSG("allocate error");
|
---|
| 4166 | return MEMORY_E;
|
---|
| 4167 | }
|
---|
| 4168 |
|
---|
| 4169 | XMEMCPY(entry->name, &input[nameIdx], strLength);
|
---|
| 4170 | entry->nameSz = strLength;
|
---|
| 4171 | entry->type = b & 0x0F;
|
---|
| 4172 |
|
---|
| 4173 | entry->next = *head;
|
---|
| 4174 | *head = entry;
|
---|
| 4175 | }
|
---|
| 4176 |
|
---|
| 4177 | idx += seqLength;
|
---|
| 4178 | }
|
---|
| 4179 |
|
---|
| 4180 | return 0;
|
---|
| 4181 | }
|
---|
| 4182 |
|
---|
| 4183 |
|
---|
| 4184 | static int DecodeNameConstraints(byte* input, int sz, DecodedCert* cert)
|
---|
| 4185 | {
|
---|
| 4186 | word32 idx = 0;
|
---|
| 4187 | int length = 0;
|
---|
| 4188 |
|
---|
| 4189 | WOLFSSL_ENTER("DecodeNameConstraints");
|
---|
| 4190 |
|
---|
| 4191 | if (GetSequence(input, &idx, &length, sz) < 0) {
|
---|
| 4192 | WOLFSSL_MSG("\tfail: should be a SEQUENCE");
|
---|
| 4193 | return ASN_PARSE_E;
|
---|
| 4194 | }
|
---|
| 4195 |
|
---|
| 4196 | while (idx < (word32)sz) {
|
---|
| 4197 | byte b = input[idx++];
|
---|
| 4198 | Base_entry** subtree = NULL;
|
---|
| 4199 |
|
---|
| 4200 | if (GetLength(input, &idx, &length, sz) <= 0) {
|
---|
| 4201 | WOLFSSL_MSG("\tinvalid length");
|
---|
| 4202 | return ASN_PARSE_E;
|
---|
| 4203 | }
|
---|
| 4204 |
|
---|
| 4205 | if (b == (ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED | 0))
|
---|
| 4206 | subtree = &cert->permittedNames;
|
---|
| 4207 | else if (b == (ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED | 1))
|
---|
| 4208 | subtree = &cert->excludedNames;
|
---|
| 4209 | else {
|
---|
| 4210 | WOLFSSL_MSG("\tinvalid subtree");
|
---|
| 4211 | return ASN_PARSE_E;
|
---|
| 4212 | }
|
---|
| 4213 |
|
---|
| 4214 | DecodeSubtree(input + idx, length, subtree, cert->heap);
|
---|
| 4215 |
|
---|
| 4216 | idx += length;
|
---|
| 4217 | }
|
---|
| 4218 |
|
---|
| 4219 | return 0;
|
---|
| 4220 | }
|
---|
| 4221 | #endif /* IGNORE_NAME_CONSTRAINTS */
|
---|
| 4222 |
|
---|
| 4223 | #if defined(WOLFSSL_CERT_EXT) && !defined(WOLFSSL_SEP)
|
---|
| 4224 |
|
---|
| 4225 | static int Word32ToString(char* d, word32 number)
|
---|
| 4226 | {
|
---|
| 4227 | int i = 0;
|
---|
| 4228 |
|
---|
| 4229 | if (d != NULL) {
|
---|
| 4230 | word32 order = 1000000000;
|
---|
| 4231 | word32 digit;
|
---|
| 4232 |
|
---|
| 4233 | if (number == 0) {
|
---|
| 4234 | d[i++] = '0';
|
---|
| 4235 | }
|
---|
| 4236 | else {
|
---|
| 4237 | while (order) {
|
---|
| 4238 | digit = number / order;
|
---|
| 4239 | if (i > 0 || digit != 0) {
|
---|
| 4240 | d[i++] = (char)digit + '0';
|
---|
| 4241 | }
|
---|
| 4242 | if (digit != 0)
|
---|
| 4243 | number %= digit * order;
|
---|
| 4244 | if (order > 1)
|
---|
| 4245 | order /= 10;
|
---|
| 4246 | else
|
---|
| 4247 | order = 0;
|
---|
| 4248 | }
|
---|
| 4249 | }
|
---|
| 4250 | d[i] = 0;
|
---|
| 4251 | }
|
---|
| 4252 |
|
---|
| 4253 | return i;
|
---|
| 4254 | }
|
---|
| 4255 |
|
---|
| 4256 |
|
---|
| 4257 | /* Decode ITU-T X.690 OID format to a string representation
|
---|
| 4258 | * return string length */
|
---|
| 4259 | static int DecodePolicyOID(char *out, word32 outSz, byte *in, word32 inSz)
|
---|
| 4260 | {
|
---|
| 4261 | word32 val, idx = 0, nb_bytes;
|
---|
| 4262 | size_t w_bytes = 0;
|
---|
| 4263 |
|
---|
| 4264 | if (out == NULL || in == NULL || outSz < 4 || inSz < 2)
|
---|
| 4265 | return BAD_FUNC_ARG;
|
---|
| 4266 |
|
---|
| 4267 | /* first two byte must be interpreted as : 40 * int1 + int2 */
|
---|
| 4268 | val = (word16)in[idx++];
|
---|
| 4269 |
|
---|
| 4270 | w_bytes = Word32ToString(out, val / 40);
|
---|
| 4271 | out[w_bytes++] = '.';
|
---|
| 4272 | w_bytes += Word32ToString(out+w_bytes, val % 40);
|
---|
| 4273 |
|
---|
| 4274 | while (idx < inSz) {
|
---|
| 4275 | /* init value */
|
---|
| 4276 | val = 0;
|
---|
| 4277 | nb_bytes = 0;
|
---|
| 4278 |
|
---|
| 4279 | /* check that output size is ok */
|
---|
| 4280 | if (w_bytes > (outSz - 3))
|
---|
| 4281 | return BUFFER_E;
|
---|
| 4282 |
|
---|
| 4283 | /* first bit is used to set if value is coded on 1 or multiple bytes */
|
---|
| 4284 | while ((in[idx+nb_bytes] & 0x80))
|
---|
| 4285 | nb_bytes++;
|
---|
| 4286 |
|
---|
| 4287 | if (!nb_bytes)
|
---|
| 4288 | val = (word32)(in[idx++] & 0x7f);
|
---|
| 4289 | else {
|
---|
| 4290 | word32 base = 1, tmp = nb_bytes;
|
---|
| 4291 |
|
---|
| 4292 | while (tmp != 0) {
|
---|
| 4293 | val += (word32)(in[idx+tmp] & 0x7f) * base;
|
---|
| 4294 | base *= 128;
|
---|
| 4295 | tmp--;
|
---|
| 4296 | }
|
---|
| 4297 | val += (word32)(in[idx++] & 0x7f) * base;
|
---|
| 4298 |
|
---|
| 4299 | idx += nb_bytes;
|
---|
| 4300 | }
|
---|
| 4301 |
|
---|
| 4302 | out[w_bytes++] = '.';
|
---|
| 4303 | w_bytes += Word32ToString(out+w_bytes, val);
|
---|
| 4304 | }
|
---|
| 4305 |
|
---|
| 4306 | return 0;
|
---|
| 4307 | }
|
---|
| 4308 | #endif /* WOLFSSL_CERT_EXT && !WOLFSSL_SEP */
|
---|
| 4309 |
|
---|
| 4310 | #if defined(WOLFSSL_SEP) || defined(WOLFSSL_CERT_EXT)
|
---|
| 4311 | static int DecodeCertPolicy(byte* input, int sz, DecodedCert* cert)
|
---|
| 4312 | {
|
---|
| 4313 | word32 idx = 0;
|
---|
| 4314 | int total_length = 0, length = 0;
|
---|
| 4315 |
|
---|
| 4316 | WOLFSSL_ENTER("DecodeCertPolicy");
|
---|
| 4317 |
|
---|
| 4318 | /* Unwrap certificatePolicies */
|
---|
| 4319 | if (GetSequence(input, &idx, &total_length, sz) < 0) {
|
---|
| 4320 | WOLFSSL_MSG("\tdeviceType isn't OID");
|
---|
| 4321 | return ASN_PARSE_E;
|
---|
| 4322 | }
|
---|
| 4323 |
|
---|
| 4324 | if (GetSequence(input, &idx, &length, sz) < 0) {
|
---|
| 4325 | WOLFSSL_MSG("\tdeviceType isn't OID");
|
---|
| 4326 | return ASN_PARSE_E;
|
---|
| 4327 | }
|
---|
| 4328 | total_length -= (length+1);
|
---|
| 4329 |
|
---|
| 4330 | if (input[idx++] != ASN_OBJECT_ID) {
|
---|
| 4331 | WOLFSSL_MSG("\tdeviceType isn't OID");
|
---|
| 4332 | return ASN_PARSE_E;
|
---|
| 4333 | }
|
---|
| 4334 | total_length--;
|
---|
| 4335 |
|
---|
| 4336 | if (GetLength(input, &idx, &length, sz) < 0) {
|
---|
| 4337 | WOLFSSL_MSG("\tCouldn't read length of deviceType");
|
---|
| 4338 | return ASN_PARSE_E;
|
---|
| 4339 | }
|
---|
| 4340 |
|
---|
| 4341 | if (length > 0) {
|
---|
| 4342 | #if defined(WOLFSSL_SEP)
|
---|
| 4343 | cert->deviceType = (byte*)XMALLOC(length, cert->heap, 0);
|
---|
| 4344 | if (cert->deviceType == NULL) {
|
---|
| 4345 | WOLFSSL_MSG("\tCouldn't alloc memory for deviceType");
|
---|
| 4346 | return MEMORY_E;
|
---|
| 4347 | }
|
---|
| 4348 | cert->deviceTypeSz = length;
|
---|
| 4349 | XMEMCPY(cert->deviceType, input + idx, length);
|
---|
| 4350 | #elif defined(WOLFSSL_CERT_EXT)
|
---|
| 4351 | /* decode cert policy */
|
---|
| 4352 | if (DecodePolicyOID(cert->extCertPolicies[0], MAX_CERTPOL_SZ,
|
---|
| 4353 | input+idx, length) != 0) {
|
---|
| 4354 | WOLFSSL_MSG("\tCouldn't read Policy OID 1");
|
---|
| 4355 | return ASN_PARSE_E;
|
---|
| 4356 | }
|
---|
| 4357 | cert->extCertPoliciesNb++;
|
---|
| 4358 |
|
---|
| 4359 | /* check if we have a second value */
|
---|
| 4360 | if (total_length) {
|
---|
| 4361 | idx += length;
|
---|
| 4362 |
|
---|
| 4363 | if (GetSequence(input, &idx, &length, sz) < 0) {
|
---|
| 4364 | WOLFSSL_MSG("\tdeviceType isn't OID");
|
---|
| 4365 | return ASN_PARSE_E;
|
---|
| 4366 | }
|
---|
| 4367 |
|
---|
| 4368 | if (input[idx++] != ASN_OBJECT_ID) {
|
---|
| 4369 | WOLFSSL_MSG("\tdeviceType isn't OID");
|
---|
| 4370 | return ASN_PARSE_E;
|
---|
| 4371 | }
|
---|
| 4372 |
|
---|
| 4373 | if (GetLength(input, &idx, &length, sz) < 0) {
|
---|
| 4374 | WOLFSSL_MSG("\tCouldn't read length of deviceType");
|
---|
| 4375 | return ASN_PARSE_E;
|
---|
| 4376 | }
|
---|
| 4377 |
|
---|
| 4378 | /* decode cert policy */
|
---|
| 4379 | if (DecodePolicyOID(cert->extCertPolicies[1], MAX_CERTPOL_SZ,
|
---|
| 4380 | input+idx, length) != 0) {
|
---|
| 4381 | WOLFSSL_MSG("\tCouldn't read Policy OID 2");
|
---|
| 4382 | return ASN_PARSE_E;
|
---|
| 4383 | }
|
---|
| 4384 | cert->extCertPoliciesNb++;
|
---|
| 4385 | }
|
---|
| 4386 | #else
|
---|
| 4387 | WOLFSSL_LEAVE("DecodeCertPolicy : unsupported mode", 0);
|
---|
| 4388 | return 0;
|
---|
| 4389 | #endif
|
---|
| 4390 | }
|
---|
| 4391 |
|
---|
| 4392 | WOLFSSL_LEAVE("DecodeCertPolicy", 0);
|
---|
| 4393 | return 0;
|
---|
| 4394 | }
|
---|
| 4395 | #endif /* WOLFSSL_SEP */
|
---|
| 4396 |
|
---|
| 4397 |
|
---|
| 4398 | static int DecodeCertExtensions(DecodedCert* cert)
|
---|
| 4399 | /*
|
---|
| 4400 | * Processing the Certificate Extensions. This does not modify the current
|
---|
| 4401 | * index. It is works starting with the recorded extensions pointer.
|
---|
| 4402 | */
|
---|
| 4403 | {
|
---|
| 4404 | word32 idx = 0;
|
---|
| 4405 | int sz = cert->extensionsSz;
|
---|
| 4406 | byte* input = cert->extensions;
|
---|
| 4407 | int length;
|
---|
| 4408 | word32 oid;
|
---|
| 4409 | byte critical = 0;
|
---|
| 4410 | byte criticalFail = 0;
|
---|
| 4411 |
|
---|
| 4412 | WOLFSSL_ENTER("DecodeCertExtensions");
|
---|
| 4413 |
|
---|
| 4414 | if (input == NULL || sz == 0)
|
---|
| 4415 | return BAD_FUNC_ARG;
|
---|
| 4416 |
|
---|
| 4417 | if (input[idx++] != ASN_EXTENSIONS) {
|
---|
| 4418 | WOLFSSL_MSG("\tfail: should be an EXTENSIONS");
|
---|
| 4419 | return ASN_PARSE_E;
|
---|
| 4420 | }
|
---|
| 4421 |
|
---|
| 4422 | if (GetLength(input, &idx, &length, sz) < 0) {
|
---|
| 4423 | WOLFSSL_MSG("\tfail: invalid length");
|
---|
| 4424 | return ASN_PARSE_E;
|
---|
| 4425 | }
|
---|
| 4426 |
|
---|
| 4427 | if (GetSequence(input, &idx, &length, sz) < 0) {
|
---|
| 4428 | WOLFSSL_MSG("\tfail: should be a SEQUENCE (1)");
|
---|
| 4429 | return ASN_PARSE_E;
|
---|
| 4430 | }
|
---|
| 4431 |
|
---|
| 4432 | while (idx < (word32)sz) {
|
---|
| 4433 | if (GetSequence(input, &idx, &length, sz) < 0) {
|
---|
| 4434 | WOLFSSL_MSG("\tfail: should be a SEQUENCE");
|
---|
| 4435 | return ASN_PARSE_E;
|
---|
| 4436 | }
|
---|
| 4437 |
|
---|
| 4438 | oid = 0;
|
---|
| 4439 | if (GetObjectId(input, &idx, &oid, sz) < 0) {
|
---|
| 4440 | WOLFSSL_MSG("\tfail: OBJECT ID");
|
---|
| 4441 | return ASN_PARSE_E;
|
---|
| 4442 | }
|
---|
| 4443 |
|
---|
| 4444 | /* check for critical flag */
|
---|
| 4445 | critical = 0;
|
---|
| 4446 | if (input[idx] == ASN_BOOLEAN) {
|
---|
| 4447 | int boolLength = 0;
|
---|
| 4448 | idx++;
|
---|
| 4449 | if (GetLength(input, &idx, &boolLength, sz) < 0) {
|
---|
| 4450 | WOLFSSL_MSG("\tfail: critical boolean length");
|
---|
| 4451 | return ASN_PARSE_E;
|
---|
| 4452 | }
|
---|
| 4453 | if (input[idx++])
|
---|
| 4454 | critical = 1;
|
---|
| 4455 | }
|
---|
| 4456 |
|
---|
| 4457 | /* process the extension based on the OID */
|
---|
| 4458 | if (input[idx++] != ASN_OCTET_STRING) {
|
---|
| 4459 | WOLFSSL_MSG("\tfail: should be an OCTET STRING");
|
---|
| 4460 | return ASN_PARSE_E;
|
---|
| 4461 | }
|
---|
| 4462 |
|
---|
| 4463 | if (GetLength(input, &idx, &length, sz) < 0) {
|
---|
| 4464 | WOLFSSL_MSG("\tfail: extension data length");
|
---|
| 4465 | return ASN_PARSE_E;
|
---|
| 4466 | }
|
---|
| 4467 |
|
---|
| 4468 | switch (oid) {
|
---|
| 4469 | case BASIC_CA_OID:
|
---|
| 4470 | #ifdef OPENSSL_EXTRA
|
---|
| 4471 | cert->extBasicConstSet = 1;
|
---|
| 4472 | cert->extBasicConstCrit = critical;
|
---|
| 4473 | #endif
|
---|
| 4474 | if (DecodeBasicCaConstraint(&input[idx], length, cert) < 0)
|
---|
| 4475 | return ASN_PARSE_E;
|
---|
| 4476 | break;
|
---|
| 4477 |
|
---|
| 4478 | case CRL_DIST_OID:
|
---|
| 4479 | if (DecodeCrlDist(&input[idx], length, cert) < 0)
|
---|
| 4480 | return ASN_PARSE_E;
|
---|
| 4481 | break;
|
---|
| 4482 |
|
---|
| 4483 | case AUTH_INFO_OID:
|
---|
| 4484 | if (DecodeAuthInfo(&input[idx], length, cert) < 0)
|
---|
| 4485 | return ASN_PARSE_E;
|
---|
| 4486 | break;
|
---|
| 4487 |
|
---|
| 4488 | case ALT_NAMES_OID:
|
---|
| 4489 | #ifdef OPENSSL_EXTRA
|
---|
| 4490 | cert->extSubjAltNameSet = 1;
|
---|
| 4491 | cert->extSubjAltNameCrit = critical;
|
---|
| 4492 | #endif
|
---|
| 4493 | if (DecodeAltNames(&input[idx], length, cert) < 0)
|
---|
| 4494 | return ASN_PARSE_E;
|
---|
| 4495 | break;
|
---|
| 4496 |
|
---|
| 4497 | case AUTH_KEY_OID:
|
---|
| 4498 | cert->extAuthKeyIdSet = 1;
|
---|
| 4499 | #ifdef OPENSSL_EXTRA
|
---|
| 4500 | cert->extAuthKeyIdCrit = critical;
|
---|
| 4501 | #endif
|
---|
| 4502 | if (DecodeAuthKeyId(&input[idx], length, cert) < 0)
|
---|
| 4503 | return ASN_PARSE_E;
|
---|
| 4504 | break;
|
---|
| 4505 |
|
---|
| 4506 | case SUBJ_KEY_OID:
|
---|
| 4507 | cert->extSubjKeyIdSet = 1;
|
---|
| 4508 | #ifdef OPENSSL_EXTRA
|
---|
| 4509 | cert->extSubjKeyIdCrit = critical;
|
---|
| 4510 | #endif
|
---|
| 4511 | if (DecodeSubjKeyId(&input[idx], length, cert) < 0)
|
---|
| 4512 | return ASN_PARSE_E;
|
---|
| 4513 | break;
|
---|
| 4514 |
|
---|
| 4515 | case CERT_POLICY_OID:
|
---|
| 4516 | WOLFSSL_MSG("Certificate Policy extension not supported yet.");
|
---|
| 4517 | #ifdef WOLFSSL_SEP
|
---|
| 4518 | #ifdef OPENSSL_EXTRA
|
---|
| 4519 | cert->extCertPolicySet = 1;
|
---|
| 4520 | cert->extCertPolicyCrit = critical;
|
---|
| 4521 | #endif
|
---|
| 4522 | #endif
|
---|
| 4523 | #if defined(WOLFSSL_SEP) || defined(WOLFSSL_CERT_EXT)
|
---|
| 4524 | if (DecodeCertPolicy(&input[idx], length, cert) < 0)
|
---|
| 4525 | return ASN_PARSE_E;
|
---|
| 4526 | #endif
|
---|
| 4527 | break;
|
---|
| 4528 |
|
---|
| 4529 | case KEY_USAGE_OID:
|
---|
| 4530 | cert->extKeyUsageSet = 1;
|
---|
| 4531 | #ifdef OPENSSL_EXTRA
|
---|
| 4532 | cert->extKeyUsageCrit = critical;
|
---|
| 4533 | #endif
|
---|
| 4534 | if (DecodeKeyUsage(&input[idx], length, cert) < 0)
|
---|
| 4535 | return ASN_PARSE_E;
|
---|
| 4536 | break;
|
---|
| 4537 |
|
---|
| 4538 | case EXT_KEY_USAGE_OID:
|
---|
| 4539 | cert->extExtKeyUsageSet = 1;
|
---|
| 4540 | #ifdef OPENSSL_EXTRA
|
---|
| 4541 | cert->extExtKeyUsageCrit = critical;
|
---|
| 4542 | #endif
|
---|
| 4543 | if (DecodeExtKeyUsage(&input[idx], length, cert) < 0)
|
---|
| 4544 | return ASN_PARSE_E;
|
---|
| 4545 | break;
|
---|
| 4546 |
|
---|
| 4547 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 4548 | case NAME_CONS_OID:
|
---|
| 4549 | cert->extNameConstraintSet = 1;
|
---|
| 4550 | #ifdef OPENSSL_EXTRA
|
---|
| 4551 | cert->extNameConstraintCrit = critical;
|
---|
| 4552 | #endif
|
---|
| 4553 | if (DecodeNameConstraints(&input[idx], length, cert) < 0)
|
---|
| 4554 | return ASN_PARSE_E;
|
---|
| 4555 | break;
|
---|
| 4556 | #endif /* IGNORE_NAME_CONSTRAINTS */
|
---|
| 4557 |
|
---|
| 4558 | case INHIBIT_ANY_OID:
|
---|
| 4559 | WOLFSSL_MSG("Inhibit anyPolicy extension not supported yet.");
|
---|
| 4560 | break;
|
---|
| 4561 |
|
---|
| 4562 | default:
|
---|
| 4563 | /* While it is a failure to not support critical extensions,
|
---|
| 4564 | * still parse the certificate ignoring the unsupported
|
---|
| 4565 | * extention to allow caller to accept it with the verify
|
---|
| 4566 | * callback. */
|
---|
| 4567 | if (critical)
|
---|
| 4568 | criticalFail = 1;
|
---|
| 4569 | break;
|
---|
| 4570 | }
|
---|
| 4571 | idx += length;
|
---|
| 4572 | }
|
---|
| 4573 |
|
---|
| 4574 | return criticalFail ? ASN_CRIT_EXT_E : 0;
|
---|
| 4575 | }
|
---|
| 4576 |
|
---|
| 4577 |
|
---|
| 4578 | int ParseCert(DecodedCert* cert, int type, int verify, void* cm)
|
---|
| 4579 | {
|
---|
| 4580 | int ret;
|
---|
| 4581 | char* ptr;
|
---|
| 4582 |
|
---|
| 4583 | ret = ParseCertRelative(cert, type, verify, cm);
|
---|
| 4584 | if (ret < 0)
|
---|
| 4585 | return ret;
|
---|
| 4586 |
|
---|
| 4587 | if (cert->subjectCNLen > 0) {
|
---|
| 4588 | ptr = (char*) XMALLOC(cert->subjectCNLen + 1, cert->heap,
|
---|
| 4589 | DYNAMIC_TYPE_SUBJECT_CN);
|
---|
| 4590 | if (ptr == NULL)
|
---|
| 4591 | return MEMORY_E;
|
---|
| 4592 | XMEMCPY(ptr, cert->subjectCN, cert->subjectCNLen);
|
---|
| 4593 | ptr[cert->subjectCNLen] = '\0';
|
---|
| 4594 | cert->subjectCN = ptr;
|
---|
| 4595 | cert->subjectCNStored = 1;
|
---|
| 4596 | }
|
---|
| 4597 |
|
---|
| 4598 | if (cert->keyOID == RSAk &&
|
---|
| 4599 | cert->publicKey != NULL && cert->pubKeySize > 0) {
|
---|
| 4600 | ptr = (char*) XMALLOC(cert->pubKeySize, cert->heap,
|
---|
| 4601 | DYNAMIC_TYPE_PUBLIC_KEY);
|
---|
| 4602 | if (ptr == NULL)
|
---|
| 4603 | return MEMORY_E;
|
---|
| 4604 | XMEMCPY(ptr, cert->publicKey, cert->pubKeySize);
|
---|
| 4605 | cert->publicKey = (byte *)ptr;
|
---|
| 4606 | cert->pubKeyStored = 1;
|
---|
| 4607 | }
|
---|
| 4608 |
|
---|
| 4609 | return ret;
|
---|
| 4610 | }
|
---|
| 4611 |
|
---|
| 4612 |
|
---|
| 4613 | /* from SSL proper, for locking can't do find here anymore */
|
---|
| 4614 | #ifdef __cplusplus
|
---|
| 4615 | extern "C" {
|
---|
| 4616 | #endif
|
---|
| 4617 | WOLFSSL_LOCAL Signer* GetCA(void* signers, byte* hash);
|
---|
| 4618 | #ifndef NO_SKID
|
---|
| 4619 | WOLFSSL_LOCAL Signer* GetCAByName(void* signers, byte* hash);
|
---|
| 4620 | #endif
|
---|
| 4621 | #ifdef __cplusplus
|
---|
| 4622 | }
|
---|
| 4623 | #endif
|
---|
| 4624 |
|
---|
| 4625 |
|
---|
| 4626 | #ifdef WOLFCRYPT_ONLY
|
---|
| 4627 |
|
---|
| 4628 | /* dummy functions, not using wolfSSL so don't need actual ones */
|
---|
| 4629 | Signer* GetCA(void* signers, byte* hash)
|
---|
| 4630 | {
|
---|
| 4631 | (void)hash;
|
---|
| 4632 |
|
---|
| 4633 | return (Signer*)signers;
|
---|
| 4634 | }
|
---|
| 4635 |
|
---|
| 4636 | #ifndef NO_SKID
|
---|
| 4637 | Signer* GetCAByName(void* signers, byte* hash)
|
---|
| 4638 | {
|
---|
| 4639 | (void)hash;
|
---|
| 4640 |
|
---|
| 4641 | return (Signer*)signers;
|
---|
| 4642 | }
|
---|
| 4643 | #endif /* NO_SKID */
|
---|
| 4644 |
|
---|
| 4645 | #endif /* WOLFCRYPT_ONLY */
|
---|
| 4646 |
|
---|
| 4647 |
|
---|
| 4648 | int ParseCertRelative(DecodedCert* cert, int type, int verify, void* cm)
|
---|
| 4649 | {
|
---|
| 4650 | word32 confirmOID;
|
---|
| 4651 | int ret;
|
---|
| 4652 | int badDate = 0;
|
---|
| 4653 | int criticalExt = 0;
|
---|
| 4654 |
|
---|
| 4655 | if ((ret = DecodeToKey(cert, verify)) < 0) {
|
---|
| 4656 | if (ret == ASN_BEFORE_DATE_E || ret == ASN_AFTER_DATE_E)
|
---|
| 4657 | badDate = ret;
|
---|
| 4658 | else
|
---|
| 4659 | return ret;
|
---|
| 4660 | }
|
---|
| 4661 |
|
---|
| 4662 | WOLFSSL_MSG("Parsed Past Key");
|
---|
| 4663 |
|
---|
| 4664 | if (cert->srcIdx < cert->sigIndex) {
|
---|
| 4665 | #ifndef ALLOW_V1_EXTENSIONS
|
---|
| 4666 | if (cert->version < 2) {
|
---|
| 4667 | WOLFSSL_MSG(" v1 and v2 certs not allowed extensions");
|
---|
| 4668 | return ASN_VERSION_E;
|
---|
| 4669 | }
|
---|
| 4670 | #endif
|
---|
| 4671 | /* save extensions */
|
---|
| 4672 | cert->extensions = &cert->source[cert->srcIdx];
|
---|
| 4673 | cert->extensionsSz = cert->sigIndex - cert->srcIdx;
|
---|
| 4674 | cert->extensionsIdx = cert->srcIdx; /* for potential later use */
|
---|
| 4675 |
|
---|
| 4676 | if ((ret = DecodeCertExtensions(cert)) < 0) {
|
---|
| 4677 | if (ret == ASN_CRIT_EXT_E)
|
---|
| 4678 | criticalExt = ret;
|
---|
| 4679 | else
|
---|
| 4680 | return ret;
|
---|
| 4681 | }
|
---|
| 4682 |
|
---|
| 4683 | /* advance past extensions */
|
---|
| 4684 | cert->srcIdx = cert->sigIndex;
|
---|
| 4685 | }
|
---|
| 4686 |
|
---|
| 4687 | if ((ret = GetAlgoId(cert->source, &cert->srcIdx, &confirmOID,
|
---|
| 4688 | cert->maxIdx)) < 0)
|
---|
| 4689 | return ret;
|
---|
| 4690 |
|
---|
| 4691 | if ((ret = GetSignature(cert)) < 0)
|
---|
| 4692 | return ret;
|
---|
| 4693 |
|
---|
| 4694 | if (confirmOID != cert->signatureOID)
|
---|
| 4695 | return ASN_SIG_OID_E;
|
---|
| 4696 |
|
---|
| 4697 | #ifndef NO_SKID
|
---|
| 4698 | if (cert->extSubjKeyIdSet == 0
|
---|
| 4699 | && cert->publicKey != NULL && cert->pubKeySize > 0) {
|
---|
| 4700 | #ifdef NO_SHA
|
---|
| 4701 | ret = wc_Sha256Hash(cert->publicKey, cert->pubKeySize,
|
---|
| 4702 | cert->extSubjKeyId);
|
---|
| 4703 | #else
|
---|
| 4704 | ret = wc_ShaHash(cert->publicKey, cert->pubKeySize,
|
---|
| 4705 | cert->extSubjKeyId);
|
---|
| 4706 | #endif
|
---|
| 4707 | if (ret != 0)
|
---|
| 4708 | return ret;
|
---|
| 4709 | }
|
---|
| 4710 | #endif
|
---|
| 4711 |
|
---|
| 4712 | if (verify && type != CA_TYPE) {
|
---|
| 4713 | Signer* ca = NULL;
|
---|
| 4714 | #ifndef NO_SKID
|
---|
| 4715 | if (cert->extAuthKeyIdSet)
|
---|
| 4716 | ca = GetCA(cm, cert->extAuthKeyId);
|
---|
| 4717 | if (ca == NULL)
|
---|
| 4718 | ca = GetCAByName(cm, cert->issuerHash);
|
---|
| 4719 | #else /* NO_SKID */
|
---|
| 4720 | ca = GetCA(cm, cert->issuerHash);
|
---|
| 4721 | #endif /* NO SKID */
|
---|
| 4722 | WOLFSSL_MSG("About to verify certificate signature");
|
---|
| 4723 |
|
---|
| 4724 | if (ca) {
|
---|
| 4725 | #ifdef HAVE_OCSP
|
---|
| 4726 | /* Need the ca's public key hash for OCSP */
|
---|
| 4727 | #ifdef NO_SHA
|
---|
| 4728 | ret = wc_Sha256Hash(ca->publicKey, ca->pubKeySize,
|
---|
| 4729 | cert->issuerKeyHash);
|
---|
| 4730 | #else /* NO_SHA */
|
---|
| 4731 | ret = wc_ShaHash(ca->publicKey, ca->pubKeySize,
|
---|
| 4732 | cert->issuerKeyHash);
|
---|
| 4733 | #endif /* NO_SHA */
|
---|
| 4734 | if (ret != 0)
|
---|
| 4735 | return ret;
|
---|
| 4736 | #endif /* HAVE_OCSP */
|
---|
| 4737 | /* try to confirm/verify signature */
|
---|
| 4738 | if (!ConfirmSignature(cert->source + cert->certBegin,
|
---|
| 4739 | cert->sigIndex - cert->certBegin,
|
---|
| 4740 | ca->publicKey, ca->pubKeySize, ca->keyOID,
|
---|
| 4741 | cert->signature, cert->sigLength, cert->signatureOID,
|
---|
| 4742 | cert->heap)) {
|
---|
| 4743 | WOLFSSL_MSG("Confirm signature failed");
|
---|
| 4744 | return ASN_SIG_CONFIRM_E;
|
---|
| 4745 | }
|
---|
| 4746 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 4747 | /* check that this cert's name is permitted by the signer's
|
---|
| 4748 | * name constraints */
|
---|
| 4749 | if (!ConfirmNameConstraints(ca, cert)) {
|
---|
| 4750 | WOLFSSL_MSG("Confirm name constraint failed");
|
---|
| 4751 | return ASN_NAME_INVALID_E;
|
---|
| 4752 | }
|
---|
| 4753 | #endif /* IGNORE_NAME_CONSTRAINTS */
|
---|
| 4754 | }
|
---|
| 4755 | else {
|
---|
| 4756 | /* no signer */
|
---|
| 4757 | WOLFSSL_MSG("No CA signer to verify with");
|
---|
| 4758 | return ASN_NO_SIGNER_E;
|
---|
| 4759 | }
|
---|
| 4760 | }
|
---|
| 4761 |
|
---|
| 4762 | if (badDate != 0)
|
---|
| 4763 | return badDate;
|
---|
| 4764 |
|
---|
| 4765 | if (criticalExt != 0)
|
---|
| 4766 | return criticalExt;
|
---|
| 4767 |
|
---|
| 4768 | return 0;
|
---|
| 4769 | }
|
---|
| 4770 |
|
---|
| 4771 |
|
---|
| 4772 | /* Create and init an new signer */
|
---|
| 4773 | Signer* MakeSigner(void* heap)
|
---|
| 4774 | {
|
---|
| 4775 | Signer* signer = (Signer*) XMALLOC(sizeof(Signer), heap,
|
---|
| 4776 | DYNAMIC_TYPE_SIGNER);
|
---|
| 4777 | if (signer) {
|
---|
| 4778 | signer->pubKeySize = 0;
|
---|
| 4779 | signer->keyOID = 0;
|
---|
| 4780 | signer->publicKey = NULL;
|
---|
| 4781 | signer->nameLen = 0;
|
---|
| 4782 | signer->name = NULL;
|
---|
| 4783 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 4784 | signer->permittedNames = NULL;
|
---|
| 4785 | signer->excludedNames = NULL;
|
---|
| 4786 | #endif /* IGNORE_NAME_CONSTRAINTS */
|
---|
| 4787 | signer->next = NULL;
|
---|
| 4788 | }
|
---|
| 4789 | (void)heap;
|
---|
| 4790 |
|
---|
| 4791 | return signer;
|
---|
| 4792 | }
|
---|
| 4793 |
|
---|
| 4794 |
|
---|
| 4795 | /* Free an individual signer */
|
---|
| 4796 | void FreeSigner(Signer* signer, void* heap)
|
---|
| 4797 | {
|
---|
| 4798 | XFREE(signer->name, heap, DYNAMIC_TYPE_SUBJECT_CN);
|
---|
| 4799 | XFREE(signer->publicKey, heap, DYNAMIC_TYPE_PUBLIC_KEY);
|
---|
| 4800 | #ifndef IGNORE_NAME_CONSTRAINTS
|
---|
| 4801 | if (signer->permittedNames)
|
---|
| 4802 | FreeNameSubtrees(signer->permittedNames, heap);
|
---|
| 4803 | if (signer->excludedNames)
|
---|
| 4804 | FreeNameSubtrees(signer->excludedNames, heap);
|
---|
| 4805 | #endif
|
---|
| 4806 | XFREE(signer, heap, DYNAMIC_TYPE_SIGNER);
|
---|
| 4807 |
|
---|
| 4808 | (void)heap;
|
---|
| 4809 | }
|
---|
| 4810 |
|
---|
| 4811 |
|
---|
| 4812 | /* Free the whole singer table with number of rows */
|
---|
| 4813 | void FreeSignerTable(Signer** table, int rows, void* heap)
|
---|
| 4814 | {
|
---|
| 4815 | int i;
|
---|
| 4816 |
|
---|
| 4817 | for (i = 0; i < rows; i++) {
|
---|
| 4818 | Signer* signer = table[i];
|
---|
| 4819 | while (signer) {
|
---|
| 4820 | Signer* next = signer->next;
|
---|
| 4821 | FreeSigner(signer, heap);
|
---|
| 4822 | signer = next;
|
---|
| 4823 | }
|
---|
| 4824 | table[i] = NULL;
|
---|
| 4825 | }
|
---|
| 4826 | }
|
---|
| 4827 |
|
---|
| 4828 |
|
---|
| 4829 | WOLFSSL_LOCAL int SetMyVersion(word32 version, byte* output, int header)
|
---|
| 4830 | {
|
---|
| 4831 | int i = 0;
|
---|
| 4832 |
|
---|
| 4833 | if (output == NULL)
|
---|
| 4834 | return BAD_FUNC_ARG;
|
---|
| 4835 |
|
---|
| 4836 | if (header) {
|
---|
| 4837 | output[i++] = ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED;
|
---|
| 4838 | output[i++] = ASN_BIT_STRING;
|
---|
| 4839 | }
|
---|
| 4840 | output[i++] = ASN_INTEGER;
|
---|
| 4841 | output[i++] = 0x01;
|
---|
| 4842 | output[i++] = (byte)version;
|
---|
| 4843 |
|
---|
| 4844 | return i;
|
---|
| 4845 | }
|
---|
| 4846 |
|
---|
| 4847 |
|
---|
| 4848 | WOLFSSL_LOCAL int SetSerialNumber(const byte* sn, word32 snSz, byte* output)
|
---|
| 4849 | {
|
---|
| 4850 | int result = 0;
|
---|
| 4851 |
|
---|
| 4852 | WOLFSSL_ENTER("SetSerialNumber");
|
---|
| 4853 |
|
---|
| 4854 | if (sn == NULL || output == NULL)
|
---|
| 4855 | return BAD_FUNC_ARG;
|
---|
| 4856 |
|
---|
| 4857 | if (snSz <= EXTERNAL_SERIAL_SIZE) {
|
---|
| 4858 | output[0] = ASN_INTEGER;
|
---|
| 4859 | /* The serial number is always positive. When encoding the
|
---|
| 4860 | * INTEGER, if the MSB is 1, add a padding zero to keep the
|
---|
| 4861 | * number positive. */
|
---|
| 4862 | if (sn[0] & 0x80) {
|
---|
| 4863 | output[1] = (byte)snSz + 1;
|
---|
| 4864 | output[2] = 0;
|
---|
| 4865 | XMEMCPY(&output[3], sn, snSz);
|
---|
| 4866 | result = snSz + 3;
|
---|
| 4867 | }
|
---|
| 4868 | else {
|
---|
| 4869 | output[1] = (byte)snSz;
|
---|
| 4870 | XMEMCPY(&output[2], sn, snSz);
|
---|
| 4871 | result = snSz + 2;
|
---|
| 4872 | }
|
---|
| 4873 | }
|
---|
| 4874 | return result;
|
---|
| 4875 | }
|
---|
| 4876 |
|
---|
| 4877 |
|
---|
| 4878 |
|
---|
| 4879 | const char* BEGIN_CERT = "-----BEGIN CERTIFICATE-----";
|
---|
| 4880 | const char* END_CERT = "-----END CERTIFICATE-----";
|
---|
| 4881 | const char* BEGIN_CERT_REQ = "-----BEGIN CERTIFICATE REQUEST-----";
|
---|
| 4882 | const char* END_CERT_REQ = "-----END CERTIFICATE REQUEST-----";
|
---|
| 4883 | const char* BEGIN_DH_PARAM = "-----BEGIN DH PARAMETERS-----";
|
---|
| 4884 | const char* END_DH_PARAM = "-----END DH PARAMETERS-----";
|
---|
| 4885 | const char* BEGIN_X509_CRL = "-----BEGIN X509 CRL-----";
|
---|
| 4886 | const char* END_X509_CRL = "-----END X509 CRL-----";
|
---|
| 4887 | const char* BEGIN_RSA_PRIV = "-----BEGIN RSA PRIVATE KEY-----";
|
---|
| 4888 | const char* END_RSA_PRIV = "-----END RSA PRIVATE KEY-----";
|
---|
| 4889 | const char* BEGIN_PRIV_KEY = "-----BEGIN PRIVATE KEY-----";
|
---|
| 4890 | const char* END_PRIV_KEY = "-----END PRIVATE KEY-----";
|
---|
| 4891 | const char* BEGIN_ENC_PRIV_KEY = "-----BEGIN ENCRYPTED PRIVATE KEY-----";
|
---|
| 4892 | const char* END_ENC_PRIV_KEY = "-----END ENCRYPTED PRIVATE KEY-----";
|
---|
| 4893 | const char* BEGIN_EC_PRIV = "-----BEGIN EC PRIVATE KEY-----";
|
---|
| 4894 | const char* END_EC_PRIV = "-----END EC PRIVATE KEY-----";
|
---|
| 4895 | const char* BEGIN_DSA_PRIV = "-----BEGIN DSA PRIVATE KEY-----";
|
---|
| 4896 | const char* END_DSA_PRIV = "-----END DSA PRIVATE KEY-----";
|
---|
| 4897 | const char* BEGIN_PUB_KEY = "-----BEGIN PUBLIC KEY-----";
|
---|
| 4898 | const char* END_PUB_KEY = "-----END PUBLIC KEY-----";
|
---|
| 4899 |
|
---|
| 4900 | #if defined(WOLFSSL_KEY_GEN) || defined(WOLFSSL_CERT_GEN)
|
---|
| 4901 |
|
---|
| 4902 | /* Used for compatibility API */
|
---|
| 4903 | int wc_DerToPem(const byte* der, word32 derSz,
|
---|
| 4904 | byte* output, word32 outSz, int type)
|
---|
| 4905 | {
|
---|
| 4906 | return wc_DerToPemEx(der, derSz, output, outSz, NULL, type);
|
---|
| 4907 | }
|
---|
| 4908 |
|
---|
| 4909 | /* convert der buffer to pem into output, can't do inplace, der and output
|
---|
| 4910 | need to be different */
|
---|
| 4911 | int wc_DerToPemEx(const byte* der, word32 derSz, byte* output, word32 outSz,
|
---|
| 4912 | byte *cipher_info, int type)
|
---|
| 4913 | {
|
---|
| 4914 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 4915 | char* header = NULL;
|
---|
| 4916 | char* footer = NULL;
|
---|
| 4917 | #else
|
---|
| 4918 | char header[40 + HEADER_ENCRYPTED_KEY_SIZE];
|
---|
| 4919 | char footer[40];
|
---|
| 4920 | #endif
|
---|
| 4921 |
|
---|
| 4922 | int headerLen = 40 + HEADER_ENCRYPTED_KEY_SIZE;
|
---|
| 4923 | int footerLen = 40;
|
---|
| 4924 | int i;
|
---|
| 4925 | int err;
|
---|
| 4926 | int outLen; /* return length or error */
|
---|
| 4927 |
|
---|
| 4928 | if (der == output) /* no in place conversion */
|
---|
| 4929 | return BAD_FUNC_ARG;
|
---|
| 4930 |
|
---|
| 4931 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 4932 | header = (char*)XMALLOC(headerLen, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 4933 | if (header == NULL)
|
---|
| 4934 | return MEMORY_E;
|
---|
| 4935 |
|
---|
| 4936 | footer = (char*)XMALLOC(footerLen, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 4937 | if (footer == NULL) {
|
---|
| 4938 | XFREE(header, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 4939 | return MEMORY_E;
|
---|
| 4940 | }
|
---|
| 4941 | #endif
|
---|
| 4942 | if (type == CERT_TYPE) {
|
---|
| 4943 | XSTRNCPY(header, BEGIN_CERT, headerLen);
|
---|
| 4944 | XSTRNCAT(header, "\n", 1);
|
---|
| 4945 |
|
---|
| 4946 | XSTRNCPY(footer, END_CERT, footerLen);
|
---|
| 4947 | XSTRNCAT(footer, "\n", 1);
|
---|
| 4948 | }
|
---|
| 4949 | else if (type == PRIVATEKEY_TYPE) {
|
---|
| 4950 | XSTRNCPY(header, BEGIN_RSA_PRIV, headerLen);
|
---|
| 4951 | XSTRNCAT(header, "\n", 1);
|
---|
| 4952 |
|
---|
| 4953 | XSTRNCPY(footer, END_RSA_PRIV, footerLen);
|
---|
| 4954 | XSTRNCAT(footer, "\n", 1);
|
---|
| 4955 | }
|
---|
| 4956 | #ifndef NO_DSA
|
---|
| 4957 | else if (type == DSA_PRIVATEKEY_TYPE) {
|
---|
| 4958 | XSTRNCPY(header, BEGIN_DSA_PRIV, headerLen);
|
---|
| 4959 | XSTRNCAT(header, "\n", 1);
|
---|
| 4960 |
|
---|
| 4961 | XSTRNCPY(footer, END_DSA_PRIV, footerLen);
|
---|
| 4962 | XSTRNCAT(footer, "\n", 1);
|
---|
| 4963 | }
|
---|
| 4964 | #endif
|
---|
| 4965 | #ifdef HAVE_ECC
|
---|
| 4966 | else if (type == ECC_PRIVATEKEY_TYPE) {
|
---|
| 4967 | XSTRNCPY(header, BEGIN_EC_PRIV, headerLen);
|
---|
| 4968 | XSTRNCAT(header, "\n", 1);
|
---|
| 4969 |
|
---|
| 4970 | XSTRNCPY(footer, END_EC_PRIV, footerLen);
|
---|
| 4971 | XSTRNCAT(footer, "\n", 1);
|
---|
| 4972 | }
|
---|
| 4973 | #endif
|
---|
| 4974 | #ifdef WOLFSSL_CERT_REQ
|
---|
| 4975 | else if (type == CERTREQ_TYPE)
|
---|
| 4976 | {
|
---|
| 4977 | XSTRNCPY(header, BEGIN_CERT_REQ, headerLen);
|
---|
| 4978 | XSTRNCAT(header, "\n", 1);
|
---|
| 4979 |
|
---|
| 4980 | XSTRNCPY(footer, END_CERT_REQ, footerLen);
|
---|
| 4981 | XSTRNCAT(footer, "\n", 1);
|
---|
| 4982 | }
|
---|
| 4983 | #endif
|
---|
| 4984 | else {
|
---|
| 4985 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 4986 | XFREE(header, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 4987 | XFREE(footer, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 4988 | #endif
|
---|
| 4989 | return BAD_FUNC_ARG;
|
---|
| 4990 | }
|
---|
| 4991 |
|
---|
| 4992 | /* extra header information for encrypted key */
|
---|
| 4993 | if (cipher_info != NULL) {
|
---|
| 4994 | XSTRNCAT(header, "Proc-Type: 4,ENCRYPTED\n", 23);
|
---|
| 4995 | XSTRNCAT(header, "DEK-Info: ", 10);
|
---|
| 4996 | XSTRNCAT(header, (char*)cipher_info, XSTRLEN((char*)cipher_info));
|
---|
| 4997 | XSTRNCAT(header, "\n\n", 2);
|
---|
| 4998 | }
|
---|
| 4999 |
|
---|
| 5000 | headerLen = (int)XSTRLEN(header);
|
---|
| 5001 | footerLen = (int)XSTRLEN(footer);
|
---|
| 5002 |
|
---|
| 5003 | if (!der || !output) {
|
---|
| 5004 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5005 | XFREE(header, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5006 | XFREE(footer, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5007 | #endif
|
---|
| 5008 | return BAD_FUNC_ARG;
|
---|
| 5009 | }
|
---|
| 5010 |
|
---|
| 5011 | /* don't even try if outSz too short */
|
---|
| 5012 | if (outSz < headerLen + footerLen + derSz) {
|
---|
| 5013 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5014 | XFREE(header, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5015 | XFREE(footer, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5016 | #endif
|
---|
| 5017 | return BAD_FUNC_ARG;
|
---|
| 5018 | }
|
---|
| 5019 |
|
---|
| 5020 | /* header */
|
---|
| 5021 | XMEMCPY(output, header, headerLen);
|
---|
| 5022 | i = headerLen;
|
---|
| 5023 |
|
---|
| 5024 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5025 | XFREE(header, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5026 | #endif
|
---|
| 5027 |
|
---|
| 5028 | /* body */
|
---|
| 5029 | outLen = outSz - (headerLen + footerLen); /* input to Base64_Encode */
|
---|
| 5030 | if ( (err = Base64_Encode(der, derSz, output + i, (word32*)&outLen)) < 0) {
|
---|
| 5031 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5032 | XFREE(footer, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5033 | #endif
|
---|
| 5034 | return err;
|
---|
| 5035 | }
|
---|
| 5036 | i += outLen;
|
---|
| 5037 |
|
---|
| 5038 | /* footer */
|
---|
| 5039 | if ( (i + footerLen) > (int)outSz) {
|
---|
| 5040 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5041 | XFREE(footer, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5042 | #endif
|
---|
| 5043 | return BAD_FUNC_ARG;
|
---|
| 5044 | }
|
---|
| 5045 | XMEMCPY(output + i, footer, footerLen);
|
---|
| 5046 |
|
---|
| 5047 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5048 | XFREE(footer, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5049 | #endif
|
---|
| 5050 |
|
---|
| 5051 | return outLen + headerLen + footerLen;
|
---|
| 5052 | }
|
---|
| 5053 |
|
---|
| 5054 | #endif /* WOLFSSL_KEY_GEN || WOLFSSL_CERT_GEN */
|
---|
| 5055 |
|
---|
| 5056 | #if !defined(NO_RSA) && (defined(WOLFSSL_CERT_GEN) || (defined(WOLFSSL_KEY_GEN) && !defined(HAVE_USER_RSA)))
|
---|
| 5057 | /* USER RSA ifdef portions used instead of refactor in consideration for
|
---|
| 5058 | possible fips build */
|
---|
| 5059 | /* Write a public RSA key to output */
|
---|
| 5060 | static int SetRsaPublicKey(byte* output, RsaKey* key,
|
---|
| 5061 | int outLen, int with_header)
|
---|
| 5062 | {
|
---|
| 5063 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5064 | byte* n = NULL;
|
---|
| 5065 | byte* e = NULL;
|
---|
| 5066 | #else
|
---|
| 5067 | byte n[MAX_RSA_INT_SZ];
|
---|
| 5068 | byte e[MAX_RSA_E_SZ];
|
---|
| 5069 | #endif
|
---|
| 5070 | byte seq[MAX_SEQ_SZ];
|
---|
| 5071 | byte len[MAX_LENGTH_SZ + 1]; /* trailing 0 */
|
---|
| 5072 | int nSz;
|
---|
| 5073 | int eSz;
|
---|
| 5074 | int seqSz;
|
---|
| 5075 | int lenSz;
|
---|
| 5076 | int idx;
|
---|
| 5077 | int rawLen;
|
---|
| 5078 | int leadingBit;
|
---|
| 5079 | int err;
|
---|
| 5080 |
|
---|
| 5081 | if (output == NULL || key == NULL || outLen < MAX_SEQ_SZ)
|
---|
| 5082 | return BAD_FUNC_ARG;
|
---|
| 5083 |
|
---|
| 5084 | /* n */
|
---|
| 5085 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5086 | n = (byte*)XMALLOC(MAX_RSA_INT_SZ, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5087 | if (n == NULL)
|
---|
| 5088 | return MEMORY_E;
|
---|
| 5089 | #endif
|
---|
| 5090 |
|
---|
| 5091 | #ifdef HAVE_USER_RSA
|
---|
| 5092 | leadingBit = wc_Rsa_leading_bit(key->n);
|
---|
| 5093 | rawLen = wc_Rsa_unsigned_bin_size(key->n) + leadingBit;
|
---|
| 5094 | #else
|
---|
| 5095 | leadingBit = mp_leading_bit(&key->n);
|
---|
| 5096 | rawLen = mp_unsigned_bin_size(&key->n) + leadingBit;
|
---|
| 5097 | #endif
|
---|
| 5098 | n[0] = ASN_INTEGER;
|
---|
| 5099 | nSz = SetLength(rawLen, n + 1) + 1; /* int tag */
|
---|
| 5100 |
|
---|
| 5101 | if ( (nSz + rawLen) < MAX_RSA_INT_SZ) {
|
---|
| 5102 | if (leadingBit)
|
---|
| 5103 | n[nSz] = 0;
|
---|
| 5104 | #ifdef HAVE_USER_RSA
|
---|
| 5105 | err = wc_Rsa_to_unsigned_bin(key->n, n + nSz, rawLen);
|
---|
| 5106 | #else
|
---|
| 5107 | err = mp_to_unsigned_bin(&key->n, n + nSz + leadingBit);
|
---|
| 5108 | #endif
|
---|
| 5109 | if (err == MP_OKAY)
|
---|
| 5110 | nSz += rawLen;
|
---|
| 5111 | else {
|
---|
| 5112 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5113 | XFREE(n, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5114 | #endif
|
---|
| 5115 | return MP_TO_E;
|
---|
| 5116 | }
|
---|
| 5117 | }
|
---|
| 5118 | else {
|
---|
| 5119 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5120 | XFREE(n, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5121 | #endif
|
---|
| 5122 | return BUFFER_E;
|
---|
| 5123 | }
|
---|
| 5124 |
|
---|
| 5125 | /* e */
|
---|
| 5126 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5127 | e = (byte*)XMALLOC(MAX_RSA_E_SZ, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5128 | if (e == NULL) {
|
---|
| 5129 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5130 | XFREE(n, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5131 | #endif
|
---|
| 5132 | return MEMORY_E;
|
---|
| 5133 | }
|
---|
| 5134 | #endif
|
---|
| 5135 |
|
---|
| 5136 | #ifdef HAVE_USER_RSA
|
---|
| 5137 | leadingBit = wc_Rsa_leading_bit(key->e);
|
---|
| 5138 | rawLen = wc_Rsa_unsigned_bin_size(key->e) + leadingBit;
|
---|
| 5139 | #else
|
---|
| 5140 | leadingBit = mp_leading_bit(&key->e);
|
---|
| 5141 | rawLen = mp_unsigned_bin_size(&key->e) + leadingBit;
|
---|
| 5142 | #endif
|
---|
| 5143 | e[0] = ASN_INTEGER;
|
---|
| 5144 | eSz = SetLength(rawLen, e + 1) + 1; /* int tag */
|
---|
| 5145 |
|
---|
| 5146 | if ( (eSz + rawLen) < MAX_RSA_E_SZ) {
|
---|
| 5147 | if (leadingBit)
|
---|
| 5148 | e[eSz] = 0;
|
---|
| 5149 | #ifdef HAVE_USER_RSA
|
---|
| 5150 | err = wc_Rsa_to_unsigned_bin(key->e, e + eSz, rawLen);
|
---|
| 5151 | #else
|
---|
| 5152 | err = mp_to_unsigned_bin(&key->e, e + eSz + leadingBit);
|
---|
| 5153 | #endif
|
---|
| 5154 | if (err == MP_OKAY)
|
---|
| 5155 | eSz += rawLen;
|
---|
| 5156 | else {
|
---|
| 5157 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5158 | XFREE(n, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5159 | XFREE(e, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5160 | #endif
|
---|
| 5161 | return MP_TO_E;
|
---|
| 5162 | }
|
---|
| 5163 | }
|
---|
| 5164 | else {
|
---|
| 5165 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5166 | XFREE(n, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5167 | XFREE(e, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5168 | #endif
|
---|
| 5169 | return BUFFER_E;
|
---|
| 5170 | }
|
---|
| 5171 |
|
---|
| 5172 | seqSz = SetSequence(nSz + eSz, seq);
|
---|
| 5173 |
|
---|
| 5174 | /* check output size */
|
---|
| 5175 | if ( (seqSz + nSz + eSz) > outLen) {
|
---|
| 5176 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5177 | XFREE(n, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5178 | XFREE(e, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5179 | #endif
|
---|
| 5180 | return BUFFER_E;
|
---|
| 5181 | }
|
---|
| 5182 |
|
---|
| 5183 | /* headers */
|
---|
| 5184 | if (with_header) {
|
---|
| 5185 | int algoSz;
|
---|
| 5186 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5187 | byte* algo = NULL;
|
---|
| 5188 |
|
---|
| 5189 | algo = (byte*)XMALLOC(MAX_ALGO_SZ, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5190 | if (algo == NULL) {
|
---|
| 5191 | XFREE(n, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5192 | XFREE(e, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5193 | return MEMORY_E;
|
---|
| 5194 | }
|
---|
| 5195 | #else
|
---|
| 5196 | byte algo[MAX_ALGO_SZ];
|
---|
| 5197 | #endif
|
---|
| 5198 | algoSz = SetAlgoID(RSAk, algo, keyType, 0);
|
---|
| 5199 | lenSz = SetLength(seqSz + nSz + eSz + 1, len);
|
---|
| 5200 | len[lenSz++] = 0; /* trailing 0 */
|
---|
| 5201 |
|
---|
| 5202 | /* write, 1 is for ASN_BIT_STRING */
|
---|
| 5203 | idx = SetSequence(nSz + eSz + seqSz + lenSz + 1 + algoSz, output);
|
---|
| 5204 |
|
---|
| 5205 | /* check output size */
|
---|
| 5206 | if ( (idx + algoSz + 1 + lenSz + seqSz + nSz + eSz) > outLen) {
|
---|
| 5207 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5208 | XFREE(n, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5209 | XFREE(e, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5210 | XFREE(algo, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5211 | #endif
|
---|
| 5212 |
|
---|
| 5213 | return BUFFER_E;
|
---|
| 5214 | }
|
---|
| 5215 |
|
---|
| 5216 | /* algo */
|
---|
| 5217 | XMEMCPY(output + idx, algo, algoSz);
|
---|
| 5218 | idx += algoSz;
|
---|
| 5219 | /* bit string */
|
---|
| 5220 | output[idx++] = ASN_BIT_STRING;
|
---|
| 5221 | /* length */
|
---|
| 5222 | XMEMCPY(output + idx, len, lenSz);
|
---|
| 5223 | idx += lenSz;
|
---|
| 5224 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5225 | XFREE(algo, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5226 | #endif
|
---|
| 5227 | }
|
---|
| 5228 | else
|
---|
| 5229 | idx = 0;
|
---|
| 5230 |
|
---|
| 5231 | /* seq */
|
---|
| 5232 | XMEMCPY(output + idx, seq, seqSz);
|
---|
| 5233 | idx += seqSz;
|
---|
| 5234 | /* n */
|
---|
| 5235 | XMEMCPY(output + idx, n, nSz);
|
---|
| 5236 | idx += nSz;
|
---|
| 5237 | /* e */
|
---|
| 5238 | XMEMCPY(output + idx, e, eSz);
|
---|
| 5239 | idx += eSz;
|
---|
| 5240 |
|
---|
| 5241 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5242 | XFREE(n, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5243 | XFREE(e, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5244 | #endif
|
---|
| 5245 |
|
---|
| 5246 | return idx;
|
---|
| 5247 | }
|
---|
| 5248 | #endif /* !defined(NO_RSA) && (defined(WOLFSSL_CERT_GEN) ||
|
---|
| 5249 | defined(WOLFSSL_KEY_GEN)) */
|
---|
| 5250 |
|
---|
| 5251 |
|
---|
| 5252 | #if defined(WOLFSSL_KEY_GEN) && !defined(NO_RSA) && !defined(HAVE_USER_RSA)
|
---|
| 5253 |
|
---|
| 5254 |
|
---|
| 5255 | static mp_int* GetRsaInt(RsaKey* key, int idx)
|
---|
| 5256 | {
|
---|
| 5257 | if (idx == 0)
|
---|
| 5258 | return &key->n;
|
---|
| 5259 | if (idx == 1)
|
---|
| 5260 | return &key->e;
|
---|
| 5261 | if (idx == 2)
|
---|
| 5262 | return &key->d;
|
---|
| 5263 | if (idx == 3)
|
---|
| 5264 | return &key->p;
|
---|
| 5265 | if (idx == 4)
|
---|
| 5266 | return &key->q;
|
---|
| 5267 | if (idx == 5)
|
---|
| 5268 | return &key->dP;
|
---|
| 5269 | if (idx == 6)
|
---|
| 5270 | return &key->dQ;
|
---|
| 5271 | if (idx == 7)
|
---|
| 5272 | return &key->u;
|
---|
| 5273 |
|
---|
| 5274 | return NULL;
|
---|
| 5275 | }
|
---|
| 5276 |
|
---|
| 5277 |
|
---|
| 5278 | /* Release Tmp RSA resources */
|
---|
| 5279 | static INLINE void FreeTmpRsas(byte** tmps, void* heap)
|
---|
| 5280 | {
|
---|
| 5281 | int i;
|
---|
| 5282 |
|
---|
| 5283 | (void)heap;
|
---|
| 5284 |
|
---|
| 5285 | for (i = 0; i < RSA_INTS; i++)
|
---|
| 5286 | XFREE(tmps[i], heap, DYNAMIC_TYPE_RSA);
|
---|
| 5287 | }
|
---|
| 5288 |
|
---|
| 5289 |
|
---|
| 5290 | /* Convert RsaKey key to DER format, write to output (inLen), return bytes
|
---|
| 5291 | written */
|
---|
| 5292 | int wc_RsaKeyToDer(RsaKey* key, byte* output, word32 inLen)
|
---|
| 5293 | {
|
---|
| 5294 | word32 seqSz, verSz, rawLen, intTotalLen = 0;
|
---|
| 5295 | word32 sizes[RSA_INTS];
|
---|
| 5296 | int i, j, outLen, ret = 0, lbit;
|
---|
| 5297 |
|
---|
| 5298 | byte seq[MAX_SEQ_SZ];
|
---|
| 5299 | byte ver[MAX_VERSION_SZ];
|
---|
| 5300 | byte* tmps[RSA_INTS];
|
---|
| 5301 |
|
---|
| 5302 | if (!key || !output)
|
---|
| 5303 | return BAD_FUNC_ARG;
|
---|
| 5304 |
|
---|
| 5305 | if (key->type != RSA_PRIVATE)
|
---|
| 5306 | return BAD_FUNC_ARG;
|
---|
| 5307 |
|
---|
| 5308 | for (i = 0; i < RSA_INTS; i++)
|
---|
| 5309 | tmps[i] = NULL;
|
---|
| 5310 |
|
---|
| 5311 | /* write all big ints from key to DER tmps */
|
---|
| 5312 | for (i = 0; i < RSA_INTS; i++) {
|
---|
| 5313 | mp_int* keyInt = GetRsaInt(key, i);
|
---|
| 5314 |
|
---|
| 5315 | /* leading zero */
|
---|
| 5316 | if ((mp_count_bits(keyInt) & 7) == 0 || mp_iszero(keyInt) == MP_YES)
|
---|
| 5317 | lbit = 1;
|
---|
| 5318 | else
|
---|
| 5319 | lbit = 0;
|
---|
| 5320 |
|
---|
| 5321 | rawLen = mp_unsigned_bin_size(keyInt) + lbit;
|
---|
| 5322 |
|
---|
| 5323 | tmps[i] = (byte*)XMALLOC(rawLen + MAX_SEQ_SZ, key->heap,
|
---|
| 5324 | DYNAMIC_TYPE_RSA);
|
---|
| 5325 | if (tmps[i] == NULL) {
|
---|
| 5326 | ret = MEMORY_E;
|
---|
| 5327 | break;
|
---|
| 5328 | }
|
---|
| 5329 |
|
---|
| 5330 | tmps[i][0] = ASN_INTEGER;
|
---|
| 5331 | sizes[i] = SetLength(rawLen, tmps[i] + 1) + 1 + lbit; /* tag & lbit */
|
---|
| 5332 |
|
---|
| 5333 | if (sizes[i] <= MAX_SEQ_SZ) {
|
---|
| 5334 | int err;
|
---|
| 5335 |
|
---|
| 5336 | /* leading zero */
|
---|
| 5337 | if (lbit)
|
---|
| 5338 | tmps[i][sizes[i]-1] = 0x00;
|
---|
| 5339 |
|
---|
| 5340 | err = mp_to_unsigned_bin(keyInt, tmps[i] + sizes[i]);
|
---|
| 5341 | if (err == MP_OKAY) {
|
---|
| 5342 | sizes[i] += (rawLen-lbit); /* lbit included in rawLen */
|
---|
| 5343 | intTotalLen += sizes[i];
|
---|
| 5344 | }
|
---|
| 5345 | else {
|
---|
| 5346 | ret = err;
|
---|
| 5347 | break;
|
---|
| 5348 | }
|
---|
| 5349 | }
|
---|
| 5350 | else {
|
---|
| 5351 | ret = ASN_INPUT_E;
|
---|
| 5352 | break;
|
---|
| 5353 | }
|
---|
| 5354 | }
|
---|
| 5355 |
|
---|
| 5356 | if (ret != 0) {
|
---|
| 5357 | FreeTmpRsas(tmps, key->heap);
|
---|
| 5358 | return ret;
|
---|
| 5359 | }
|
---|
| 5360 |
|
---|
| 5361 | /* make headers */
|
---|
| 5362 | verSz = SetMyVersion(0, ver, FALSE);
|
---|
| 5363 | seqSz = SetSequence(verSz + intTotalLen, seq);
|
---|
| 5364 |
|
---|
| 5365 | outLen = seqSz + verSz + intTotalLen;
|
---|
| 5366 | if (outLen > (int)inLen)
|
---|
| 5367 | return BAD_FUNC_ARG;
|
---|
| 5368 |
|
---|
| 5369 | /* write to output */
|
---|
| 5370 | XMEMCPY(output, seq, seqSz);
|
---|
| 5371 | j = seqSz;
|
---|
| 5372 | XMEMCPY(output + j, ver, verSz);
|
---|
| 5373 | j += verSz;
|
---|
| 5374 |
|
---|
| 5375 | for (i = 0; i < RSA_INTS; i++) {
|
---|
| 5376 | XMEMCPY(output + j, tmps[i], sizes[i]);
|
---|
| 5377 | j += sizes[i];
|
---|
| 5378 | }
|
---|
| 5379 | FreeTmpRsas(tmps, key->heap);
|
---|
| 5380 |
|
---|
| 5381 | return outLen;
|
---|
| 5382 | }
|
---|
| 5383 |
|
---|
| 5384 |
|
---|
| 5385 | /* Convert Rsa Public key to DER format, write to output (inLen), return bytes
|
---|
| 5386 | written */
|
---|
| 5387 | int wc_RsaKeyToPublicDer(RsaKey* key, byte* output, word32 inLen)
|
---|
| 5388 | {
|
---|
| 5389 | return SetRsaPublicKey(output, key, inLen, 1);
|
---|
| 5390 | }
|
---|
| 5391 |
|
---|
| 5392 | #endif /* WOLFSSL_KEY_GEN && !NO_RSA */
|
---|
| 5393 |
|
---|
| 5394 |
|
---|
| 5395 | #if defined(WOLFSSL_CERT_GEN) && !defined(NO_RSA)
|
---|
| 5396 |
|
---|
| 5397 |
|
---|
| 5398 | #ifdef min
|
---|
| 5399 | #define WOLFSSL_HAVE_MIN
|
---|
| 5400 | #endif
|
---|
| 5401 | #ifndef WOLFSSL_HAVE_MIN
|
---|
| 5402 | #define WOLFSSL_HAVE_MIN
|
---|
| 5403 |
|
---|
| 5404 | static INLINE word32 min(word32 a, word32 b)
|
---|
| 5405 | {
|
---|
| 5406 | return a > b ? b : a;
|
---|
| 5407 | }
|
---|
| 5408 |
|
---|
| 5409 | #endif /* WOLFSSL_HAVE_MIN */
|
---|
| 5410 |
|
---|
| 5411 |
|
---|
| 5412 | /* Initialize and Set Certficate defaults:
|
---|
| 5413 | version = 3 (0x2)
|
---|
| 5414 | serial = 0
|
---|
| 5415 | sigType = SHA_WITH_RSA
|
---|
| 5416 | issuer = blank
|
---|
| 5417 | daysValid = 500
|
---|
| 5418 | selfSigned = 1 (true) use subject as issuer
|
---|
| 5419 | subject = blank
|
---|
| 5420 | */
|
---|
| 5421 | void wc_InitCert(Cert* cert)
|
---|
| 5422 | {
|
---|
| 5423 | cert->version = 2; /* version 3 is hex 2 */
|
---|
| 5424 | cert->sigType = CTC_SHAwRSA;
|
---|
| 5425 | cert->daysValid = 500;
|
---|
| 5426 | cert->selfSigned = 1;
|
---|
| 5427 | cert->isCA = 0;
|
---|
| 5428 | cert->bodySz = 0;
|
---|
| 5429 | #ifdef WOLFSSL_ALT_NAMES
|
---|
| 5430 | cert->altNamesSz = 0;
|
---|
| 5431 | cert->beforeDateSz = 0;
|
---|
| 5432 | cert->afterDateSz = 0;
|
---|
| 5433 | #endif
|
---|
| 5434 | #ifdef WOLFSSL_CERT_EXT
|
---|
| 5435 | cert->skidSz = 0;
|
---|
| 5436 | cert->akidSz = 0;
|
---|
| 5437 | cert->keyUsage = 0;
|
---|
| 5438 | cert->certPoliciesNb = 0;
|
---|
| 5439 | XMEMSET(cert->akid, 0, CTC_MAX_AKID_SIZE);
|
---|
| 5440 | XMEMSET(cert->skid, 0, CTC_MAX_SKID_SIZE);
|
---|
| 5441 | XMEMSET(cert->certPolicies, 0, CTC_MAX_CERTPOL_NB*CTC_MAX_CERTPOL_SZ);
|
---|
| 5442 | #endif
|
---|
| 5443 | cert->keyType = RSA_KEY;
|
---|
| 5444 | XMEMSET(cert->serial, 0, CTC_SERIAL_SIZE);
|
---|
| 5445 |
|
---|
| 5446 | cert->issuer.country[0] = '\0';
|
---|
| 5447 | cert->issuer.countryEnc = CTC_PRINTABLE;
|
---|
| 5448 | cert->issuer.state[0] = '\0';
|
---|
| 5449 | cert->issuer.stateEnc = CTC_UTF8;
|
---|
| 5450 | cert->issuer.locality[0] = '\0';
|
---|
| 5451 | cert->issuer.localityEnc = CTC_UTF8;
|
---|
| 5452 | cert->issuer.sur[0] = '\0';
|
---|
| 5453 | cert->issuer.surEnc = CTC_UTF8;
|
---|
| 5454 | cert->issuer.org[0] = '\0';
|
---|
| 5455 | cert->issuer.orgEnc = CTC_UTF8;
|
---|
| 5456 | cert->issuer.unit[0] = '\0';
|
---|
| 5457 | cert->issuer.unitEnc = CTC_UTF8;
|
---|
| 5458 | cert->issuer.commonName[0] = '\0';
|
---|
| 5459 | cert->issuer.commonNameEnc = CTC_UTF8;
|
---|
| 5460 | cert->issuer.email[0] = '\0';
|
---|
| 5461 |
|
---|
| 5462 | cert->subject.country[0] = '\0';
|
---|
| 5463 | cert->subject.countryEnc = CTC_PRINTABLE;
|
---|
| 5464 | cert->subject.state[0] = '\0';
|
---|
| 5465 | cert->subject.stateEnc = CTC_UTF8;
|
---|
| 5466 | cert->subject.locality[0] = '\0';
|
---|
| 5467 | cert->subject.localityEnc = CTC_UTF8;
|
---|
| 5468 | cert->subject.sur[0] = '\0';
|
---|
| 5469 | cert->subject.surEnc = CTC_UTF8;
|
---|
| 5470 | cert->subject.org[0] = '\0';
|
---|
| 5471 | cert->subject.orgEnc = CTC_UTF8;
|
---|
| 5472 | cert->subject.unit[0] = '\0';
|
---|
| 5473 | cert->subject.unitEnc = CTC_UTF8;
|
---|
| 5474 | cert->subject.commonName[0] = '\0';
|
---|
| 5475 | cert->subject.commonNameEnc = CTC_UTF8;
|
---|
| 5476 | cert->subject.email[0] = '\0';
|
---|
| 5477 |
|
---|
| 5478 | #ifdef WOLFSSL_CERT_REQ
|
---|
| 5479 | cert->challengePw[0] ='\0';
|
---|
| 5480 | #endif
|
---|
| 5481 | }
|
---|
| 5482 |
|
---|
| 5483 |
|
---|
| 5484 | /* DER encoded x509 Certificate */
|
---|
| 5485 | typedef struct DerCert {
|
---|
| 5486 | byte size[MAX_LENGTH_SZ]; /* length encoded */
|
---|
| 5487 | byte version[MAX_VERSION_SZ]; /* version encoded */
|
---|
| 5488 | byte serial[CTC_SERIAL_SIZE + MAX_LENGTH_SZ]; /* serial number encoded */
|
---|
| 5489 | byte sigAlgo[MAX_ALGO_SZ]; /* signature algo encoded */
|
---|
| 5490 | byte issuer[ASN_NAME_MAX]; /* issuer encoded */
|
---|
| 5491 | byte subject[ASN_NAME_MAX]; /* subject encoded */
|
---|
| 5492 | byte validity[MAX_DATE_SIZE*2 + MAX_SEQ_SZ*2]; /* before and after dates */
|
---|
| 5493 | byte publicKey[MAX_PUBLIC_KEY_SZ]; /* rsa / ntru public key encoded */
|
---|
| 5494 | byte ca[MAX_CA_SZ]; /* basic constraint CA true size */
|
---|
| 5495 | byte extensions[MAX_EXTENSIONS_SZ]; /* all extensions */
|
---|
| 5496 | #ifdef WOLFSSL_CERT_EXT
|
---|
| 5497 | byte skid[MAX_KID_SZ]; /* Subject Key Identifier extension */
|
---|
| 5498 | byte akid[MAX_KID_SZ]; /* Authority Key Identifier extension */
|
---|
| 5499 | byte keyUsage[MAX_KEYUSAGE_SZ]; /* Key Usage extension */
|
---|
| 5500 | byte certPolicies[MAX_CERTPOL_NB*MAX_CERTPOL_SZ]; /* Certificate Policies */
|
---|
| 5501 | #endif
|
---|
| 5502 | #ifdef WOLFSSL_CERT_REQ
|
---|
| 5503 | byte attrib[MAX_ATTRIB_SZ]; /* Cert req attributes encoded */
|
---|
| 5504 | #endif
|
---|
| 5505 | #ifdef WOLFSSL_ALT_NAMES
|
---|
| 5506 | byte altNames[CTC_MAX_ALT_SIZE]; /* Alternative Names encoded */
|
---|
| 5507 | #endif
|
---|
| 5508 | int sizeSz; /* encoded size length */
|
---|
| 5509 | int versionSz; /* encoded version length */
|
---|
| 5510 | int serialSz; /* encoded serial length */
|
---|
| 5511 | int sigAlgoSz; /* enocded sig alog length */
|
---|
| 5512 | int issuerSz; /* encoded issuer length */
|
---|
| 5513 | int subjectSz; /* encoded subject length */
|
---|
| 5514 | int validitySz; /* encoded validity length */
|
---|
| 5515 | int publicKeySz; /* encoded public key length */
|
---|
| 5516 | int caSz; /* encoded CA extension length */
|
---|
| 5517 | #ifdef WOLFSSL_CERT_EXT
|
---|
| 5518 | int skidSz; /* encoded SKID extension length */
|
---|
| 5519 | int akidSz; /* encoded SKID extension length */
|
---|
| 5520 | int keyUsageSz; /* encoded KeyUsage extension length */
|
---|
| 5521 | int certPoliciesSz; /* encoded CertPolicies extension length*/
|
---|
| 5522 | #endif
|
---|
| 5523 | #ifdef WOLFSSL_ALT_NAMES
|
---|
| 5524 | int altNamesSz; /* encoded AltNames extension length */
|
---|
| 5525 | #endif
|
---|
| 5526 | int extensionsSz; /* encoded extensions total length */
|
---|
| 5527 | int total; /* total encoded lengths */
|
---|
| 5528 | #ifdef WOLFSSL_CERT_REQ
|
---|
| 5529 | int attribSz;
|
---|
| 5530 | #endif
|
---|
| 5531 | } DerCert;
|
---|
| 5532 |
|
---|
| 5533 |
|
---|
| 5534 | #ifdef WOLFSSL_CERT_REQ
|
---|
| 5535 |
|
---|
| 5536 | /* Write a set header to output */
|
---|
| 5537 | static word32 SetUTF8String(word32 len, byte* output)
|
---|
| 5538 | {
|
---|
| 5539 | output[0] = ASN_UTF8STRING;
|
---|
| 5540 | return SetLength(len, output + 1) + 1;
|
---|
| 5541 | }
|
---|
| 5542 |
|
---|
| 5543 | #endif /* WOLFSSL_CERT_REQ */
|
---|
| 5544 |
|
---|
| 5545 |
|
---|
| 5546 | /* Write a serial number to output */
|
---|
| 5547 | static int SetSerial(const byte* serial, byte* output)
|
---|
| 5548 | {
|
---|
| 5549 | int length = 0;
|
---|
| 5550 |
|
---|
| 5551 | output[length++] = ASN_INTEGER;
|
---|
| 5552 | length += SetLength(CTC_SERIAL_SIZE, &output[length]);
|
---|
| 5553 | XMEMCPY(&output[length], serial, CTC_SERIAL_SIZE);
|
---|
| 5554 |
|
---|
| 5555 | return length + CTC_SERIAL_SIZE;
|
---|
| 5556 | }
|
---|
| 5557 |
|
---|
| 5558 |
|
---|
| 5559 | #ifdef HAVE_ECC
|
---|
| 5560 |
|
---|
| 5561 |
|
---|
| 5562 | /* Write a public ECC key to output */
|
---|
| 5563 | static int SetEccPublicKey(byte* output, ecc_key* key, int with_header)
|
---|
| 5564 | {
|
---|
| 5565 | byte len[MAX_LENGTH_SZ + 1]; /* trailing 0 */
|
---|
| 5566 | int algoSz;
|
---|
| 5567 | int curveSz;
|
---|
| 5568 | int lenSz;
|
---|
| 5569 | int idx;
|
---|
| 5570 | word32 pubSz = ECC_BUFSIZE;
|
---|
| 5571 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5572 | byte* algo = NULL;
|
---|
| 5573 | byte* curve = NULL;
|
---|
| 5574 | byte* pub = NULL;
|
---|
| 5575 | #else
|
---|
| 5576 | byte algo[MAX_ALGO_SZ];
|
---|
| 5577 | byte curve[MAX_ALGO_SZ];
|
---|
| 5578 | byte pub[ECC_BUFSIZE];
|
---|
| 5579 | #endif
|
---|
| 5580 |
|
---|
| 5581 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5582 | pub = (byte*)XMALLOC(ECC_BUFSIZE, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5583 | if (pub == NULL)
|
---|
| 5584 | return MEMORY_E;
|
---|
| 5585 | #endif
|
---|
| 5586 |
|
---|
| 5587 | int ret = wc_ecc_export_x963(key, pub, &pubSz);
|
---|
| 5588 | if (ret != 0) {
|
---|
| 5589 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5590 | XFREE(pub, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5591 | #endif
|
---|
| 5592 | return ret;
|
---|
| 5593 | }
|
---|
| 5594 |
|
---|
| 5595 | /* headers */
|
---|
| 5596 | if (with_header) {
|
---|
| 5597 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5598 | curve = (byte*)XMALLOC(MAX_ALGO_SZ, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5599 | if (curve == NULL) {
|
---|
| 5600 | XFREE(pub, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5601 | return MEMORY_E;
|
---|
| 5602 | }
|
---|
| 5603 | #endif
|
---|
| 5604 | curveSz = SetCurve(key, curve);
|
---|
| 5605 | if (curveSz <= 0) {
|
---|
| 5606 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5607 | XFREE(curve, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5608 | XFREE(pub, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5609 | #endif
|
---|
| 5610 | return curveSz;
|
---|
| 5611 | }
|
---|
| 5612 |
|
---|
| 5613 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5614 | algo = (byte*)XMALLOC(MAX_ALGO_SZ, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5615 | if (algo == NULL) {
|
---|
| 5616 | XFREE(curve, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5617 | XFREE(pub, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5618 | return MEMORY_E;
|
---|
| 5619 | }
|
---|
| 5620 | #endif
|
---|
| 5621 | algoSz = SetAlgoID(ECDSAk, algo, keyType, curveSz);
|
---|
| 5622 |
|
---|
| 5623 | lenSz = SetLength(pubSz + 1, len);
|
---|
| 5624 | len[lenSz++] = 0; /* trailing 0 */
|
---|
| 5625 |
|
---|
| 5626 | /* write, 1 is for ASN_BIT_STRING */
|
---|
| 5627 | idx = SetSequence(pubSz + curveSz + lenSz + 1 + algoSz, output);
|
---|
| 5628 | /* algo */
|
---|
| 5629 | XMEMCPY(output + idx, algo, algoSz);
|
---|
| 5630 | idx += algoSz;
|
---|
| 5631 | /* curve */
|
---|
| 5632 | XMEMCPY(output + idx, curve, curveSz);
|
---|
| 5633 | idx += curveSz;
|
---|
| 5634 | /* bit string */
|
---|
| 5635 | output[idx++] = ASN_BIT_STRING;
|
---|
| 5636 | /* length */
|
---|
| 5637 | XMEMCPY(output + idx, len, lenSz);
|
---|
| 5638 | idx += lenSz;
|
---|
| 5639 | }
|
---|
| 5640 | else
|
---|
| 5641 | idx = 0;
|
---|
| 5642 |
|
---|
| 5643 | /* pub */
|
---|
| 5644 | XMEMCPY(output + idx, pub, pubSz);
|
---|
| 5645 | idx += pubSz;
|
---|
| 5646 |
|
---|
| 5647 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 5648 | if (with_header) {
|
---|
| 5649 | XFREE(algo, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5650 | XFREE(curve, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5651 | }
|
---|
| 5652 | XFREE(pub, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 5653 | #endif
|
---|
| 5654 |
|
---|
| 5655 | return idx;
|
---|
| 5656 | }
|
---|
| 5657 |
|
---|
| 5658 |
|
---|
| 5659 | #endif /* HAVE_ECC */
|
---|
| 5660 |
|
---|
| 5661 |
|
---|
| 5662 | static INLINE byte itob(int number)
|
---|
| 5663 | {
|
---|
| 5664 | return (byte)number + 0x30;
|
---|
| 5665 | }
|
---|
| 5666 |
|
---|
| 5667 |
|
---|
| 5668 | /* write time to output, format */
|
---|
| 5669 | static void SetTime(struct tm* date, byte* output)
|
---|
| 5670 | {
|
---|
| 5671 | int i = 0;
|
---|
| 5672 |
|
---|
| 5673 | output[i++] = itob((date->tm_year % 10000) / 1000);
|
---|
| 5674 | output[i++] = itob((date->tm_year % 1000) / 100);
|
---|
| 5675 | output[i++] = itob((date->tm_year % 100) / 10);
|
---|
| 5676 | output[i++] = itob( date->tm_year % 10);
|
---|
| 5677 |
|
---|
| 5678 | output[i++] = itob(date->tm_mon / 10);
|
---|
| 5679 | output[i++] = itob(date->tm_mon % 10);
|
---|
| 5680 |
|
---|
| 5681 | output[i++] = itob(date->tm_mday / 10);
|
---|
| 5682 | output[i++] = itob(date->tm_mday % 10);
|
---|
| 5683 |
|
---|
| 5684 | output[i++] = itob(date->tm_hour / 10);
|
---|
| 5685 | output[i++] = itob(date->tm_hour % 10);
|
---|
| 5686 |
|
---|
| 5687 | output[i++] = itob(date->tm_min / 10);
|
---|
| 5688 | output[i++] = itob(date->tm_min % 10);
|
---|
| 5689 |
|
---|
| 5690 | output[i++] = itob(date->tm_sec / 10);
|
---|
| 5691 | output[i++] = itob(date->tm_sec % 10);
|
---|
| 5692 |
|
---|
| 5693 | output[i] = 'Z'; /* Zulu profile */
|
---|
| 5694 | }
|
---|
| 5695 |
|
---|
| 5696 |
|
---|
| 5697 | #ifdef WOLFSSL_ALT_NAMES
|
---|
| 5698 |
|
---|
| 5699 | /* Copy Dates from cert, return bytes written */
|
---|
| 5700 | static int CopyValidity(byte* output, Cert* cert)
|
---|
| 5701 | {
|
---|
| 5702 | int seqSz;
|
---|
| 5703 |
|
---|
| 5704 | WOLFSSL_ENTER("CopyValidity");
|
---|
| 5705 |
|
---|
| 5706 | /* headers and output */
|
---|
| 5707 | seqSz = SetSequence(cert->beforeDateSz + cert->afterDateSz, output);
|
---|
| 5708 | XMEMCPY(output + seqSz, cert->beforeDate, cert->beforeDateSz);
|
---|
| 5709 | XMEMCPY(output + seqSz + cert->beforeDateSz, cert->afterDate,
|
---|
| 5710 | cert->afterDateSz);
|
---|
| 5711 | return seqSz + cert->beforeDateSz + cert->afterDateSz;
|
---|
| 5712 | }
|
---|
| 5713 |
|
---|
| 5714 | #endif
|
---|
| 5715 |
|
---|
| 5716 |
|
---|
| 5717 | /* for systems where mktime() doesn't normalize fully */
|
---|
| 5718 | static void RebuildTime(time_t* in, struct tm* out)
|
---|
| 5719 | {
|
---|
| 5720 | #ifdef FREESCALE_MQX
|
---|
| 5721 | out = localtime_r(in, out);
|
---|
| 5722 | #else
|
---|
| 5723 | (void)in;
|
---|
| 5724 | (void)out;
|
---|
| 5725 | #endif
|
---|
| 5726 | }
|
---|
| 5727 |
|
---|
| 5728 |
|
---|
| 5729 | /* Set Date validity from now until now + daysValid
|
---|
| 5730 | * return size in bytes written to output, 0 on error */
|
---|
| 5731 | static int SetValidity(byte* output, int daysValid)
|
---|
| 5732 | {
|
---|
| 5733 | byte before[MAX_DATE_SIZE];
|
---|
| 5734 | byte after[MAX_DATE_SIZE];
|
---|
| 5735 |
|
---|
| 5736 | int beforeSz;
|
---|
| 5737 | int afterSz;
|
---|
| 5738 | int seqSz;
|
---|
| 5739 |
|
---|
| 5740 | time_t ticks;
|
---|
| 5741 | time_t normalTime;
|
---|
| 5742 | struct tm* now;
|
---|
| 5743 | struct tm* tmpTime = NULL;
|
---|
| 5744 | struct tm local;
|
---|
| 5745 |
|
---|
| 5746 | #if defined(FREESCALE_MQX) || defined(TIME_OVERRIDES)
|
---|
| 5747 | /* for use with gmtime_r */
|
---|
| 5748 | struct tm tmpTimeStorage;
|
---|
| 5749 | tmpTime = &tmpTimeStorage;
|
---|
| 5750 | #else
|
---|
| 5751 | (void)tmpTime;
|
---|
| 5752 | #endif
|
---|
| 5753 |
|
---|
| 5754 | ticks = XTIME(0);
|
---|
| 5755 | now = XGMTIME(&ticks, tmpTime);
|
---|
| 5756 |
|
---|
| 5757 | if (now == NULL) {
|
---|
| 5758 | WOLFSSL_MSG("XGMTIME failed");
|
---|
| 5759 | return 0; /* error */
|
---|
| 5760 | }
|
---|
| 5761 |
|
---|
| 5762 | /* before now */
|
---|
| 5763 | local = *now;
|
---|
| 5764 | before[0] = ASN_GENERALIZED_TIME;
|
---|
| 5765 | beforeSz = SetLength(ASN_GEN_TIME_SZ, before + 1) + 1; /* gen tag */
|
---|
| 5766 |
|
---|
| 5767 | /* subtract 1 day for more compliance */
|
---|
| 5768 | local.tm_mday -= 1;
|
---|
| 5769 | normalTime = mktime(&local);
|
---|
| 5770 | RebuildTime(&normalTime, &local);
|
---|
| 5771 |
|
---|
| 5772 | /* adjust */
|
---|
| 5773 | local.tm_year += 1900;
|
---|
| 5774 | local.tm_mon += 1;
|
---|
| 5775 |
|
---|
| 5776 | SetTime(&local, before + beforeSz);
|
---|
| 5777 | beforeSz += ASN_GEN_TIME_SZ;
|
---|
| 5778 |
|
---|
| 5779 | /* after now + daysValid */
|
---|
| 5780 | local = *now;
|
---|
| 5781 | after[0] = ASN_GENERALIZED_TIME;
|
---|
| 5782 | afterSz = SetLength(ASN_GEN_TIME_SZ, after + 1) + 1; /* gen tag */
|
---|
| 5783 |
|
---|
| 5784 | /* add daysValid */
|
---|
| 5785 | local.tm_mday += daysValid;
|
---|
| 5786 | normalTime = mktime(&local);
|
---|
| 5787 | RebuildTime(&normalTime, &local);
|
---|
| 5788 |
|
---|
| 5789 | /* adjust */
|
---|
| 5790 | local.tm_year += 1900;
|
---|
| 5791 | local.tm_mon += 1;
|
---|
| 5792 |
|
---|
| 5793 | SetTime(&local, after + afterSz);
|
---|
| 5794 | afterSz += ASN_GEN_TIME_SZ;
|
---|
| 5795 |
|
---|
| 5796 | /* headers and output */
|
---|
| 5797 | seqSz = SetSequence(beforeSz + afterSz, output);
|
---|
| 5798 | XMEMCPY(output + seqSz, before, beforeSz);
|
---|
| 5799 | XMEMCPY(output + seqSz + beforeSz, after, afterSz);
|
---|
| 5800 |
|
---|
| 5801 | return seqSz + beforeSz + afterSz;
|
---|
| 5802 | }
|
---|
| 5803 |
|
---|
| 5804 |
|
---|
| 5805 | /* ASN Encoded Name field */
|
---|
| 5806 | typedef struct EncodedName {
|
---|
| 5807 | int nameLen; /* actual string value length */
|
---|
| 5808 | int totalLen; /* total encoded length */
|
---|
| 5809 | int type; /* type of name */
|
---|
| 5810 | int used; /* are we actually using this one */
|
---|
| 5811 | byte encoded[CTC_NAME_SIZE * 2]; /* encoding */
|
---|
| 5812 | } EncodedName;
|
---|
| 5813 |
|
---|
| 5814 |
|
---|
| 5815 | /* Get Which Name from index */
|
---|
| 5816 | static const char* GetOneName(CertName* name, int idx)
|
---|
| 5817 | {
|
---|
| 5818 | switch (idx) {
|
---|
| 5819 | case 0:
|
---|
| 5820 | return name->country;
|
---|
| 5821 |
|
---|
| 5822 | case 1:
|
---|
| 5823 | return name->state;
|
---|
| 5824 |
|
---|
| 5825 | case 2:
|
---|
| 5826 | return name->locality;
|
---|
| 5827 |
|
---|
| 5828 | case 3:
|
---|
| 5829 | return name->sur;
|
---|
| 5830 |
|
---|
| 5831 | case 4:
|
---|
| 5832 | return name->org;
|
---|
| 5833 |
|
---|
| 5834 | case 5:
|
---|
| 5835 | return name->unit;
|
---|
| 5836 |
|
---|
| 5837 | case 6:
|
---|
| 5838 | return name->commonName;
|
---|
| 5839 |
|
---|
| 5840 | case 7:
|
---|
| 5841 | return name->email;
|
---|
| 5842 |
|
---|
| 5843 | default:
|
---|
| 5844 | return 0;
|
---|
| 5845 | }
|
---|
| 5846 | }
|
---|
| 5847 |
|
---|
| 5848 |
|
---|
| 5849 | /* Get Which Name Encoding from index */
|
---|
| 5850 | static char GetNameType(CertName* name, int idx)
|
---|
| 5851 | {
|
---|
| 5852 | switch (idx) {
|
---|
| 5853 | case 0:
|
---|
| 5854 | return name->countryEnc;
|
---|
| 5855 |
|
---|
| 5856 | case 1:
|
---|
| 5857 | return name->stateEnc;
|
---|
| 5858 |
|
---|
| 5859 | case 2:
|
---|
| 5860 | return name->localityEnc;
|
---|
| 5861 |
|
---|
| 5862 | case 3:
|
---|
| 5863 | return name->surEnc;
|
---|
| 5864 |
|
---|
| 5865 | case 4:
|
---|
| 5866 | return name->orgEnc;
|
---|
| 5867 |
|
---|
| 5868 | case 5:
|
---|
| 5869 | return name->unitEnc;
|
---|
| 5870 |
|
---|
| 5871 | case 6:
|
---|
| 5872 | return name->commonNameEnc;
|
---|
| 5873 |
|
---|
| 5874 | default:
|
---|
| 5875 | return 0;
|
---|
| 5876 | }
|
---|
| 5877 | }
|
---|
| 5878 |
|
---|
| 5879 |
|
---|
| 5880 | /* Get ASN Name from index */
|
---|
| 5881 | static byte GetNameId(int idx)
|
---|
| 5882 | {
|
---|
| 5883 | switch (idx) {
|
---|
| 5884 | case 0:
|
---|
| 5885 | return ASN_COUNTRY_NAME;
|
---|
| 5886 |
|
---|
| 5887 | case 1:
|
---|
| 5888 | return ASN_STATE_NAME;
|
---|
| 5889 |
|
---|
| 5890 | case 2:
|
---|
| 5891 | return ASN_LOCALITY_NAME;
|
---|
| 5892 |
|
---|
| 5893 | case 3:
|
---|
| 5894 | return ASN_SUR_NAME;
|
---|
| 5895 |
|
---|
| 5896 | case 4:
|
---|
| 5897 | return ASN_ORG_NAME;
|
---|
| 5898 |
|
---|
| 5899 | case 5:
|
---|
| 5900 | return ASN_ORGUNIT_NAME;
|
---|
| 5901 |
|
---|
| 5902 | case 6:
|
---|
| 5903 | return ASN_COMMON_NAME;
|
---|
| 5904 |
|
---|
| 5905 | case 7:
|
---|
| 5906 | /* email uses different id type */
|
---|
| 5907 | return 0;
|
---|
| 5908 |
|
---|
| 5909 | default:
|
---|
| 5910 | return 0;
|
---|
| 5911 | }
|
---|
| 5912 | }
|
---|
| 5913 |
|
---|
| 5914 | /*
|
---|
| 5915 | Extensions ::= SEQUENCE OF Extension
|
---|
| 5916 |
|
---|
| 5917 | Extension ::= SEQUENCE {
|
---|
| 5918 | extnId OBJECT IDENTIFIER,
|
---|
| 5919 | critical BOOLEAN DEFAULT FALSE,
|
---|
| 5920 | extnValue OCTET STRING }
|
---|
| 5921 | */
|
---|
| 5922 |
|
---|
| 5923 | /* encode all extensions, return total bytes written */
|
---|
| 5924 | static int SetExtensions(byte* out, word32 outSz, int *IdxInOut,
|
---|
| 5925 | const byte* ext, int extSz)
|
---|
| 5926 | {
|
---|
| 5927 | if (out == NULL || IdxInOut == NULL || ext == NULL)
|
---|
| 5928 | return BAD_FUNC_ARG;
|
---|
| 5929 |
|
---|
| 5930 | if (outSz < (word32)(*IdxInOut+extSz))
|
---|
| 5931 | return BUFFER_E;
|
---|
| 5932 |
|
---|
| 5933 | XMEMCPY(&out[*IdxInOut], ext, extSz); /* extensions */
|
---|
| 5934 | *IdxInOut += extSz;
|
---|
| 5935 |
|
---|
| 5936 | return *IdxInOut;
|
---|
| 5937 | }
|
---|
| 5938 |
|
---|
| 5939 | /* encode extensions header, return total bytes written */
|
---|
| 5940 | static int SetExtensionsHeader(byte* out, word32 outSz, int extSz)
|
---|
| 5941 | {
|
---|
| 5942 | byte sequence[MAX_SEQ_SZ];
|
---|
| 5943 | byte len[MAX_LENGTH_SZ];
|
---|
| 5944 | int seqSz, lenSz, idx = 0;
|
---|
| 5945 |
|
---|
| 5946 | if (out == NULL)
|
---|
| 5947 | return BAD_FUNC_ARG;
|
---|
| 5948 |
|
---|
| 5949 | if (outSz < 3)
|
---|
| 5950 | return BUFFER_E;
|
---|
| 5951 |
|
---|
| 5952 | seqSz = SetSequence(extSz, sequence);
|
---|
| 5953 |
|
---|
| 5954 | /* encode extensions length provided */
|
---|
| 5955 | lenSz = SetLength(extSz+seqSz, len);
|
---|
| 5956 |
|
---|
| 5957 | if (outSz < (word32)(lenSz+seqSz+1))
|
---|
| 5958 | return BUFFER_E;
|
---|
| 5959 |
|
---|
| 5960 | out[idx++] = ASN_EXTENSIONS; /* extensions id */
|
---|
| 5961 | XMEMCPY(&out[idx], len, lenSz); /* length */
|
---|
| 5962 | idx += lenSz;
|
---|
| 5963 |
|
---|
| 5964 | XMEMCPY(&out[idx], sequence, seqSz); /* sequence */
|
---|
| 5965 | idx += seqSz;
|
---|
| 5966 |
|
---|
| 5967 | return idx;
|
---|
| 5968 | }
|
---|
| 5969 |
|
---|
| 5970 |
|
---|
| 5971 | /* encode CA basic constraint true, return total bytes written */
|
---|
| 5972 | static int SetCa(byte* out, word32 outSz)
|
---|
| 5973 | {
|
---|
| 5974 | static const byte ca[] = { 0x30, 0x0c, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x04,
|
---|
| 5975 | 0x05, 0x30, 0x03, 0x01, 0x01, 0xff };
|
---|
| 5976 |
|
---|
| 5977 | if (out == NULL)
|
---|
| 5978 | return BAD_FUNC_ARG;
|
---|
| 5979 |
|
---|
| 5980 | if (outSz < sizeof(ca))
|
---|
| 5981 | return BUFFER_E;
|
---|
| 5982 |
|
---|
| 5983 | XMEMCPY(out, ca, sizeof(ca));
|
---|
| 5984 |
|
---|
| 5985 | return (int)sizeof(ca);
|
---|
| 5986 | }
|
---|
| 5987 |
|
---|
| 5988 |
|
---|
| 5989 | #ifdef WOLFSSL_CERT_EXT
|
---|
| 5990 | /* encode OID and associated value, return total bytes written */
|
---|
| 5991 | static int SetOidValue(byte* out, word32 outSz, const byte *oid, word32 oidSz,
|
---|
| 5992 | byte *in, word32 inSz)
|
---|
| 5993 | {
|
---|
| 5994 | int idx = 0;
|
---|
| 5995 |
|
---|
| 5996 | if (out == NULL || oid == NULL || in == NULL)
|
---|
| 5997 | return BAD_FUNC_ARG;
|
---|
| 5998 |
|
---|
| 5999 | if (outSz < 3)
|
---|
| 6000 | return BUFFER_E;
|
---|
| 6001 |
|
---|
| 6002 | /* sequence, + 1 => byte to put value size */
|
---|
| 6003 | idx = SetSequence(inSz + oidSz + 1, out);
|
---|
| 6004 |
|
---|
| 6005 | if (outSz < idx + inSz + oidSz + 1)
|
---|
| 6006 | return BUFFER_E;
|
---|
| 6007 |
|
---|
| 6008 | XMEMCPY(out+idx, oid, oidSz);
|
---|
| 6009 | idx += oidSz;
|
---|
| 6010 | out[idx++] = (byte)inSz;
|
---|
| 6011 | XMEMCPY(out+idx, in, inSz);
|
---|
| 6012 |
|
---|
| 6013 | return (idx+inSz);
|
---|
| 6014 | }
|
---|
| 6015 |
|
---|
| 6016 | /* encode Subject Key Identifier, return total bytes written
|
---|
| 6017 | * RFC5280 : non-critical */
|
---|
| 6018 | static int SetSKID(byte* output, word32 outSz, byte *input, word32 length)
|
---|
| 6019 | {
|
---|
| 6020 | byte skid_len[MAX_LENGTH_SZ];
|
---|
| 6021 | byte skid_enc_len[MAX_LENGTH_SZ];
|
---|
| 6022 | int idx = 0, skid_lenSz, skid_enc_lenSz;
|
---|
| 6023 | static const byte skid_oid[] = { 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04 };
|
---|
| 6024 |
|
---|
| 6025 | if (output == NULL || input == NULL)
|
---|
| 6026 | return BAD_FUNC_ARG;
|
---|
| 6027 |
|
---|
| 6028 | /* length of value */
|
---|
| 6029 | skid_lenSz = SetLength(length, skid_len);
|
---|
| 6030 |
|
---|
| 6031 | /* length of encoded value */
|
---|
| 6032 | skid_enc_lenSz = SetLength(length + skid_lenSz + 1, skid_enc_len);
|
---|
| 6033 |
|
---|
| 6034 | if (outSz < 3)
|
---|
| 6035 | return BUFFER_E;
|
---|
| 6036 |
|
---|
| 6037 | /* sequence, + 1 => byte to put type size */
|
---|
| 6038 | idx = SetSequence(length + sizeof(skid_oid) + skid_lenSz + skid_enc_lenSz+1,
|
---|
| 6039 | output);
|
---|
| 6040 |
|
---|
| 6041 | if (outSz < length + sizeof(skid_oid) + skid_lenSz + skid_enc_lenSz + 1)
|
---|
| 6042 | return BUFFER_E;
|
---|
| 6043 |
|
---|
| 6044 | /* put oid */
|
---|
| 6045 | XMEMCPY(output+idx, skid_oid, sizeof(skid_oid));
|
---|
| 6046 | idx += sizeof(skid_oid);
|
---|
| 6047 |
|
---|
| 6048 | /* put encoded len */
|
---|
| 6049 | XMEMCPY(output+idx, skid_enc_len, skid_enc_lenSz);
|
---|
| 6050 | idx += skid_enc_lenSz;
|
---|
| 6051 |
|
---|
| 6052 | /* put type */
|
---|
| 6053 | output[idx++] = ASN_OCTET_STRING;
|
---|
| 6054 |
|
---|
| 6055 | /* put value len */
|
---|
| 6056 | XMEMCPY(output+idx, skid_len, skid_lenSz);
|
---|
| 6057 | idx += skid_lenSz;
|
---|
| 6058 |
|
---|
| 6059 | /* put value */
|
---|
| 6060 | XMEMCPY(output+idx, input, length);
|
---|
| 6061 | idx += length;
|
---|
| 6062 |
|
---|
| 6063 | return idx;
|
---|
| 6064 | }
|
---|
| 6065 |
|
---|
| 6066 | /* encode Authority Key Identifier, return total bytes written
|
---|
| 6067 | * RFC5280 : non-critical */
|
---|
| 6068 | static int SetAKID(byte* output, word32 outSz, byte *input, word32 length)
|
---|
| 6069 | {
|
---|
| 6070 | byte *enc_val;
|
---|
| 6071 | int ret, enc_valSz;
|
---|
| 6072 | static const byte akid_oid[] = { 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04};
|
---|
| 6073 | static const byte akid_cs[] = { 0x80 };
|
---|
| 6074 |
|
---|
| 6075 | if (output == NULL || input == NULL)
|
---|
| 6076 | return BAD_FUNC_ARG;
|
---|
| 6077 |
|
---|
| 6078 | enc_val = (byte *)XMALLOC(length+3+sizeof(akid_cs), NULL,
|
---|
| 6079 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6080 | if (enc_val == NULL)
|
---|
| 6081 | return MEMORY_E;
|
---|
| 6082 |
|
---|
| 6083 | /* sequence for ContentSpec & value */
|
---|
| 6084 | enc_valSz = SetOidValue(enc_val, length+3+sizeof(akid_cs),
|
---|
| 6085 | akid_cs, sizeof(akid_cs), input, length);
|
---|
| 6086 | if (enc_valSz == 0) {
|
---|
| 6087 | XFREE(enc_val, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6088 | return 0;
|
---|
| 6089 | }
|
---|
| 6090 |
|
---|
| 6091 | ret = SetOidValue(output, outSz, akid_oid,
|
---|
| 6092 | sizeof(akid_oid), enc_val, enc_valSz);
|
---|
| 6093 |
|
---|
| 6094 | XFREE(enc_val, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6095 | return ret;
|
---|
| 6096 | }
|
---|
| 6097 |
|
---|
| 6098 | /* encode Key Usage, return total bytes written
|
---|
| 6099 | * RFC5280 : critical */
|
---|
| 6100 | static int SetKeyUsage(byte* output, word32 outSz, word16 input)
|
---|
| 6101 | {
|
---|
| 6102 | byte ku[5];
|
---|
| 6103 | int unusedBits = 0;
|
---|
| 6104 | static const byte keyusage_oid[] = { 0x06, 0x03, 0x55, 0x1d, 0x0f,
|
---|
| 6105 | 0x01, 0x01, 0xff, 0x04};
|
---|
| 6106 |
|
---|
| 6107 | if (output == NULL)
|
---|
| 6108 | return BAD_FUNC_ARG;
|
---|
| 6109 |
|
---|
| 6110 | /* Key Usage is a BitString */
|
---|
| 6111 | ku[0] = ASN_BIT_STRING;
|
---|
| 6112 |
|
---|
| 6113 | /* put the Bit String size */
|
---|
| 6114 | if (input > 255) {
|
---|
| 6115 | ku[1] = (byte)3;
|
---|
| 6116 |
|
---|
| 6117 | /* compute unused bits */
|
---|
| 6118 | while (((((input >> 8) & 0xff) >> unusedBits) & 0x01) == 0)
|
---|
| 6119 | unusedBits++;
|
---|
| 6120 | }
|
---|
| 6121 | else {
|
---|
| 6122 | ku[1] = (byte)2;
|
---|
| 6123 |
|
---|
| 6124 | /* compute unused bits */
|
---|
| 6125 | while (((input >> unusedBits) & 0x01) == 0)
|
---|
| 6126 | unusedBits++;
|
---|
| 6127 | }
|
---|
| 6128 |
|
---|
| 6129 | /* put unused bits value */
|
---|
| 6130 | ku[2] = (byte)unusedBits;
|
---|
| 6131 |
|
---|
| 6132 | /* compute byte value */
|
---|
| 6133 | ku[3] = (byte)(input & 0xff);
|
---|
| 6134 | if (input > 255)
|
---|
| 6135 | ku[4] = (byte)((input >> 8) & 0xff);
|
---|
| 6136 |
|
---|
| 6137 | return SetOidValue(output, outSz, keyusage_oid, sizeof(keyusage_oid),
|
---|
| 6138 | ku, (int)ku[1]+2);
|
---|
| 6139 | }
|
---|
| 6140 |
|
---|
| 6141 | /* Encode OID string representation to ITU-T X.690 format */
|
---|
| 6142 | static int EncodePolicyOID(byte *out, word32 *outSz, const char *in)
|
---|
| 6143 | {
|
---|
| 6144 | word32 val, idx = 0, nb_val;
|
---|
| 6145 | char *token, *str, *ptr;
|
---|
| 6146 | word32 len;
|
---|
| 6147 |
|
---|
| 6148 | if (out == NULL || outSz == NULL || *outSz < 2 || in == NULL)
|
---|
| 6149 | return BAD_FUNC_ARG;
|
---|
| 6150 |
|
---|
| 6151 | len = (word32)XSTRLEN(in);
|
---|
| 6152 |
|
---|
| 6153 | str = (char *)XMALLOC(len+1, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6154 | if (str == NULL)
|
---|
| 6155 | return MEMORY_E;
|
---|
| 6156 |
|
---|
| 6157 | XSTRNCPY(str, in, len);
|
---|
| 6158 | str[len] = 0x00;
|
---|
| 6159 |
|
---|
| 6160 | nb_val = 0;
|
---|
| 6161 |
|
---|
| 6162 | /* parse value, and set corresponding Policy OID value */
|
---|
| 6163 | token = XSTRTOK(str, ".", &ptr);
|
---|
| 6164 | while (token != NULL)
|
---|
| 6165 | {
|
---|
| 6166 | val = (word32)atoi(token);
|
---|
| 6167 |
|
---|
| 6168 | if (nb_val == 0) {
|
---|
| 6169 | if (val > 2) {
|
---|
| 6170 | XFREE(str, NUL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6171 | return ASN_OBJECT_ID_E;
|
---|
| 6172 | }
|
---|
| 6173 |
|
---|
| 6174 | out[idx] = (byte)(40 * val);
|
---|
| 6175 | }
|
---|
| 6176 | else if (nb_val == 1) {
|
---|
| 6177 | if (val > 127) {
|
---|
| 6178 | XFREE(str, NUL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6179 | return ASN_OBJECT_ID_E;
|
---|
| 6180 | }
|
---|
| 6181 |
|
---|
| 6182 | if (idx > *outSz) {
|
---|
| 6183 | XFREE(str, NUL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6184 | return BUFFER_E;
|
---|
| 6185 | }
|
---|
| 6186 |
|
---|
| 6187 | out[idx++] += (byte)val;
|
---|
| 6188 | }
|
---|
| 6189 | else {
|
---|
| 6190 | word32 tb = 0, x;
|
---|
| 6191 | int i = 0;
|
---|
| 6192 | byte oid[MAX_OID_SZ];
|
---|
| 6193 |
|
---|
| 6194 | while (val >= 128) {
|
---|
| 6195 | x = val % 128;
|
---|
| 6196 | val /= 128;
|
---|
| 6197 | oid[i++] = (byte) (((tb++) ? 0x80 : 0) | x);
|
---|
| 6198 | }
|
---|
| 6199 |
|
---|
| 6200 | if ((idx+(word32)i) > *outSz) {
|
---|
| 6201 | XFREE(str, NUL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6202 | return BUFFER_E;
|
---|
| 6203 | }
|
---|
| 6204 |
|
---|
| 6205 | oid[i] = (byte) (((tb++) ? 0x80 : 0) | val);
|
---|
| 6206 |
|
---|
| 6207 | /* push value in the right order */
|
---|
| 6208 | while (i >= 0)
|
---|
| 6209 | out[idx++] = oid[i--];
|
---|
| 6210 | }
|
---|
| 6211 |
|
---|
| 6212 | token = XSTRTOK(NULL, ".", &ptr);
|
---|
| 6213 | nb_val++;
|
---|
| 6214 | }
|
---|
| 6215 |
|
---|
| 6216 | *outSz = idx;
|
---|
| 6217 |
|
---|
| 6218 | XFREE(str, NUL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6219 | return 0;
|
---|
| 6220 | }
|
---|
| 6221 |
|
---|
| 6222 | /* encode Certificate Policies, return total bytes written
|
---|
| 6223 | * each input value must be ITU-T X.690 formatted : a.b.c...
|
---|
| 6224 | * input must be an array of values with a NULL terminated for the latest
|
---|
| 6225 | * RFC5280 : non-critical */
|
---|
| 6226 | static int SetCertificatePolicies(byte *output,
|
---|
| 6227 | word32 outputSz,
|
---|
| 6228 | char input[MAX_CERTPOL_NB][MAX_CERTPOL_SZ],
|
---|
| 6229 | word16 nb_certpol)
|
---|
| 6230 | {
|
---|
| 6231 | byte oid[MAX_OID_SZ],
|
---|
| 6232 | der_oid[MAX_CERTPOL_NB][MAX_OID_SZ],
|
---|
| 6233 | out[MAX_CERTPOL_SZ];
|
---|
| 6234 | word32 oidSz;
|
---|
| 6235 | word32 outSz, i = 0, der_oidSz[MAX_CERTPOL_NB];
|
---|
| 6236 | int ret;
|
---|
| 6237 |
|
---|
| 6238 | static const byte certpol_oid[] = { 0x06, 0x03, 0x55, 0x1d, 0x20, 0x04 };
|
---|
| 6239 | static const byte oid_oid[] = { 0x06 };
|
---|
| 6240 |
|
---|
| 6241 | if (output == NULL || input == NULL || nb_certpol > MAX_CERTPOL_NB)
|
---|
| 6242 | return BAD_FUNC_ARG;
|
---|
| 6243 |
|
---|
| 6244 | for (i = 0; i < nb_certpol; i++) {
|
---|
| 6245 | oidSz = sizeof(oid);
|
---|
| 6246 | XMEMSET(oid, 0, oidSz);
|
---|
| 6247 |
|
---|
| 6248 | ret = EncodePolicyOID(oid, &oidSz, input[i]);
|
---|
| 6249 | if (ret != 0)
|
---|
| 6250 | return ret;
|
---|
| 6251 |
|
---|
| 6252 | /* compute sequence value for the oid */
|
---|
| 6253 | ret = SetOidValue(der_oid[i], MAX_OID_SZ, oid_oid,
|
---|
| 6254 | sizeof(oid_oid), oid, oidSz);
|
---|
| 6255 | if (ret <= 0)
|
---|
| 6256 | return ret;
|
---|
| 6257 | else
|
---|
| 6258 | der_oidSz[i] = (word32)ret;
|
---|
| 6259 | }
|
---|
| 6260 |
|
---|
| 6261 | /* concatene oid, keep two byte for sequence/size of the created value */
|
---|
| 6262 | for (i = 0, outSz = 2; i < nb_certpol; i++) {
|
---|
| 6263 | XMEMCPY(out+outSz, der_oid[i], der_oidSz[i]);
|
---|
| 6264 | outSz += der_oidSz[i];
|
---|
| 6265 | }
|
---|
| 6266 |
|
---|
| 6267 | /* add sequence */
|
---|
| 6268 | ret = SetSequence(outSz-2, out);
|
---|
| 6269 | if (ret <= 0)
|
---|
| 6270 | return ret;
|
---|
| 6271 |
|
---|
| 6272 | /* add Policy OID to compute final value */
|
---|
| 6273 | return SetOidValue(output, outputSz, certpol_oid, sizeof(certpol_oid),
|
---|
| 6274 | out, outSz);
|
---|
| 6275 | }
|
---|
| 6276 | #endif /* WOLFSSL_CERT_EXT */
|
---|
| 6277 |
|
---|
| 6278 | #ifdef WOLFSSL_ALT_NAMES
|
---|
| 6279 | /* encode Alternative Names, return total bytes written */
|
---|
| 6280 | static int SetAltNames(byte *out, word32 outSz, byte *input, word32 length)
|
---|
| 6281 | {
|
---|
| 6282 | if (out == NULL || input == NULL)
|
---|
| 6283 | return BAD_FUNC_ARG;
|
---|
| 6284 |
|
---|
| 6285 | if (outSz < length)
|
---|
| 6286 | return BUFFER_E;
|
---|
| 6287 |
|
---|
| 6288 | /* Alternative Names come from certificate or computed by
|
---|
| 6289 | * external function, so already encoded. Just copy value */
|
---|
| 6290 | XMEMCPY(out, input, length);
|
---|
| 6291 | return length;
|
---|
| 6292 | }
|
---|
| 6293 | #endif /* WOLFSL_ALT_NAMES */
|
---|
| 6294 |
|
---|
| 6295 |
|
---|
| 6296 | /* encode CertName into output, return total bytes written */
|
---|
| 6297 | static int SetName(byte* output, word32 outputSz, CertName* name)
|
---|
| 6298 | {
|
---|
| 6299 | int totalBytes = 0, i, idx;
|
---|
| 6300 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6301 | EncodedName* names = NULL;
|
---|
| 6302 | #else
|
---|
| 6303 | EncodedName names[NAME_ENTRIES];
|
---|
| 6304 | #endif
|
---|
| 6305 |
|
---|
| 6306 | if (output == NULL || name == NULL)
|
---|
| 6307 | return BAD_FUNC_ARG;
|
---|
| 6308 |
|
---|
| 6309 | if (outputSz < 3)
|
---|
| 6310 | return BUFFER_E;
|
---|
| 6311 |
|
---|
| 6312 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6313 | names = (EncodedName*)XMALLOC(sizeof(EncodedName) * NAME_ENTRIES, NULL,
|
---|
| 6314 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6315 | if (names == NULL)
|
---|
| 6316 | return MEMORY_E;
|
---|
| 6317 | #endif
|
---|
| 6318 |
|
---|
| 6319 | for (i = 0; i < NAME_ENTRIES; i++) {
|
---|
| 6320 | const char* nameStr = GetOneName(name, i);
|
---|
| 6321 | if (nameStr) {
|
---|
| 6322 | /* bottom up */
|
---|
| 6323 | byte firstLen[MAX_LENGTH_SZ];
|
---|
| 6324 | byte secondLen[MAX_LENGTH_SZ];
|
---|
| 6325 | byte sequence[MAX_SEQ_SZ];
|
---|
| 6326 | byte set[MAX_SET_SZ];
|
---|
| 6327 |
|
---|
| 6328 | int email = i == (NAME_ENTRIES - 1) ? 1 : 0;
|
---|
| 6329 | int strLen = (int)XSTRLEN(nameStr);
|
---|
| 6330 | int thisLen = strLen;
|
---|
| 6331 | int firstSz, secondSz, seqSz, setSz;
|
---|
| 6332 |
|
---|
| 6333 | if (strLen == 0) { /* no user data for this item */
|
---|
| 6334 | names[i].used = 0;
|
---|
| 6335 | continue;
|
---|
| 6336 | }
|
---|
| 6337 |
|
---|
| 6338 | secondSz = SetLength(strLen, secondLen);
|
---|
| 6339 | thisLen += secondSz;
|
---|
| 6340 | if (email) {
|
---|
| 6341 | thisLen += EMAIL_JOINT_LEN;
|
---|
| 6342 | thisLen ++; /* id type */
|
---|
| 6343 | firstSz = SetLength(EMAIL_JOINT_LEN, firstLen);
|
---|
| 6344 | }
|
---|
| 6345 | else {
|
---|
| 6346 | thisLen++; /* str type */
|
---|
| 6347 | thisLen++; /* id type */
|
---|
| 6348 | thisLen += JOINT_LEN;
|
---|
| 6349 | firstSz = SetLength(JOINT_LEN + 1, firstLen);
|
---|
| 6350 | }
|
---|
| 6351 | thisLen += firstSz;
|
---|
| 6352 | thisLen++; /* object id */
|
---|
| 6353 |
|
---|
| 6354 | seqSz = SetSequence(thisLen, sequence);
|
---|
| 6355 | thisLen += seqSz;
|
---|
| 6356 | setSz = SetSet(thisLen, set);
|
---|
| 6357 | thisLen += setSz;
|
---|
| 6358 |
|
---|
| 6359 | if (thisLen > (int)sizeof(names[i].encoded)) {
|
---|
| 6360 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6361 | XFREE(names, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6362 | #endif
|
---|
| 6363 | return BUFFER_E;
|
---|
| 6364 | }
|
---|
| 6365 |
|
---|
| 6366 | /* store it */
|
---|
| 6367 | idx = 0;
|
---|
| 6368 | /* set */
|
---|
| 6369 | XMEMCPY(names[i].encoded, set, setSz);
|
---|
| 6370 | idx += setSz;
|
---|
| 6371 | /* seq */
|
---|
| 6372 | XMEMCPY(names[i].encoded + idx, sequence, seqSz);
|
---|
| 6373 | idx += seqSz;
|
---|
| 6374 | /* asn object id */
|
---|
| 6375 | names[i].encoded[idx++] = ASN_OBJECT_ID;
|
---|
| 6376 | /* first length */
|
---|
| 6377 | XMEMCPY(names[i].encoded + idx, firstLen, firstSz);
|
---|
| 6378 | idx += firstSz;
|
---|
| 6379 | if (email) {
|
---|
| 6380 | const byte EMAIL_OID[] = { 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d,
|
---|
| 6381 | 0x01, 0x09, 0x01, 0x16 };
|
---|
| 6382 | /* email joint id */
|
---|
| 6383 | XMEMCPY(names[i].encoded + idx, EMAIL_OID, sizeof(EMAIL_OID));
|
---|
| 6384 | idx += (int)sizeof(EMAIL_OID);
|
---|
| 6385 | }
|
---|
| 6386 | else {
|
---|
| 6387 | /* joint id */
|
---|
| 6388 | byte bType = GetNameId(i);
|
---|
| 6389 | names[i].encoded[idx++] = 0x55;
|
---|
| 6390 | names[i].encoded[idx++] = 0x04;
|
---|
| 6391 | /* id type */
|
---|
| 6392 | names[i].encoded[idx++] = bType;
|
---|
| 6393 | /* str type */
|
---|
| 6394 | names[i].encoded[idx++] = GetNameType(name, i);
|
---|
| 6395 | }
|
---|
| 6396 | /* second length */
|
---|
| 6397 | XMEMCPY(names[i].encoded + idx, secondLen, secondSz);
|
---|
| 6398 | idx += secondSz;
|
---|
| 6399 | /* str value */
|
---|
| 6400 | XMEMCPY(names[i].encoded + idx, nameStr, strLen);
|
---|
| 6401 | idx += strLen;
|
---|
| 6402 |
|
---|
| 6403 | totalBytes += idx;
|
---|
| 6404 | names[i].totalLen = idx;
|
---|
| 6405 | names[i].used = 1;
|
---|
| 6406 | }
|
---|
| 6407 | else
|
---|
| 6408 | names[i].used = 0;
|
---|
| 6409 | }
|
---|
| 6410 |
|
---|
| 6411 | /* header */
|
---|
| 6412 | idx = SetSequence(totalBytes, output);
|
---|
| 6413 | totalBytes += idx;
|
---|
| 6414 | if (totalBytes > ASN_NAME_MAX) {
|
---|
| 6415 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6416 | XFREE(names, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6417 | #endif
|
---|
| 6418 | return BUFFER_E;
|
---|
| 6419 | }
|
---|
| 6420 |
|
---|
| 6421 | for (i = 0; i < NAME_ENTRIES; i++) {
|
---|
| 6422 | if (names[i].used) {
|
---|
| 6423 | if (outputSz < (word32)(idx+names[i].totalLen)) {
|
---|
| 6424 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6425 | XFREE(names, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6426 | #endif
|
---|
| 6427 | return BUFFER_E;
|
---|
| 6428 | }
|
---|
| 6429 |
|
---|
| 6430 | XMEMCPY(output + idx, names[i].encoded, names[i].totalLen);
|
---|
| 6431 | idx += names[i].totalLen;
|
---|
| 6432 | }
|
---|
| 6433 | }
|
---|
| 6434 |
|
---|
| 6435 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6436 | XFREE(names, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6437 | #endif
|
---|
| 6438 |
|
---|
| 6439 | return totalBytes;
|
---|
| 6440 | }
|
---|
| 6441 |
|
---|
| 6442 | /* encode info from cert into DER encoded format */
|
---|
| 6443 | static int EncodeCert(Cert* cert, DerCert* der, RsaKey* rsaKey, ecc_key* eccKey,
|
---|
| 6444 | WC_RNG* rng, const byte* ntruKey, word16 ntruSz)
|
---|
| 6445 | {
|
---|
| 6446 | int ret;
|
---|
| 6447 |
|
---|
| 6448 | (void)eccKey;
|
---|
| 6449 | (void)ntruKey;
|
---|
| 6450 | (void)ntruSz;
|
---|
| 6451 |
|
---|
| 6452 | if (cert == NULL || der == NULL || rng == NULL)
|
---|
| 6453 | return BAD_FUNC_ARG;
|
---|
| 6454 |
|
---|
| 6455 | /* init */
|
---|
| 6456 | XMEMSET(der, 0, sizeof(DerCert));
|
---|
| 6457 |
|
---|
| 6458 | /* version */
|
---|
| 6459 | der->versionSz = SetMyVersion(cert->version, der->version, TRUE);
|
---|
| 6460 |
|
---|
| 6461 | /* serial number */
|
---|
| 6462 | ret = wc_RNG_GenerateBlock(rng, cert->serial, CTC_SERIAL_SIZE);
|
---|
| 6463 | if (ret != 0)
|
---|
| 6464 | return ret;
|
---|
| 6465 |
|
---|
| 6466 | cert->serial[0] = 0x01; /* ensure positive */
|
---|
| 6467 | der->serialSz = SetSerial(cert->serial, der->serial);
|
---|
| 6468 |
|
---|
| 6469 | /* signature algo */
|
---|
| 6470 | der->sigAlgoSz = SetAlgoID(cert->sigType, der->sigAlgo, sigType, 0);
|
---|
| 6471 | if (der->sigAlgoSz == 0)
|
---|
| 6472 | return ALGO_ID_E;
|
---|
| 6473 |
|
---|
| 6474 | /* public key */
|
---|
| 6475 | if (cert->keyType == RSA_KEY) {
|
---|
| 6476 | if (rsaKey == NULL)
|
---|
| 6477 | return PUBLIC_KEY_E;
|
---|
| 6478 | der->publicKeySz = SetRsaPublicKey(der->publicKey, rsaKey,
|
---|
| 6479 | sizeof(der->publicKey), 1);
|
---|
| 6480 | if (der->publicKeySz <= 0)
|
---|
| 6481 | return PUBLIC_KEY_E;
|
---|
| 6482 | }
|
---|
| 6483 |
|
---|
| 6484 | #ifdef HAVE_ECC
|
---|
| 6485 | if (cert->keyType == ECC_KEY) {
|
---|
| 6486 | if (eccKey == NULL)
|
---|
| 6487 | return PUBLIC_KEY_E;
|
---|
| 6488 | der->publicKeySz = SetEccPublicKey(der->publicKey, eccKey, 1);
|
---|
| 6489 | if (der->publicKeySz <= 0)
|
---|
| 6490 | return PUBLIC_KEY_E;
|
---|
| 6491 | }
|
---|
| 6492 | #endif /* HAVE_ECC */
|
---|
| 6493 |
|
---|
| 6494 | #ifdef HAVE_NTRU
|
---|
| 6495 | if (cert->keyType == NTRU_KEY) {
|
---|
| 6496 | word32 rc;
|
---|
| 6497 | word16 encodedSz;
|
---|
| 6498 |
|
---|
| 6499 | rc = ntru_crypto_ntru_encrypt_publicKey2SubjectPublicKeyInfo( ntruSz,
|
---|
| 6500 | ntruKey, &encodedSz, NULL);
|
---|
| 6501 | if (rc != NTRU_OK)
|
---|
| 6502 | return PUBLIC_KEY_E;
|
---|
| 6503 | if (encodedSz > MAX_PUBLIC_KEY_SZ)
|
---|
| 6504 | return PUBLIC_KEY_E;
|
---|
| 6505 |
|
---|
| 6506 | rc = ntru_crypto_ntru_encrypt_publicKey2SubjectPublicKeyInfo( ntruSz,
|
---|
| 6507 | ntruKey, &encodedSz, der->publicKey);
|
---|
| 6508 | if (rc != NTRU_OK)
|
---|
| 6509 | return PUBLIC_KEY_E;
|
---|
| 6510 |
|
---|
| 6511 | der->publicKeySz = encodedSz;
|
---|
| 6512 | }
|
---|
| 6513 | #endif /* HAVE_NTRU */
|
---|
| 6514 |
|
---|
| 6515 | der->validitySz = 0;
|
---|
| 6516 | #ifdef WOLFSSL_ALT_NAMES
|
---|
| 6517 | /* date validity copy ? */
|
---|
| 6518 | if (cert->beforeDateSz && cert->afterDateSz) {
|
---|
| 6519 | der->validitySz = CopyValidity(der->validity, cert);
|
---|
| 6520 | if (der->validitySz == 0)
|
---|
| 6521 | return DATE_E;
|
---|
| 6522 | }
|
---|
| 6523 | #endif
|
---|
| 6524 |
|
---|
| 6525 | /* date validity */
|
---|
| 6526 | if (der->validitySz == 0) {
|
---|
| 6527 | der->validitySz = SetValidity(der->validity, cert->daysValid);
|
---|
| 6528 | if (der->validitySz == 0)
|
---|
| 6529 | return DATE_E;
|
---|
| 6530 | }
|
---|
| 6531 |
|
---|
| 6532 | /* subject name */
|
---|
| 6533 | der->subjectSz = SetName(der->subject, sizeof(der->subject), &cert->subject);
|
---|
| 6534 | if (der->subjectSz == 0)
|
---|
| 6535 | return SUBJECT_E;
|
---|
| 6536 |
|
---|
| 6537 | /* issuer name */
|
---|
| 6538 | der->issuerSz = SetName(der->issuer, sizeof(der->issuer), cert->selfSigned ?
|
---|
| 6539 | &cert->subject : &cert->issuer);
|
---|
| 6540 | if (der->issuerSz == 0)
|
---|
| 6541 | return ISSUER_E;
|
---|
| 6542 |
|
---|
| 6543 | /* set the extensions */
|
---|
| 6544 | der->extensionsSz = 0;
|
---|
| 6545 |
|
---|
| 6546 | /* CA */
|
---|
| 6547 | if (cert->isCA) {
|
---|
| 6548 | der->caSz = SetCa(der->ca, sizeof(der->ca));
|
---|
| 6549 | if (der->caSz == 0)
|
---|
| 6550 | return CA_TRUE_E;
|
---|
| 6551 |
|
---|
| 6552 | der->extensionsSz += der->caSz;
|
---|
| 6553 | }
|
---|
| 6554 | else
|
---|
| 6555 | der->caSz = 0;
|
---|
| 6556 |
|
---|
| 6557 | #ifdef WOLFSSL_ALT_NAMES
|
---|
| 6558 | /* Alternative Name */
|
---|
| 6559 | if (cert->altNamesSz) {
|
---|
| 6560 | der->altNamesSz = SetAltNames(der->altNames, sizeof(der->altNames),
|
---|
| 6561 | cert->altNames, cert->altNamesSz);
|
---|
| 6562 | if (der->altNamesSz == 0)
|
---|
| 6563 | return ALT_NAME_E;
|
---|
| 6564 |
|
---|
| 6565 | der->extensionsSz += der->altNamesSz;
|
---|
| 6566 | }
|
---|
| 6567 | else
|
---|
| 6568 | der->altNamesSz = 0;
|
---|
| 6569 | #endif
|
---|
| 6570 |
|
---|
| 6571 | #ifdef WOLFSSL_CERT_EXT
|
---|
| 6572 | /* SKID */
|
---|
| 6573 | if (cert->skidSz) {
|
---|
| 6574 | /* check the provided SKID size */
|
---|
| 6575 | if (cert->skidSz > (int)sizeof(der->skid))
|
---|
| 6576 | return SKID_E;
|
---|
| 6577 |
|
---|
| 6578 | der->skidSz = SetSKID(der->skid, sizeof(der->skid),
|
---|
| 6579 | cert->skid, cert->skidSz);
|
---|
| 6580 | if (der->skidSz == 0)
|
---|
| 6581 | return SKID_E;
|
---|
| 6582 |
|
---|
| 6583 | der->extensionsSz += der->skidSz;
|
---|
| 6584 | }
|
---|
| 6585 | else
|
---|
| 6586 | der->skidSz = 0;
|
---|
| 6587 |
|
---|
| 6588 | /* AKID */
|
---|
| 6589 | if (cert->akidSz) {
|
---|
| 6590 | /* check the provided AKID size */
|
---|
| 6591 | if (cert->akidSz > (int)sizeof(der->akid))
|
---|
| 6592 | return AKID_E;
|
---|
| 6593 |
|
---|
| 6594 | der->akidSz = SetAKID(der->akid, sizeof(der->akid),
|
---|
| 6595 | cert->akid, cert->akidSz);
|
---|
| 6596 | if (der->akidSz == 0)
|
---|
| 6597 | return AKID_E;
|
---|
| 6598 |
|
---|
| 6599 | der->extensionsSz += der->akidSz;
|
---|
| 6600 | }
|
---|
| 6601 | else
|
---|
| 6602 | der->akidSz = 0;
|
---|
| 6603 |
|
---|
| 6604 | /* Key Usage */
|
---|
| 6605 | if (cert->keyUsage != 0){
|
---|
| 6606 | der->keyUsageSz = SetKeyUsage(der->keyUsage, sizeof(der->keyUsage),
|
---|
| 6607 | cert->keyUsage);
|
---|
| 6608 | if (der->keyUsageSz == 0)
|
---|
| 6609 | return KEYUSAGE_E;
|
---|
| 6610 |
|
---|
| 6611 | der->extensionsSz += der->keyUsageSz;
|
---|
| 6612 | }
|
---|
| 6613 | else
|
---|
| 6614 | der->keyUsageSz = 0;
|
---|
| 6615 |
|
---|
| 6616 | /* Certificate Policies */
|
---|
| 6617 | if (cert->certPoliciesNb != 0) {
|
---|
| 6618 | der->certPoliciesSz = SetCertificatePolicies(der->certPolicies,
|
---|
| 6619 | sizeof(der->certPolicies),
|
---|
| 6620 | cert->certPolicies,
|
---|
| 6621 | cert->certPoliciesNb);
|
---|
| 6622 | if (der->certPoliciesSz == 0)
|
---|
| 6623 | return CERTPOLICIES_E;
|
---|
| 6624 |
|
---|
| 6625 | der->extensionsSz += der->certPoliciesSz;
|
---|
| 6626 | }
|
---|
| 6627 | else
|
---|
| 6628 | der->certPoliciesSz = 0;
|
---|
| 6629 | #endif /* WOLFSSL_CERT_EXT */
|
---|
| 6630 |
|
---|
| 6631 | /* put extensions */
|
---|
| 6632 | if (der->extensionsSz > 0) {
|
---|
| 6633 |
|
---|
| 6634 | /* put the start of extensions sequence (ID, Size) */
|
---|
| 6635 | der->extensionsSz = SetExtensionsHeader(der->extensions,
|
---|
| 6636 | sizeof(der->extensions),
|
---|
| 6637 | der->extensionsSz);
|
---|
| 6638 | if (der->extensionsSz == 0)
|
---|
| 6639 | return EXTENSIONS_E;
|
---|
| 6640 |
|
---|
| 6641 | /* put CA */
|
---|
| 6642 | if (der->caSz) {
|
---|
| 6643 | ret = SetExtensions(der->extensions, sizeof(der->extensions),
|
---|
| 6644 | &der->extensionsSz,
|
---|
| 6645 | der->ca, der->caSz);
|
---|
| 6646 | if (ret == 0)
|
---|
| 6647 | return EXTENSIONS_E;
|
---|
| 6648 | }
|
---|
| 6649 |
|
---|
| 6650 | #ifdef WOLFSSL_ALT_NAMES
|
---|
| 6651 | /* put Alternative Names */
|
---|
| 6652 | if (der->altNamesSz) {
|
---|
| 6653 | ret = SetExtensions(der->extensions, sizeof(der->extensions),
|
---|
| 6654 | &der->extensionsSz,
|
---|
| 6655 | der->altNames, der->altNamesSz);
|
---|
| 6656 | if (ret == 0)
|
---|
| 6657 | return EXTENSIONS_E;
|
---|
| 6658 | }
|
---|
| 6659 | #endif
|
---|
| 6660 |
|
---|
| 6661 | #ifdef WOLFSSL_CERT_EXT
|
---|
| 6662 | /* put SKID */
|
---|
| 6663 | if (der->skidSz) {
|
---|
| 6664 | ret = SetExtensions(der->extensions, sizeof(der->extensions),
|
---|
| 6665 | &der->extensionsSz,
|
---|
| 6666 | der->skid, der->skidSz);
|
---|
| 6667 | if (ret == 0)
|
---|
| 6668 | return EXTENSIONS_E;
|
---|
| 6669 | }
|
---|
| 6670 |
|
---|
| 6671 | /* put AKID */
|
---|
| 6672 | if (der->akidSz) {
|
---|
| 6673 | ret = SetExtensions(der->extensions, sizeof(der->extensions),
|
---|
| 6674 | &der->extensionsSz,
|
---|
| 6675 | der->akid, der->akidSz);
|
---|
| 6676 | if (ret == 0)
|
---|
| 6677 | return EXTENSIONS_E;
|
---|
| 6678 | }
|
---|
| 6679 |
|
---|
| 6680 | /* put KeyUsage */
|
---|
| 6681 | if (der->keyUsageSz) {
|
---|
| 6682 | ret = SetExtensions(der->extensions, sizeof(der->extensions),
|
---|
| 6683 | &der->extensionsSz,
|
---|
| 6684 | der->keyUsage, der->keyUsageSz);
|
---|
| 6685 | if (ret == 0)
|
---|
| 6686 | return EXTENSIONS_E;
|
---|
| 6687 | }
|
---|
| 6688 |
|
---|
| 6689 | /* put Certificate Policies */
|
---|
| 6690 | if (der->certPoliciesSz) {
|
---|
| 6691 | ret = SetExtensions(der->extensions, sizeof(der->extensions),
|
---|
| 6692 | &der->extensionsSz,
|
---|
| 6693 | der->certPolicies, der->certPoliciesSz);
|
---|
| 6694 | if (ret == 0)
|
---|
| 6695 | return EXTENSIONS_E;
|
---|
| 6696 | }
|
---|
| 6697 | #endif /* WOLFSSL_CERT_EXT */
|
---|
| 6698 | }
|
---|
| 6699 |
|
---|
| 6700 | der->total = der->versionSz + der->serialSz + der->sigAlgoSz +
|
---|
| 6701 | der->publicKeySz + der->validitySz + der->subjectSz + der->issuerSz +
|
---|
| 6702 | der->extensionsSz;
|
---|
| 6703 |
|
---|
| 6704 | return 0;
|
---|
| 6705 | }
|
---|
| 6706 |
|
---|
| 6707 |
|
---|
| 6708 | /* write DER encoded cert to buffer, size already checked */
|
---|
| 6709 | static int WriteCertBody(DerCert* der, byte* buffer)
|
---|
| 6710 | {
|
---|
| 6711 | int idx;
|
---|
| 6712 |
|
---|
| 6713 | /* signed part header */
|
---|
| 6714 | idx = SetSequence(der->total, buffer);
|
---|
| 6715 | /* version */
|
---|
| 6716 | XMEMCPY(buffer + idx, der->version, der->versionSz);
|
---|
| 6717 | idx += der->versionSz;
|
---|
| 6718 | /* serial */
|
---|
| 6719 | XMEMCPY(buffer + idx, der->serial, der->serialSz);
|
---|
| 6720 | idx += der->serialSz;
|
---|
| 6721 | /* sig algo */
|
---|
| 6722 | XMEMCPY(buffer + idx, der->sigAlgo, der->sigAlgoSz);
|
---|
| 6723 | idx += der->sigAlgoSz;
|
---|
| 6724 | /* issuer */
|
---|
| 6725 | XMEMCPY(buffer + idx, der->issuer, der->issuerSz);
|
---|
| 6726 | idx += der->issuerSz;
|
---|
| 6727 | /* validity */
|
---|
| 6728 | XMEMCPY(buffer + idx, der->validity, der->validitySz);
|
---|
| 6729 | idx += der->validitySz;
|
---|
| 6730 | /* subject */
|
---|
| 6731 | XMEMCPY(buffer + idx, der->subject, der->subjectSz);
|
---|
| 6732 | idx += der->subjectSz;
|
---|
| 6733 | /* public key */
|
---|
| 6734 | XMEMCPY(buffer + idx, der->publicKey, der->publicKeySz);
|
---|
| 6735 | idx += der->publicKeySz;
|
---|
| 6736 | if (der->extensionsSz) {
|
---|
| 6737 | /* extensions */
|
---|
| 6738 | XMEMCPY(buffer + idx, der->extensions, min(der->extensionsSz,
|
---|
| 6739 | sizeof(der->extensions)));
|
---|
| 6740 | idx += der->extensionsSz;
|
---|
| 6741 | }
|
---|
| 6742 |
|
---|
| 6743 | return idx;
|
---|
| 6744 | }
|
---|
| 6745 |
|
---|
| 6746 |
|
---|
| 6747 | /* Make RSA signature from buffer (sz), write to sig (sigSz) */
|
---|
| 6748 | static int MakeSignature(const byte* buffer, int sz, byte* sig, int sigSz,
|
---|
| 6749 | RsaKey* rsaKey, ecc_key* eccKey, WC_RNG* rng,
|
---|
| 6750 | int sigAlgoType)
|
---|
| 6751 | {
|
---|
| 6752 | int encSigSz, digestSz, typeH = 0, ret = 0;
|
---|
| 6753 | byte digest[MAX_DIGEST_SIZE]; /* max size */
|
---|
| 6754 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6755 | byte* encSig;
|
---|
| 6756 | #else
|
---|
| 6757 | byte encSig[MAX_ENCODED_DIG_SZ + MAX_ALGO_SZ + MAX_SEQ_SZ];
|
---|
| 6758 | #endif
|
---|
| 6759 |
|
---|
| 6760 | (void)digest;
|
---|
| 6761 | (void)digestSz;
|
---|
| 6762 | (void)encSig;
|
---|
| 6763 | (void)encSigSz;
|
---|
| 6764 | (void)typeH;
|
---|
| 6765 |
|
---|
| 6766 | (void)buffer;
|
---|
| 6767 | (void)sz;
|
---|
| 6768 | (void)sig;
|
---|
| 6769 | (void)sigSz;
|
---|
| 6770 | (void)rsaKey;
|
---|
| 6771 | (void)eccKey;
|
---|
| 6772 | (void)rng;
|
---|
| 6773 |
|
---|
| 6774 | switch (sigAlgoType) {
|
---|
| 6775 | #ifndef NO_MD5
|
---|
| 6776 | case CTC_MD5wRSA:
|
---|
| 6777 | if ((ret = wc_Md5Hash(buffer, sz, digest)) == 0) {
|
---|
| 6778 | typeH = MD5h;
|
---|
| 6779 | digestSz = MD5_DIGEST_SIZE;
|
---|
| 6780 | }
|
---|
| 6781 | break;
|
---|
| 6782 | #endif
|
---|
| 6783 | #ifndef NO_SHA
|
---|
| 6784 | case CTC_SHAwRSA:
|
---|
| 6785 | case CTC_SHAwECDSA:
|
---|
| 6786 | if ((ret = wc_ShaHash(buffer, sz, digest)) == 0) {
|
---|
| 6787 | typeH = SHAh;
|
---|
| 6788 | digestSz = SHA_DIGEST_SIZE;
|
---|
| 6789 | }
|
---|
| 6790 | break;
|
---|
| 6791 | #endif
|
---|
| 6792 | #ifndef NO_SHA256
|
---|
| 6793 | case CTC_SHA256wRSA:
|
---|
| 6794 | case CTC_SHA256wECDSA:
|
---|
| 6795 | if ((ret = wc_Sha256Hash(buffer, sz, digest)) == 0) {
|
---|
| 6796 | typeH = SHA256h;
|
---|
| 6797 | digestSz = SHA256_DIGEST_SIZE;
|
---|
| 6798 | }
|
---|
| 6799 | break;
|
---|
| 6800 | #endif
|
---|
| 6801 | #ifdef WOLFSSL_SHA512
|
---|
| 6802 | case CTC_SHA512wRSA:
|
---|
| 6803 | case CTC_SHA512wECDSA:
|
---|
| 6804 | if ((ret = wc_Sha512Hash(buffer, sz, digest)) == 0) {
|
---|
| 6805 | typeH = SHA256h;
|
---|
| 6806 | digestSz = SHA256_DIGEST_SIZE;
|
---|
| 6807 | }
|
---|
| 6808 | break;
|
---|
| 6809 | #endif
|
---|
| 6810 | default:
|
---|
| 6811 | WOLFSSL_MSG("MakeSignautre called with unsupported type");
|
---|
| 6812 | ret = ALGO_ID_E;
|
---|
| 6813 | }
|
---|
| 6814 |
|
---|
| 6815 | if (ret != 0)
|
---|
| 6816 | return ret;
|
---|
| 6817 |
|
---|
| 6818 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6819 | encSig = (byte*)XMALLOC(MAX_ENCODED_DIG_SZ + MAX_ALGO_SZ + MAX_SEQ_SZ,
|
---|
| 6820 | NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6821 | if (encSig == NULL)
|
---|
| 6822 | return MEMORY_E;
|
---|
| 6823 | #endif
|
---|
| 6824 |
|
---|
| 6825 | ret = ALGO_ID_E;
|
---|
| 6826 |
|
---|
| 6827 | #ifndef NO_RSA
|
---|
| 6828 | if (rsaKey) {
|
---|
| 6829 | /* signature */
|
---|
| 6830 | encSigSz = wc_EncodeSignature(encSig, digest, digestSz, typeH);
|
---|
| 6831 | ret = wc_RsaSSL_Sign(encSig, encSigSz, sig, sigSz, rsaKey, rng);
|
---|
| 6832 | }
|
---|
| 6833 | #endif
|
---|
| 6834 |
|
---|
| 6835 | #ifdef HAVE_ECC
|
---|
| 6836 | if (!rsaKey && eccKey) {
|
---|
| 6837 | word32 outSz = sigSz;
|
---|
| 6838 | ret = wc_ecc_sign_hash(digest, digestSz, sig, &outSz, rng, eccKey);
|
---|
| 6839 |
|
---|
| 6840 | if (ret == 0)
|
---|
| 6841 | ret = outSz;
|
---|
| 6842 | }
|
---|
| 6843 | #endif
|
---|
| 6844 |
|
---|
| 6845 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6846 | XFREE(encSig, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6847 | #endif
|
---|
| 6848 |
|
---|
| 6849 | return ret;
|
---|
| 6850 | }
|
---|
| 6851 |
|
---|
| 6852 |
|
---|
| 6853 | /* add signature to end of buffer, size of buffer assumed checked, return
|
---|
| 6854 | new length */
|
---|
| 6855 | static int AddSignature(byte* buffer, int bodySz, const byte* sig, int sigSz,
|
---|
| 6856 | int sigAlgoType)
|
---|
| 6857 | {
|
---|
| 6858 | byte seq[MAX_SEQ_SZ];
|
---|
| 6859 | int idx = bodySz, seqSz;
|
---|
| 6860 |
|
---|
| 6861 | /* algo */
|
---|
| 6862 | idx += SetAlgoID(sigAlgoType, buffer + idx, sigType, 0);
|
---|
| 6863 | /* bit string */
|
---|
| 6864 | buffer[idx++] = ASN_BIT_STRING;
|
---|
| 6865 | /* length */
|
---|
| 6866 | idx += SetLength(sigSz + 1, buffer + idx);
|
---|
| 6867 | buffer[idx++] = 0; /* trailing 0 */
|
---|
| 6868 | /* signature */
|
---|
| 6869 | XMEMCPY(buffer + idx, sig, sigSz);
|
---|
| 6870 | idx += sigSz;
|
---|
| 6871 |
|
---|
| 6872 | /* make room for overall header */
|
---|
| 6873 | seqSz = SetSequence(idx, seq);
|
---|
| 6874 | XMEMMOVE(buffer + seqSz, buffer, idx);
|
---|
| 6875 | XMEMCPY(buffer, seq, seqSz);
|
---|
| 6876 |
|
---|
| 6877 | return idx + seqSz;
|
---|
| 6878 | }
|
---|
| 6879 |
|
---|
| 6880 |
|
---|
| 6881 | /* Make an x509 Certificate v3 any key type from cert input, write to buffer */
|
---|
| 6882 | static int MakeAnyCert(Cert* cert, byte* derBuffer, word32 derSz,
|
---|
| 6883 | RsaKey* rsaKey, ecc_key* eccKey, WC_RNG* rng,
|
---|
| 6884 | const byte* ntruKey, word16 ntruSz)
|
---|
| 6885 | {
|
---|
| 6886 | int ret;
|
---|
| 6887 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6888 | DerCert* der;
|
---|
| 6889 | #else
|
---|
| 6890 | DerCert der[1];
|
---|
| 6891 | #endif
|
---|
| 6892 |
|
---|
| 6893 | cert->keyType = eccKey ? ECC_KEY : (rsaKey ? RSA_KEY : NTRU_KEY);
|
---|
| 6894 |
|
---|
| 6895 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6896 | der = (DerCert*)XMALLOC(sizeof(DerCert), NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6897 | if (der == NULL)
|
---|
| 6898 | return MEMORY_E;
|
---|
| 6899 | #endif
|
---|
| 6900 |
|
---|
| 6901 | ret = EncodeCert(cert, der, rsaKey, eccKey, rng, ntruKey, ntruSz);
|
---|
| 6902 | if (ret == 0) {
|
---|
| 6903 | if (der->total + MAX_SEQ_SZ * 2 > (int)derSz)
|
---|
| 6904 | ret = BUFFER_E;
|
---|
| 6905 | else
|
---|
| 6906 | ret = cert->bodySz = WriteCertBody(der, derBuffer);
|
---|
| 6907 | }
|
---|
| 6908 |
|
---|
| 6909 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 6910 | XFREE(der, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 6911 | #endif
|
---|
| 6912 |
|
---|
| 6913 | return ret;
|
---|
| 6914 | }
|
---|
| 6915 |
|
---|
| 6916 |
|
---|
| 6917 | /* Make an x509 Certificate v3 RSA or ECC from cert input, write to buffer */
|
---|
| 6918 | int wc_MakeCert(Cert* cert, byte* derBuffer, word32 derSz, RsaKey* rsaKey,
|
---|
| 6919 | ecc_key* eccKey, WC_RNG* rng)
|
---|
| 6920 | {
|
---|
| 6921 | return MakeAnyCert(cert, derBuffer, derSz, rsaKey, eccKey, rng, NULL, 0);
|
---|
| 6922 | }
|
---|
| 6923 |
|
---|
| 6924 |
|
---|
| 6925 | #ifdef HAVE_NTRU
|
---|
| 6926 |
|
---|
| 6927 | int wc_MakeNtruCert(Cert* cert, byte* derBuffer, word32 derSz,
|
---|
| 6928 | const byte* ntruKey, word16 keySz, WC_RNG* rng)
|
---|
| 6929 | {
|
---|
| 6930 | return MakeAnyCert(cert, derBuffer, derSz, NULL, NULL, rng, ntruKey, keySz);
|
---|
| 6931 | }
|
---|
| 6932 |
|
---|
| 6933 | #endif /* HAVE_NTRU */
|
---|
| 6934 |
|
---|
| 6935 |
|
---|
| 6936 | #ifdef WOLFSSL_CERT_REQ
|
---|
| 6937 |
|
---|
| 6938 | static int SetReqAttrib(byte* output, char* pw, int extSz)
|
---|
| 6939 | {
|
---|
| 6940 | static const byte cpOid[] =
|
---|
| 6941 | { ASN_OBJECT_ID, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
|
---|
| 6942 | 0x09, 0x07 };
|
---|
| 6943 | static const byte erOid[] =
|
---|
| 6944 | { ASN_OBJECT_ID, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
|
---|
| 6945 | 0x09, 0x0e };
|
---|
| 6946 |
|
---|
| 6947 | int sz = 0; /* overall size */
|
---|
| 6948 | int cpSz = 0; /* Challenge Password section size */
|
---|
| 6949 | int cpSeqSz = 0;
|
---|
| 6950 | int cpSetSz = 0;
|
---|
| 6951 | int cpStrSz = 0;
|
---|
| 6952 | int pwSz = 0;
|
---|
| 6953 | int erSz = 0; /* Extension Request section size */
|
---|
| 6954 | int erSeqSz = 0;
|
---|
| 6955 | int erSetSz = 0;
|
---|
| 6956 | byte cpSeq[MAX_SEQ_SZ];
|
---|
| 6957 | byte cpSet[MAX_SET_SZ];
|
---|
| 6958 | byte cpStr[MAX_PRSTR_SZ];
|
---|
| 6959 | byte erSeq[MAX_SEQ_SZ];
|
---|
| 6960 | byte erSet[MAX_SET_SZ];
|
---|
| 6961 |
|
---|
| 6962 | output[0] = 0xa0;
|
---|
| 6963 | sz++;
|
---|
| 6964 |
|
---|
| 6965 | if (pw && pw[0]) {
|
---|
| 6966 | pwSz = (int)XSTRLEN(pw);
|
---|
| 6967 | cpStrSz = SetUTF8String(pwSz, cpStr);
|
---|
| 6968 | cpSetSz = SetSet(cpStrSz + pwSz, cpSet);
|
---|
| 6969 | cpSeqSz = SetSequence(sizeof(cpOid) + cpSetSz + cpStrSz + pwSz, cpSeq);
|
---|
| 6970 | cpSz = cpSeqSz + sizeof(cpOid) + cpSetSz + cpStrSz + pwSz;
|
---|
| 6971 | }
|
---|
| 6972 |
|
---|
| 6973 | if (extSz) {
|
---|
| 6974 | erSetSz = SetSet(extSz, erSet);
|
---|
| 6975 | erSeqSz = SetSequence(erSetSz + sizeof(erOid) + extSz, erSeq);
|
---|
| 6976 | erSz = extSz + erSetSz + erSeqSz + sizeof(erOid);
|
---|
| 6977 | }
|
---|
| 6978 |
|
---|
| 6979 | /* Put the pieces together. */
|
---|
| 6980 | sz += SetLength(cpSz + erSz, &output[sz]);
|
---|
| 6981 |
|
---|
| 6982 | if (cpSz) {
|
---|
| 6983 | XMEMCPY(&output[sz], cpSeq, cpSeqSz);
|
---|
| 6984 | sz += cpSeqSz;
|
---|
| 6985 | XMEMCPY(&output[sz], cpOid, sizeof(cpOid));
|
---|
| 6986 | sz += sizeof(cpOid);
|
---|
| 6987 | XMEMCPY(&output[sz], cpSet, cpSetSz);
|
---|
| 6988 | sz += cpSetSz;
|
---|
| 6989 | XMEMCPY(&output[sz], cpStr, cpStrSz);
|
---|
| 6990 | sz += cpStrSz;
|
---|
| 6991 | XMEMCPY(&output[sz], pw, pwSz);
|
---|
| 6992 | sz += pwSz;
|
---|
| 6993 | }
|
---|
| 6994 |
|
---|
| 6995 | if (erSz) {
|
---|
| 6996 | XMEMCPY(&output[sz], erSeq, erSeqSz);
|
---|
| 6997 | sz += erSeqSz;
|
---|
| 6998 | XMEMCPY(&output[sz], erOid, sizeof(erOid));
|
---|
| 6999 | sz += sizeof(erOid);
|
---|
| 7000 | XMEMCPY(&output[sz], erSet, erSetSz);
|
---|
| 7001 | sz += erSetSz;
|
---|
| 7002 | /* The actual extension data will be tacked onto the output later. */
|
---|
| 7003 | }
|
---|
| 7004 |
|
---|
| 7005 | return sz;
|
---|
| 7006 | }
|
---|
| 7007 |
|
---|
| 7008 |
|
---|
| 7009 | /* encode info from cert into DER encoded format */
|
---|
| 7010 | static int EncodeCertReq(Cert* cert, DerCert* der,
|
---|
| 7011 | RsaKey* rsaKey, ecc_key* eccKey)
|
---|
| 7012 | {
|
---|
| 7013 | (void)eccKey;
|
---|
| 7014 |
|
---|
| 7015 | if (cert == NULL || der == NULL)
|
---|
| 7016 | return BAD_FUNC_ARG;
|
---|
| 7017 |
|
---|
| 7018 | /* init */
|
---|
| 7019 | XMEMSET(der, 0, sizeof(DerCert));
|
---|
| 7020 |
|
---|
| 7021 | /* version */
|
---|
| 7022 | der->versionSz = SetMyVersion(cert->version, der->version, FALSE);
|
---|
| 7023 |
|
---|
| 7024 | /* subject name */
|
---|
| 7025 | der->subjectSz = SetName(der->subject, sizeof(der->subject), &cert->subject);
|
---|
| 7026 | if (der->subjectSz == 0)
|
---|
| 7027 | return SUBJECT_E;
|
---|
| 7028 |
|
---|
| 7029 | /* public key */
|
---|
| 7030 | if (cert->keyType == RSA_KEY) {
|
---|
| 7031 | if (rsaKey == NULL)
|
---|
| 7032 | return PUBLIC_KEY_E;
|
---|
| 7033 | der->publicKeySz = SetRsaPublicKey(der->publicKey, rsaKey,
|
---|
| 7034 | sizeof(der->publicKey), 1);
|
---|
| 7035 | if (der->publicKeySz <= 0)
|
---|
| 7036 | return PUBLIC_KEY_E;
|
---|
| 7037 | }
|
---|
| 7038 |
|
---|
| 7039 | #ifdef HAVE_ECC
|
---|
| 7040 | if (cert->keyType == ECC_KEY) {
|
---|
| 7041 | if (eccKey == NULL)
|
---|
| 7042 | return PUBLIC_KEY_E;
|
---|
| 7043 | der->publicKeySz = SetEccPublicKey(der->publicKey, eccKey, 1);
|
---|
| 7044 | if (der->publicKeySz <= 0)
|
---|
| 7045 | return PUBLIC_KEY_E;
|
---|
| 7046 | }
|
---|
| 7047 | #endif /* HAVE_ECC */
|
---|
| 7048 |
|
---|
| 7049 | /* set the extensions */
|
---|
| 7050 | der->extensionsSz = 0;
|
---|
| 7051 |
|
---|
| 7052 | /* CA */
|
---|
| 7053 | if (cert->isCA) {
|
---|
| 7054 | der->caSz = SetCa(der->ca, sizeof(der->ca));
|
---|
| 7055 | if (der->caSz == 0)
|
---|
| 7056 | return CA_TRUE_E;
|
---|
| 7057 |
|
---|
| 7058 | der->extensionsSz += der->caSz;
|
---|
| 7059 | }
|
---|
| 7060 | else
|
---|
| 7061 | der->caSz = 0;
|
---|
| 7062 |
|
---|
| 7063 | #ifdef WOLFSSL_CERT_EXT
|
---|
| 7064 | /* SKID */
|
---|
| 7065 | if (cert->skidSz) {
|
---|
| 7066 | /* check the provided SKID size */
|
---|
| 7067 | if (cert->skidSz > (int)sizeof(der->skid))
|
---|
| 7068 | return SKID_E;
|
---|
| 7069 |
|
---|
| 7070 | der->skidSz = SetSKID(der->skid, sizeof(der->skid),
|
---|
| 7071 | cert->skid, cert->skidSz);
|
---|
| 7072 | if (der->skidSz == 0)
|
---|
| 7073 | return SKID_E;
|
---|
| 7074 |
|
---|
| 7075 | der->extensionsSz += der->skidSz;
|
---|
| 7076 | }
|
---|
| 7077 | else
|
---|
| 7078 | der->skidSz = 0;
|
---|
| 7079 |
|
---|
| 7080 | /* Key Usage */
|
---|
| 7081 | if (cert->keyUsage != 0){
|
---|
| 7082 | der->keyUsageSz = SetKeyUsage(der->keyUsage, sizeof(der->keyUsage),
|
---|
| 7083 | cert->keyUsage);
|
---|
| 7084 | if (der->keyUsageSz == 0)
|
---|
| 7085 | return KEYUSAGE_E;
|
---|
| 7086 |
|
---|
| 7087 | der->extensionsSz += der->keyUsageSz;
|
---|
| 7088 | }
|
---|
| 7089 | else
|
---|
| 7090 | der->keyUsageSz = 0;
|
---|
| 7091 | #endif /* WOLFSSL_CERT_EXT */
|
---|
| 7092 |
|
---|
| 7093 | /* put extensions */
|
---|
| 7094 | if (der->extensionsSz > 0) {
|
---|
| 7095 | int ret;
|
---|
| 7096 |
|
---|
| 7097 | /* put the start of sequence (ID, Size) */
|
---|
| 7098 | der->extensionsSz = SetSequence(der->extensionsSz, der->extensions);
|
---|
| 7099 | if (der->extensionsSz == 0)
|
---|
| 7100 | return EXTENSIONS_E;
|
---|
| 7101 |
|
---|
| 7102 | /* put CA */
|
---|
| 7103 | if (der->caSz) {
|
---|
| 7104 | ret = SetExtensions(der->extensions, sizeof(der->extensions),
|
---|
| 7105 | &der->extensionsSz,
|
---|
| 7106 | der->ca, der->caSz);
|
---|
| 7107 | if (ret == 0)
|
---|
| 7108 | return EXTENSIONS_E;
|
---|
| 7109 | }
|
---|
| 7110 |
|
---|
| 7111 | #ifdef WOLFSSL_CERT_EXT
|
---|
| 7112 | /* put SKID */
|
---|
| 7113 | if (der->skidSz) {
|
---|
| 7114 | ret = SetExtensions(der->extensions, sizeof(der->extensions),
|
---|
| 7115 | &der->extensionsSz,
|
---|
| 7116 | der->skid, der->skidSz);
|
---|
| 7117 | if (ret == 0)
|
---|
| 7118 | return EXTENSIONS_E;
|
---|
| 7119 | }
|
---|
| 7120 |
|
---|
| 7121 | /* put AKID */
|
---|
| 7122 | if (der->akidSz) {
|
---|
| 7123 | ret = SetExtensions(der->extensions, sizeof(der->extensions),
|
---|
| 7124 | &der->extensionsSz,
|
---|
| 7125 | der->akid, der->akidSz);
|
---|
| 7126 | if (ret == 0)
|
---|
| 7127 | return EXTENSIONS_E;
|
---|
| 7128 | }
|
---|
| 7129 |
|
---|
| 7130 | /* put KeyUsage */
|
---|
| 7131 | if (der->keyUsageSz) {
|
---|
| 7132 | ret = SetExtensions(der->extensions, sizeof(der->extensions),
|
---|
| 7133 | &der->extensionsSz,
|
---|
| 7134 | der->keyUsage, der->keyUsageSz);
|
---|
| 7135 | if (ret == 0)
|
---|
| 7136 | return EXTENSIONS_E;
|
---|
| 7137 | }
|
---|
| 7138 |
|
---|
| 7139 | #endif /* WOLFSSL_CERT_EXT */
|
---|
| 7140 | }
|
---|
| 7141 |
|
---|
| 7142 | der->attribSz = SetReqAttrib(der->attrib,
|
---|
| 7143 | cert->challengePw, der->extensionsSz);
|
---|
| 7144 | if (der->attribSz == 0)
|
---|
| 7145 | return REQ_ATTRIBUTE_E;
|
---|
| 7146 |
|
---|
| 7147 | der->total = der->versionSz + der->subjectSz + der->publicKeySz +
|
---|
| 7148 | der->extensionsSz + der->attribSz;
|
---|
| 7149 |
|
---|
| 7150 | return 0;
|
---|
| 7151 | }
|
---|
| 7152 |
|
---|
| 7153 |
|
---|
| 7154 | /* write DER encoded cert req to buffer, size already checked */
|
---|
| 7155 | static int WriteCertReqBody(DerCert* der, byte* buffer)
|
---|
| 7156 | {
|
---|
| 7157 | int idx;
|
---|
| 7158 |
|
---|
| 7159 | /* signed part header */
|
---|
| 7160 | idx = SetSequence(der->total, buffer);
|
---|
| 7161 | /* version */
|
---|
| 7162 | XMEMCPY(buffer + idx, der->version, der->versionSz);
|
---|
| 7163 | idx += der->versionSz;
|
---|
| 7164 | /* subject */
|
---|
| 7165 | XMEMCPY(buffer + idx, der->subject, der->subjectSz);
|
---|
| 7166 | idx += der->subjectSz;
|
---|
| 7167 | /* public key */
|
---|
| 7168 | XMEMCPY(buffer + idx, der->publicKey, der->publicKeySz);
|
---|
| 7169 | idx += der->publicKeySz;
|
---|
| 7170 | /* attributes */
|
---|
| 7171 | XMEMCPY(buffer + idx, der->attrib, der->attribSz);
|
---|
| 7172 | idx += der->attribSz;
|
---|
| 7173 | /* extensions */
|
---|
| 7174 | if (der->extensionsSz) {
|
---|
| 7175 | XMEMCPY(buffer + idx, der->extensions, min(der->extensionsSz,
|
---|
| 7176 | sizeof(der->extensions)));
|
---|
| 7177 | idx += der->extensionsSz;
|
---|
| 7178 | }
|
---|
| 7179 |
|
---|
| 7180 | return idx;
|
---|
| 7181 | }
|
---|
| 7182 |
|
---|
| 7183 |
|
---|
| 7184 | int wc_MakeCertReq(Cert* cert, byte* derBuffer, word32 derSz,
|
---|
| 7185 | RsaKey* rsaKey, ecc_key* eccKey)
|
---|
| 7186 | {
|
---|
| 7187 | int ret;
|
---|
| 7188 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7189 | DerCert* der;
|
---|
| 7190 | #else
|
---|
| 7191 | DerCert der[1];
|
---|
| 7192 | #endif
|
---|
| 7193 |
|
---|
| 7194 | cert->keyType = eccKey ? ECC_KEY : RSA_KEY;
|
---|
| 7195 |
|
---|
| 7196 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7197 | der = (DerCert*)XMALLOC(sizeof(DerCert), NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7198 | if (der == NULL)
|
---|
| 7199 | return MEMORY_E;
|
---|
| 7200 | #endif
|
---|
| 7201 |
|
---|
| 7202 | ret = EncodeCertReq(cert, der, rsaKey, eccKey);
|
---|
| 7203 |
|
---|
| 7204 | if (ret == 0) {
|
---|
| 7205 | if (der->total + MAX_SEQ_SZ * 2 > (int)derSz)
|
---|
| 7206 | ret = BUFFER_E;
|
---|
| 7207 | else
|
---|
| 7208 | ret = cert->bodySz = WriteCertReqBody(der, derBuffer);
|
---|
| 7209 | }
|
---|
| 7210 |
|
---|
| 7211 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7212 | XFREE(der, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7213 | #endif
|
---|
| 7214 |
|
---|
| 7215 | return ret;
|
---|
| 7216 | }
|
---|
| 7217 |
|
---|
| 7218 | #endif /* WOLFSSL_CERT_REQ */
|
---|
| 7219 |
|
---|
| 7220 |
|
---|
| 7221 | int wc_SignCert(int requestSz, int sType, byte* buffer, word32 buffSz,
|
---|
| 7222 | RsaKey* rsaKey, ecc_key* eccKey, WC_RNG* rng)
|
---|
| 7223 | {
|
---|
| 7224 | int sigSz;
|
---|
| 7225 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7226 | byte* sig;
|
---|
| 7227 | #else
|
---|
| 7228 | byte sig[MAX_ENCODED_SIG_SZ];
|
---|
| 7229 | #endif
|
---|
| 7230 |
|
---|
| 7231 | if (requestSz < 0)
|
---|
| 7232 | return requestSz;
|
---|
| 7233 |
|
---|
| 7234 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7235 | sig = (byte*)XMALLOC(MAX_ENCODED_SIG_SZ, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7236 | if (sig == NULL)
|
---|
| 7237 | return MEMORY_E;
|
---|
| 7238 | #endif
|
---|
| 7239 |
|
---|
| 7240 | sigSz = MakeSignature(buffer, requestSz, sig, MAX_ENCODED_SIG_SZ, rsaKey,
|
---|
| 7241 | eccKey, rng, sType);
|
---|
| 7242 |
|
---|
| 7243 | if (sigSz >= 0) {
|
---|
| 7244 | if (requestSz + MAX_SEQ_SZ * 2 + sigSz > (int)buffSz)
|
---|
| 7245 | sigSz = BUFFER_E;
|
---|
| 7246 | else
|
---|
| 7247 | sigSz = AddSignature(buffer, requestSz, sig, sigSz, sType);
|
---|
| 7248 | }
|
---|
| 7249 |
|
---|
| 7250 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7251 | XFREE(sig, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7252 | #endif
|
---|
| 7253 |
|
---|
| 7254 | return sigSz;
|
---|
| 7255 | }
|
---|
| 7256 |
|
---|
| 7257 |
|
---|
| 7258 | int wc_MakeSelfCert(Cert* cert, byte* buffer, word32 buffSz,
|
---|
| 7259 | RsaKey* key, WC_RNG* rng)
|
---|
| 7260 | {
|
---|
| 7261 | int ret;
|
---|
| 7262 |
|
---|
| 7263 | ret = wc_MakeCert(cert, buffer, buffSz, key, NULL, rng);
|
---|
| 7264 | if (ret < 0)
|
---|
| 7265 | return ret;
|
---|
| 7266 |
|
---|
| 7267 | return wc_SignCert(cert->bodySz, cert->sigType,
|
---|
| 7268 | buffer, buffSz, key, NULL, rng);
|
---|
| 7269 | }
|
---|
| 7270 |
|
---|
| 7271 |
|
---|
| 7272 | #ifdef WOLFSSL_CERT_EXT
|
---|
| 7273 |
|
---|
| 7274 | /* Set KID from RSA or ECC public key */
|
---|
| 7275 | static int SetKeyIdFromPublicKey(Cert *cert, RsaKey *rsakey, ecc_key *eckey,
|
---|
| 7276 | byte *ntruKey, word16 ntruKeySz, int kid_type)
|
---|
| 7277 | {
|
---|
| 7278 | byte *buffer;
|
---|
| 7279 | int bufferSz, ret;
|
---|
| 7280 |
|
---|
| 7281 | #ifndef HAVE_NTRU
|
---|
| 7282 | (void)ntruKeySz;
|
---|
| 7283 | #endif
|
---|
| 7284 |
|
---|
| 7285 | if (cert == NULL || (rsakey == NULL && eckey == NULL && ntruKey == NULL) ||
|
---|
| 7286 | (rsakey != NULL && eckey != NULL) ||
|
---|
| 7287 | (rsakey != NULL && ntruKey != NULL) ||
|
---|
| 7288 | (ntruKey != NULL && eckey != NULL) ||
|
---|
| 7289 | (kid_type != SKID_TYPE && kid_type != AKID_TYPE))
|
---|
| 7290 | return BAD_FUNC_ARG;
|
---|
| 7291 |
|
---|
| 7292 | buffer = (byte *)XMALLOC(MAX_PUBLIC_KEY_SZ, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7293 | if (buffer == NULL)
|
---|
| 7294 | return MEMORY_E;
|
---|
| 7295 |
|
---|
| 7296 | /* RSA public key */
|
---|
| 7297 | if (rsakey != NULL)
|
---|
| 7298 | bufferSz = SetRsaPublicKey(buffer, rsakey, MAX_PUBLIC_KEY_SZ, 0);
|
---|
| 7299 | #ifdef HAVE_ECC
|
---|
| 7300 | /* ECC public key */
|
---|
| 7301 | else if (eckey != NULL)
|
---|
| 7302 | bufferSz = SetEccPublicKey(buffer, eckey, 0);
|
---|
| 7303 | #endif /* HAVE_ECC */
|
---|
| 7304 | #ifdef HAVE_NTRU
|
---|
| 7305 | /* NTRU public key */
|
---|
| 7306 | else if (ntruKey != NULL) {
|
---|
| 7307 | bufferSz = MAX_PUBLIC_KEY_SZ;
|
---|
| 7308 | ret = ntru_crypto_ntru_encrypt_publicKey2SubjectPublicKeyInfo(
|
---|
| 7309 | ntruKeySz, ntruKey, (word16 *)(&bufferSz), buffer);
|
---|
| 7310 | if (ret != NTRU_OK)
|
---|
| 7311 | bufferSz = -1;
|
---|
| 7312 | }
|
---|
| 7313 | #endif
|
---|
| 7314 | else
|
---|
| 7315 | bufferSz = -1;
|
---|
| 7316 |
|
---|
| 7317 | if (bufferSz <= 0) {
|
---|
| 7318 | XFREE(buffer, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7319 | return PUBLIC_KEY_E;
|
---|
| 7320 | }
|
---|
| 7321 |
|
---|
| 7322 | /* Compute SKID by hashing public key */
|
---|
| 7323 | #ifdef NO_SHA
|
---|
| 7324 | if (kid_type == SKID_TYPE) {
|
---|
| 7325 | ret = wc_Sha256Hash(buffer, bufferSz, cert->skid);
|
---|
| 7326 | cert->skidSz = SHA256_DIGEST_SIZE;
|
---|
| 7327 | }
|
---|
| 7328 | else if (kid_type == AKID_TYPE) {
|
---|
| 7329 | ret = wc_Sha256Hash(buffer, bufferSz, cert->akid);
|
---|
| 7330 | cert->akidSz = SHA256_DIGEST_SIZE;
|
---|
| 7331 | }
|
---|
| 7332 | else
|
---|
| 7333 | ret = BAD_FUNC_ARG;
|
---|
| 7334 | #else /* NO_SHA */
|
---|
| 7335 | if (kid_type == SKID_TYPE) {
|
---|
| 7336 | ret = wc_ShaHash(buffer, bufferSz, cert->skid);
|
---|
| 7337 | cert->skidSz = SHA_DIGEST_SIZE;
|
---|
| 7338 | }
|
---|
| 7339 | else if (kid_type == AKID_TYPE) {
|
---|
| 7340 | ret = wc_ShaHash(buffer, bufferSz, cert->akid);
|
---|
| 7341 | cert->akidSz = SHA_DIGEST_SIZE;
|
---|
| 7342 | }
|
---|
| 7343 | else
|
---|
| 7344 | ret = BAD_FUNC_ARG;
|
---|
| 7345 | #endif /* NO_SHA */
|
---|
| 7346 |
|
---|
| 7347 | XFREE(buffer, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7348 | return ret;
|
---|
| 7349 | }
|
---|
| 7350 |
|
---|
| 7351 | /* Set SKID from RSA or ECC public key */
|
---|
| 7352 | int wc_SetSubjectKeyIdFromPublicKey(Cert *cert, RsaKey *rsakey, ecc_key *eckey)
|
---|
| 7353 | {
|
---|
| 7354 | return SetKeyIdFromPublicKey(cert, rsakey, eckey, NULL, 0, SKID_TYPE);
|
---|
| 7355 | }
|
---|
| 7356 |
|
---|
| 7357 | #ifdef HAVE_NTRU
|
---|
| 7358 | /* Set SKID from NTRU public key */
|
---|
| 7359 | int wc_SetSubjectKeyIdFromNtruPublicKey(Cert *cert,
|
---|
| 7360 | byte *ntruKey, word16 ntruKeySz)
|
---|
| 7361 | {
|
---|
| 7362 | return SetKeyIdFromPublicKey(cert, NULL,NULL,ntruKey, ntruKeySz, SKID_TYPE);
|
---|
| 7363 | }
|
---|
| 7364 | #endif
|
---|
| 7365 |
|
---|
| 7366 | /* Set SKID from RSA or ECC public key */
|
---|
| 7367 | int wc_SetAuthKeyIdFromPublicKey(Cert *cert, RsaKey *rsakey, ecc_key *eckey)
|
---|
| 7368 | {
|
---|
| 7369 | return SetKeyIdFromPublicKey(cert, rsakey, eckey, NULL, 0, AKID_TYPE);
|
---|
| 7370 | }
|
---|
| 7371 |
|
---|
| 7372 |
|
---|
| 7373 | #ifndef NO_FILESYSTEM
|
---|
| 7374 |
|
---|
| 7375 | /* Set SKID from public key file in PEM */
|
---|
| 7376 | int wc_SetSubjectKeyId(Cert *cert, const char* file)
|
---|
| 7377 | {
|
---|
| 7378 | int ret, derSz;
|
---|
| 7379 | byte* der;
|
---|
| 7380 | word32 idx;
|
---|
| 7381 | RsaKey *rsakey = NULL;
|
---|
| 7382 | ecc_key *eckey = NULL;
|
---|
| 7383 |
|
---|
| 7384 | if (cert == NULL || file == NULL)
|
---|
| 7385 | return BAD_FUNC_ARG;
|
---|
| 7386 |
|
---|
| 7387 | der = (byte*)XMALLOC(MAX_PUBLIC_KEY_SZ, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7388 | if (der == NULL) {
|
---|
| 7389 | WOLFSSL_MSG("wc_SetSubjectKeyId memory Problem");
|
---|
| 7390 | return MEMORY_E;
|
---|
| 7391 | }
|
---|
| 7392 |
|
---|
| 7393 | derSz = wolfSSL_PemPubKeyToDer(file, der, MAX_PUBLIC_KEY_SZ);
|
---|
| 7394 | if (derSz <= 0)
|
---|
| 7395 | {
|
---|
| 7396 | XFREE(der, NULL, DYNAMIC_TYPE_CERT);
|
---|
| 7397 | return derSz;
|
---|
| 7398 | }
|
---|
| 7399 |
|
---|
| 7400 | /* Load PubKey in internal structure */
|
---|
| 7401 | rsakey = (RsaKey*) XMALLOC(sizeof(RsaKey), NULL, DYNAMIC_TYPE_RSA);
|
---|
| 7402 | if (rsakey == NULL) {
|
---|
| 7403 | XFREE(der, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7404 | return MEMORY_E;
|
---|
| 7405 | }
|
---|
| 7406 |
|
---|
| 7407 | if (wc_InitRsaKey(rsakey, NULL) != 0) {
|
---|
| 7408 | WOLFSSL_MSG("wc_InitRsaKey failure");
|
---|
| 7409 | XFREE(rsakey, NULL, DYNAMIC_TYPE_RSA);
|
---|
| 7410 | XFREE(der, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7411 | return MEMORY_E;
|
---|
| 7412 | }
|
---|
| 7413 |
|
---|
| 7414 | idx = 0;
|
---|
| 7415 | ret = wc_RsaPublicKeyDecode(der, &idx, rsakey, derSz);
|
---|
| 7416 | if (ret != 0) {
|
---|
| 7417 | WOLFSSL_MSG("wc_RsaPublicKeyDecode failed");
|
---|
| 7418 | wc_FreeRsaKey(rsakey);
|
---|
| 7419 | XFREE(rsakey, NULL, DYNAMIC_TYPE_RSA);
|
---|
| 7420 | rsakey = NULL;
|
---|
| 7421 | #ifdef HAVE_ECC
|
---|
| 7422 | /* Check to load ecc public key */
|
---|
| 7423 | eckey = (ecc_key*) XMALLOC(sizeof(ecc_key), NULL, DYNAMIC_TYPE_ECC);
|
---|
| 7424 | if (eckey == NULL) {
|
---|
| 7425 | XFREE(der, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7426 | return MEMORY_E;
|
---|
| 7427 | }
|
---|
| 7428 |
|
---|
| 7429 | if (wc_ecc_init(eckey) != 0) {
|
---|
| 7430 | WOLFSSL_MSG("wc_ecc_init failure");
|
---|
| 7431 | wc_ecc_free(eckey);
|
---|
| 7432 | XFREE(eckey, NULL, DYNAMIC_TYPE_ECC);
|
---|
| 7433 | XFREE(der, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7434 | return MEMORY_E;
|
---|
| 7435 | }
|
---|
| 7436 |
|
---|
| 7437 | idx = 0;
|
---|
| 7438 | ret = wc_EccPublicKeyDecode(der, &idx, eckey, derSz);
|
---|
| 7439 | if (ret != 0) {
|
---|
| 7440 | WOLFSSL_MSG("wc_EccPublicKeyDecode failed");
|
---|
| 7441 | XFREE(der, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7442 | wc_ecc_free(eckey);
|
---|
| 7443 | return PUBLIC_KEY_E;
|
---|
| 7444 | }
|
---|
| 7445 | #else
|
---|
| 7446 | XFREE(der, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7447 | return PUBLIC_KEY_E;
|
---|
| 7448 | #endif /* HAVE_ECC */
|
---|
| 7449 | }
|
---|
| 7450 |
|
---|
| 7451 | XFREE(der, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7452 |
|
---|
| 7453 | ret = wc_SetSubjectKeyIdFromPublicKey(cert, rsakey, eckey);
|
---|
| 7454 |
|
---|
| 7455 | wc_FreeRsaKey(rsakey);
|
---|
| 7456 | XFREE(rsakey, NULL, DYNAMIC_TYPE_RSA);
|
---|
| 7457 | #ifdef HAVE_ECC
|
---|
| 7458 | wc_ecc_free(eckey);
|
---|
| 7459 | XFREE(eckey, NULL, DYNAMIC_TYPE_ECC);
|
---|
| 7460 | #endif
|
---|
| 7461 | return ret;
|
---|
| 7462 | }
|
---|
| 7463 |
|
---|
| 7464 | #endif /* NO_FILESYSTEM */
|
---|
| 7465 |
|
---|
| 7466 | /* Set AKID from certificate contains in buffer (DER encoded) */
|
---|
| 7467 | int wc_SetAuthKeyIdFromCert(Cert *cert, const byte *der, int derSz)
|
---|
| 7468 | {
|
---|
| 7469 | int ret;
|
---|
| 7470 |
|
---|
| 7471 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7472 | DecodedCert* decoded;
|
---|
| 7473 | #else
|
---|
| 7474 | DecodedCert decoded[1];
|
---|
| 7475 | #endif
|
---|
| 7476 |
|
---|
| 7477 | if (cert == NULL || der == NULL || derSz <= 0)
|
---|
| 7478 | return BAD_FUNC_ARG;
|
---|
| 7479 |
|
---|
| 7480 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7481 | decoded = (DecodedCert*)XMALLOC(sizeof(DecodedCert),
|
---|
| 7482 | NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7483 | if (decoded == NULL)
|
---|
| 7484 | return MEMORY_E;
|
---|
| 7485 | #endif
|
---|
| 7486 |
|
---|
| 7487 | /* decode certificate and get SKID that will be AKID of current cert */
|
---|
| 7488 | InitDecodedCert(decoded, (byte*)der, derSz, 0);
|
---|
| 7489 | ret = ParseCert(decoded, CERT_TYPE, NO_VERIFY, 0);
|
---|
| 7490 | if (ret != 0) {
|
---|
| 7491 | FreeDecodedCert(decoded);
|
---|
| 7492 | return ret;
|
---|
| 7493 | }
|
---|
| 7494 |
|
---|
| 7495 | /* Subject Key Id not found !! */
|
---|
| 7496 | if (decoded->extSubjKeyIdSet == 0) {
|
---|
| 7497 | FreeDecodedCert(decoded);
|
---|
| 7498 | return ASN_NO_SKID;
|
---|
| 7499 | }
|
---|
| 7500 |
|
---|
| 7501 | /* SKID invalid size */
|
---|
| 7502 | if (sizeof(cert->akid) < sizeof(decoded->extSubjKeyId)) {
|
---|
| 7503 | FreeDecodedCert(decoded);
|
---|
| 7504 | return MEMORY_E;
|
---|
| 7505 | }
|
---|
| 7506 |
|
---|
| 7507 | /* Put the SKID of CA to AKID of certificate */
|
---|
| 7508 | XMEMCPY(cert->akid, decoded->extSubjKeyId, KEYID_SIZE);
|
---|
| 7509 | cert->akidSz = KEYID_SIZE;
|
---|
| 7510 |
|
---|
| 7511 | FreeDecodedCert(decoded);
|
---|
| 7512 | return 0;
|
---|
| 7513 | }
|
---|
| 7514 |
|
---|
| 7515 |
|
---|
| 7516 | #ifndef NO_FILESYSTEM
|
---|
| 7517 |
|
---|
| 7518 | /* Set AKID from certificate file in PEM */
|
---|
| 7519 | int wc_SetAuthKeyId(Cert *cert, const char* file)
|
---|
| 7520 | {
|
---|
| 7521 | int ret;
|
---|
| 7522 | int derSz;
|
---|
| 7523 | byte* der;
|
---|
| 7524 |
|
---|
| 7525 | if (cert == NULL || file == NULL)
|
---|
| 7526 | return BAD_FUNC_ARG;
|
---|
| 7527 |
|
---|
| 7528 | der = (byte*)XMALLOC(EIGHTK_BUF, NULL, DYNAMIC_TYPE_CERT);
|
---|
| 7529 | if (der == NULL) {
|
---|
| 7530 | WOLFSSL_MSG("wc_SetAuthKeyId OOF Problem");
|
---|
| 7531 | return MEMORY_E;
|
---|
| 7532 | }
|
---|
| 7533 |
|
---|
| 7534 | derSz = wolfSSL_PemCertToDer(file, der, EIGHTK_BUF);
|
---|
| 7535 | if (derSz <= 0)
|
---|
| 7536 | {
|
---|
| 7537 | XFREE(der, NULL, DYNAMIC_TYPE_CERT);
|
---|
| 7538 | return derSz;
|
---|
| 7539 | }
|
---|
| 7540 |
|
---|
| 7541 | ret = wc_SetAuthKeyIdFromCert(cert, der, derSz);
|
---|
| 7542 | XFREE(der, NULL, DYNAMIC_TYPE_CERT);
|
---|
| 7543 |
|
---|
| 7544 | return ret;
|
---|
| 7545 | }
|
---|
| 7546 |
|
---|
| 7547 | #endif /* NO_FILESYSTEM */
|
---|
| 7548 |
|
---|
| 7549 | /* Set KeyUsage from human readale string */
|
---|
| 7550 | int wc_SetKeyUsage(Cert *cert, const char *value)
|
---|
| 7551 | {
|
---|
| 7552 | char *token, *str, *ptr;
|
---|
| 7553 | word32 len;
|
---|
| 7554 |
|
---|
| 7555 | if (cert == NULL || value == NULL)
|
---|
| 7556 | return BAD_FUNC_ARG;
|
---|
| 7557 |
|
---|
| 7558 | cert->keyUsage = 0;
|
---|
| 7559 |
|
---|
| 7560 | str = (char *)XMALLOC(XSTRLEN(value)+1, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7561 | if (str == NULL)
|
---|
| 7562 | return MEMORY_E;
|
---|
| 7563 |
|
---|
| 7564 | XMEMSET(str, 0, XSTRLEN(value)+1);
|
---|
| 7565 | XSTRNCPY(str, value, XSTRLEN(value));
|
---|
| 7566 |
|
---|
| 7567 | /* parse value, and set corresponding Key Usage value */
|
---|
| 7568 | token = XSTRTOK(str, ",", &ptr);
|
---|
| 7569 | while (token != NULL)
|
---|
| 7570 | {
|
---|
| 7571 | len = (word32)XSTRLEN(token);
|
---|
| 7572 |
|
---|
| 7573 | if (!XSTRNCASECMP(token, "digitalSignature", len))
|
---|
| 7574 | cert->keyUsage |= KEYUSE_DIGITAL_SIG;
|
---|
| 7575 | else if (!XSTRNCASECMP(token, "nonRepudiation", len) ||
|
---|
| 7576 | !XSTRNCASECMP(token, "contentCommitment", len))
|
---|
| 7577 | cert->keyUsage |= KEYUSE_CONTENT_COMMIT;
|
---|
| 7578 | else if (!XSTRNCASECMP(token, "keyEncipherment", len))
|
---|
| 7579 | cert->keyUsage |= KEYUSE_KEY_ENCIPHER;
|
---|
| 7580 | else if (!XSTRNCASECMP(token, "dataEncipherment", len))
|
---|
| 7581 | cert->keyUsage |= KEYUSE_DATA_ENCIPHER;
|
---|
| 7582 | else if (!XSTRNCASECMP(token, "keyAgreement", len))
|
---|
| 7583 | cert->keyUsage |= KEYUSE_KEY_AGREE;
|
---|
| 7584 | else if (!XSTRNCASECMP(token, "keyCertSign", len))
|
---|
| 7585 | cert->keyUsage |= KEYUSE_KEY_CERT_SIGN;
|
---|
| 7586 | else if (!XSTRNCASECMP(token, "cRLSign", len))
|
---|
| 7587 | cert->keyUsage |= KEYUSE_CRL_SIGN;
|
---|
| 7588 | else if (!XSTRNCASECMP(token, "encipherOnly", len))
|
---|
| 7589 | cert->keyUsage |= KEYUSE_ENCIPHER_ONLY;
|
---|
| 7590 | else if (!XSTRNCASECMP(token, "decipherOnly", len))
|
---|
| 7591 | cert->keyUsage |= KEYUSE_DECIPHER_ONLY;
|
---|
| 7592 | else
|
---|
| 7593 | return KEYUSAGE_E;
|
---|
| 7594 |
|
---|
| 7595 | token = XSTRTOK(NULL, ",", &ptr);
|
---|
| 7596 | }
|
---|
| 7597 |
|
---|
| 7598 | XFREE(str, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7599 | return 0;
|
---|
| 7600 | }
|
---|
| 7601 | #endif /* WOLFSSL_CERT_EXT */
|
---|
| 7602 |
|
---|
| 7603 |
|
---|
| 7604 | #ifdef WOLFSSL_ALT_NAMES
|
---|
| 7605 |
|
---|
| 7606 | /* Set Alt Names from der cert, return 0 on success */
|
---|
| 7607 | static int SetAltNamesFromCert(Cert* cert, const byte* der, int derSz)
|
---|
| 7608 | {
|
---|
| 7609 | int ret;
|
---|
| 7610 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7611 | DecodedCert* decoded;
|
---|
| 7612 | #else
|
---|
| 7613 | DecodedCert decoded[1];
|
---|
| 7614 | #endif
|
---|
| 7615 |
|
---|
| 7616 | if (derSz < 0)
|
---|
| 7617 | return derSz;
|
---|
| 7618 |
|
---|
| 7619 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7620 | decoded = (DecodedCert*)XMALLOC(sizeof(DecodedCert), NULL,
|
---|
| 7621 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7622 | if (decoded == NULL)
|
---|
| 7623 | return MEMORY_E;
|
---|
| 7624 | #endif
|
---|
| 7625 |
|
---|
| 7626 | InitDecodedCert(decoded, (byte*)der, derSz, 0);
|
---|
| 7627 | ret = ParseCertRelative(decoded, CA_TYPE, NO_VERIFY, 0);
|
---|
| 7628 |
|
---|
| 7629 | if (ret < 0) {
|
---|
| 7630 | WOLFSSL_MSG("ParseCertRelative error");
|
---|
| 7631 | }
|
---|
| 7632 | else if (decoded->extensions) {
|
---|
| 7633 | byte b;
|
---|
| 7634 | int length;
|
---|
| 7635 | word32 maxExtensionsIdx;
|
---|
| 7636 |
|
---|
| 7637 | decoded->srcIdx = decoded->extensionsIdx;
|
---|
| 7638 | b = decoded->source[decoded->srcIdx++];
|
---|
| 7639 |
|
---|
| 7640 | if (b != ASN_EXTENSIONS) {
|
---|
| 7641 | ret = ASN_PARSE_E;
|
---|
| 7642 | }
|
---|
| 7643 | else if (GetLength(decoded->source, &decoded->srcIdx, &length,
|
---|
| 7644 | decoded->maxIdx) < 0) {
|
---|
| 7645 | ret = ASN_PARSE_E;
|
---|
| 7646 | }
|
---|
| 7647 | else if (GetSequence(decoded->source, &decoded->srcIdx, &length,
|
---|
| 7648 | decoded->maxIdx) < 0) {
|
---|
| 7649 | ret = ASN_PARSE_E;
|
---|
| 7650 | }
|
---|
| 7651 | else {
|
---|
| 7652 | maxExtensionsIdx = decoded->srcIdx + length;
|
---|
| 7653 |
|
---|
| 7654 | while (decoded->srcIdx < maxExtensionsIdx) {
|
---|
| 7655 | word32 oid;
|
---|
| 7656 | word32 startIdx = decoded->srcIdx;
|
---|
| 7657 | word32 tmpIdx;
|
---|
| 7658 |
|
---|
| 7659 | if (GetSequence(decoded->source, &decoded->srcIdx, &length,
|
---|
| 7660 | decoded->maxIdx) < 0) {
|
---|
| 7661 | ret = ASN_PARSE_E;
|
---|
| 7662 | break;
|
---|
| 7663 | }
|
---|
| 7664 |
|
---|
| 7665 | tmpIdx = decoded->srcIdx;
|
---|
| 7666 | decoded->srcIdx = startIdx;
|
---|
| 7667 |
|
---|
| 7668 | if (GetAlgoId(decoded->source, &decoded->srcIdx, &oid,
|
---|
| 7669 | decoded->maxIdx) < 0) {
|
---|
| 7670 | ret = ASN_PARSE_E;
|
---|
| 7671 | break;
|
---|
| 7672 | }
|
---|
| 7673 |
|
---|
| 7674 | if (oid == ALT_NAMES_OID) {
|
---|
| 7675 | cert->altNamesSz = length + (tmpIdx - startIdx);
|
---|
| 7676 |
|
---|
| 7677 | if (cert->altNamesSz < (int)sizeof(cert->altNames))
|
---|
| 7678 | XMEMCPY(cert->altNames, &decoded->source[startIdx],
|
---|
| 7679 | cert->altNamesSz);
|
---|
| 7680 | else {
|
---|
| 7681 | cert->altNamesSz = 0;
|
---|
| 7682 | WOLFSSL_MSG("AltNames extensions too big");
|
---|
| 7683 | ret = ALT_NAME_E;
|
---|
| 7684 | break;
|
---|
| 7685 | }
|
---|
| 7686 | }
|
---|
| 7687 | decoded->srcIdx = tmpIdx + length;
|
---|
| 7688 | }
|
---|
| 7689 | }
|
---|
| 7690 | }
|
---|
| 7691 |
|
---|
| 7692 | FreeDecodedCert(decoded);
|
---|
| 7693 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7694 | XFREE(decoded, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7695 | #endif
|
---|
| 7696 |
|
---|
| 7697 | return ret < 0 ? ret : 0;
|
---|
| 7698 | }
|
---|
| 7699 |
|
---|
| 7700 |
|
---|
| 7701 | /* Set Dates from der cert, return 0 on success */
|
---|
| 7702 | static int SetDatesFromCert(Cert* cert, const byte* der, int derSz)
|
---|
| 7703 | {
|
---|
| 7704 | int ret;
|
---|
| 7705 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7706 | DecodedCert* decoded;
|
---|
| 7707 | #else
|
---|
| 7708 | DecodedCert decoded[1];
|
---|
| 7709 | #endif
|
---|
| 7710 |
|
---|
| 7711 | WOLFSSL_ENTER("SetDatesFromCert");
|
---|
| 7712 | if (derSz < 0)
|
---|
| 7713 | return derSz;
|
---|
| 7714 |
|
---|
| 7715 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7716 | decoded = (DecodedCert*)XMALLOC(sizeof(DecodedCert), NULL,
|
---|
| 7717 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7718 | if (decoded == NULL)
|
---|
| 7719 | return MEMORY_E;
|
---|
| 7720 | #endif
|
---|
| 7721 |
|
---|
| 7722 | InitDecodedCert(decoded, (byte*)der, derSz, 0);
|
---|
| 7723 | ret = ParseCertRelative(decoded, CA_TYPE, NO_VERIFY, 0);
|
---|
| 7724 |
|
---|
| 7725 | if (ret < 0) {
|
---|
| 7726 | WOLFSSL_MSG("ParseCertRelative error");
|
---|
| 7727 | }
|
---|
| 7728 | else if (decoded->beforeDate == NULL || decoded->afterDate == NULL) {
|
---|
| 7729 | WOLFSSL_MSG("Couldn't extract dates");
|
---|
| 7730 | ret = -1;
|
---|
| 7731 | }
|
---|
| 7732 | else if (decoded->beforeDateLen > MAX_DATE_SIZE ||
|
---|
| 7733 | decoded->afterDateLen > MAX_DATE_SIZE) {
|
---|
| 7734 | WOLFSSL_MSG("Bad date size");
|
---|
| 7735 | ret = -1;
|
---|
| 7736 | }
|
---|
| 7737 | else {
|
---|
| 7738 | XMEMCPY(cert->beforeDate, decoded->beforeDate, decoded->beforeDateLen);
|
---|
| 7739 | XMEMCPY(cert->afterDate, decoded->afterDate, decoded->afterDateLen);
|
---|
| 7740 |
|
---|
| 7741 | cert->beforeDateSz = decoded->beforeDateLen;
|
---|
| 7742 | cert->afterDateSz = decoded->afterDateLen;
|
---|
| 7743 | }
|
---|
| 7744 |
|
---|
| 7745 | FreeDecodedCert(decoded);
|
---|
| 7746 |
|
---|
| 7747 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7748 | XFREE(decoded, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7749 | #endif
|
---|
| 7750 |
|
---|
| 7751 | return ret < 0 ? ret : 0;
|
---|
| 7752 | }
|
---|
| 7753 |
|
---|
| 7754 |
|
---|
| 7755 | #endif /* WOLFSSL_ALT_NAMES && !NO_RSA */
|
---|
| 7756 |
|
---|
| 7757 |
|
---|
| 7758 | /* Set cn name from der buffer, return 0 on success */
|
---|
| 7759 | static int SetNameFromCert(CertName* cn, const byte* der, int derSz)
|
---|
| 7760 | {
|
---|
| 7761 | int ret, sz;
|
---|
| 7762 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7763 | DecodedCert* decoded;
|
---|
| 7764 | #else
|
---|
| 7765 | DecodedCert decoded[1];
|
---|
| 7766 | #endif
|
---|
| 7767 |
|
---|
| 7768 | if (derSz < 0)
|
---|
| 7769 | return derSz;
|
---|
| 7770 |
|
---|
| 7771 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7772 | decoded = (DecodedCert*)XMALLOC(sizeof(DecodedCert), NULL,
|
---|
| 7773 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7774 | if (decoded == NULL)
|
---|
| 7775 | return MEMORY_E;
|
---|
| 7776 | #endif
|
---|
| 7777 |
|
---|
| 7778 | InitDecodedCert(decoded, (byte*)der, derSz, 0);
|
---|
| 7779 | ret = ParseCertRelative(decoded, CA_TYPE, NO_VERIFY, 0);
|
---|
| 7780 |
|
---|
| 7781 | if (ret < 0) {
|
---|
| 7782 | WOLFSSL_MSG("ParseCertRelative error");
|
---|
| 7783 | }
|
---|
| 7784 | else {
|
---|
| 7785 | if (decoded->subjectCN) {
|
---|
| 7786 | sz = (decoded->subjectCNLen < CTC_NAME_SIZE) ? decoded->subjectCNLen
|
---|
| 7787 | : CTC_NAME_SIZE - 1;
|
---|
| 7788 | strncpy(cn->commonName, decoded->subjectCN, CTC_NAME_SIZE);
|
---|
| 7789 | cn->commonName[sz] = 0;
|
---|
| 7790 | cn->commonNameEnc = decoded->subjectCNEnc;
|
---|
| 7791 | }
|
---|
| 7792 | if (decoded->subjectC) {
|
---|
| 7793 | sz = (decoded->subjectCLen < CTC_NAME_SIZE) ? decoded->subjectCLen
|
---|
| 7794 | : CTC_NAME_SIZE - 1;
|
---|
| 7795 | strncpy(cn->country, decoded->subjectC, CTC_NAME_SIZE);
|
---|
| 7796 | cn->country[sz] = 0;
|
---|
| 7797 | cn->countryEnc = decoded->subjectCEnc;
|
---|
| 7798 | }
|
---|
| 7799 | if (decoded->subjectST) {
|
---|
| 7800 | sz = (decoded->subjectSTLen < CTC_NAME_SIZE) ? decoded->subjectSTLen
|
---|
| 7801 | : CTC_NAME_SIZE - 1;
|
---|
| 7802 | strncpy(cn->state, decoded->subjectST, CTC_NAME_SIZE);
|
---|
| 7803 | cn->state[sz] = 0;
|
---|
| 7804 | cn->stateEnc = decoded->subjectSTEnc;
|
---|
| 7805 | }
|
---|
| 7806 | if (decoded->subjectL) {
|
---|
| 7807 | sz = (decoded->subjectLLen < CTC_NAME_SIZE) ? decoded->subjectLLen
|
---|
| 7808 | : CTC_NAME_SIZE - 1;
|
---|
| 7809 | strncpy(cn->locality, decoded->subjectL, CTC_NAME_SIZE);
|
---|
| 7810 | cn->locality[sz] = 0;
|
---|
| 7811 | cn->localityEnc = decoded->subjectLEnc;
|
---|
| 7812 | }
|
---|
| 7813 | if (decoded->subjectO) {
|
---|
| 7814 | sz = (decoded->subjectOLen < CTC_NAME_SIZE) ? decoded->subjectOLen
|
---|
| 7815 | : CTC_NAME_SIZE - 1;
|
---|
| 7816 | strncpy(cn->org, decoded->subjectO, CTC_NAME_SIZE);
|
---|
| 7817 | cn->org[sz] = 0;
|
---|
| 7818 | cn->orgEnc = decoded->subjectOEnc;
|
---|
| 7819 | }
|
---|
| 7820 | if (decoded->subjectOU) {
|
---|
| 7821 | sz = (decoded->subjectOULen < CTC_NAME_SIZE) ? decoded->subjectOULen
|
---|
| 7822 | : CTC_NAME_SIZE - 1;
|
---|
| 7823 | strncpy(cn->unit, decoded->subjectOU, CTC_NAME_SIZE);
|
---|
| 7824 | cn->unit[sz] = 0;
|
---|
| 7825 | cn->unitEnc = decoded->subjectOUEnc;
|
---|
| 7826 | }
|
---|
| 7827 | if (decoded->subjectSN) {
|
---|
| 7828 | sz = (decoded->subjectSNLen < CTC_NAME_SIZE) ? decoded->subjectSNLen
|
---|
| 7829 | : CTC_NAME_SIZE - 1;
|
---|
| 7830 | strncpy(cn->sur, decoded->subjectSN, CTC_NAME_SIZE);
|
---|
| 7831 | cn->sur[sz] = 0;
|
---|
| 7832 | cn->surEnc = decoded->subjectSNEnc;
|
---|
| 7833 | }
|
---|
| 7834 | if (decoded->subjectEmail) {
|
---|
| 7835 | sz = (decoded->subjectEmailLen < CTC_NAME_SIZE)
|
---|
| 7836 | ? decoded->subjectEmailLen : CTC_NAME_SIZE - 1;
|
---|
| 7837 | strncpy(cn->email, decoded->subjectEmail, CTC_NAME_SIZE);
|
---|
| 7838 | cn->email[sz] = 0;
|
---|
| 7839 | }
|
---|
| 7840 | }
|
---|
| 7841 |
|
---|
| 7842 | FreeDecodedCert(decoded);
|
---|
| 7843 |
|
---|
| 7844 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 7845 | XFREE(decoded, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 7846 | #endif
|
---|
| 7847 |
|
---|
| 7848 | return ret < 0 ? ret : 0;
|
---|
| 7849 | }
|
---|
| 7850 |
|
---|
| 7851 |
|
---|
| 7852 | #ifndef NO_FILESYSTEM
|
---|
| 7853 |
|
---|
| 7854 | /* Set cert issuer from issuerFile in PEM */
|
---|
| 7855 | int wc_SetIssuer(Cert* cert, const char* issuerFile)
|
---|
| 7856 | {
|
---|
| 7857 | int ret;
|
---|
| 7858 | int derSz;
|
---|
| 7859 | byte* der = (byte*)XMALLOC(EIGHTK_BUF, NULL, DYNAMIC_TYPE_CERT);
|
---|
| 7860 |
|
---|
| 7861 | if (der == NULL) {
|
---|
| 7862 | WOLFSSL_MSG("wc_SetIssuer OOF Problem");
|
---|
| 7863 | return MEMORY_E;
|
---|
| 7864 | }
|
---|
| 7865 | derSz = wolfSSL_PemCertToDer(issuerFile, der, EIGHTK_BUF);
|
---|
| 7866 | cert->selfSigned = 0;
|
---|
| 7867 | ret = SetNameFromCert(&cert->issuer, der, derSz);
|
---|
| 7868 | XFREE(der, NULL, DYNAMIC_TYPE_CERT);
|
---|
| 7869 |
|
---|
| 7870 | return ret;
|
---|
| 7871 | }
|
---|
| 7872 |
|
---|
| 7873 |
|
---|
| 7874 | /* Set cert subject from subjectFile in PEM */
|
---|
| 7875 | int wc_SetSubject(Cert* cert, const char* subjectFile)
|
---|
| 7876 | {
|
---|
| 7877 | int ret;
|
---|
| 7878 | int derSz;
|
---|
| 7879 | byte* der = (byte*)XMALLOC(EIGHTK_BUF, NULL, DYNAMIC_TYPE_CERT);
|
---|
| 7880 |
|
---|
| 7881 | if (der == NULL) {
|
---|
| 7882 | WOLFSSL_MSG("wc_SetSubject OOF Problem");
|
---|
| 7883 | return MEMORY_E;
|
---|
| 7884 | }
|
---|
| 7885 | derSz = wolfSSL_PemCertToDer(subjectFile, der, EIGHTK_BUF);
|
---|
| 7886 | ret = SetNameFromCert(&cert->subject, der, derSz);
|
---|
| 7887 | XFREE(der, NULL, DYNAMIC_TYPE_CERT);
|
---|
| 7888 |
|
---|
| 7889 | return ret;
|
---|
| 7890 | }
|
---|
| 7891 |
|
---|
| 7892 |
|
---|
| 7893 | #ifdef WOLFSSL_ALT_NAMES
|
---|
| 7894 |
|
---|
| 7895 | /* Set atl names from file in PEM */
|
---|
| 7896 | int wc_SetAltNames(Cert* cert, const char* file)
|
---|
| 7897 | {
|
---|
| 7898 | int ret;
|
---|
| 7899 | int derSz;
|
---|
| 7900 | byte* der = (byte*)XMALLOC(EIGHTK_BUF, NULL, DYNAMIC_TYPE_CERT);
|
---|
| 7901 |
|
---|
| 7902 | if (der == NULL) {
|
---|
| 7903 | WOLFSSL_MSG("wc_SetAltNames OOF Problem");
|
---|
| 7904 | return MEMORY_E;
|
---|
| 7905 | }
|
---|
| 7906 | derSz = wolfSSL_PemCertToDer(file, der, EIGHTK_BUF);
|
---|
| 7907 | ret = SetAltNamesFromCert(cert, der, derSz);
|
---|
| 7908 | XFREE(der, NULL, DYNAMIC_TYPE_CERT);
|
---|
| 7909 |
|
---|
| 7910 | return ret;
|
---|
| 7911 | }
|
---|
| 7912 |
|
---|
| 7913 | #endif /* WOLFSSL_ALT_NAMES */
|
---|
| 7914 |
|
---|
| 7915 | #endif /* NO_FILESYSTEM */
|
---|
| 7916 |
|
---|
| 7917 | /* Set cert issuer from DER buffer */
|
---|
| 7918 | int wc_SetIssuerBuffer(Cert* cert, const byte* der, int derSz)
|
---|
| 7919 | {
|
---|
| 7920 | cert->selfSigned = 0;
|
---|
| 7921 | return SetNameFromCert(&cert->issuer, der, derSz);
|
---|
| 7922 | }
|
---|
| 7923 |
|
---|
| 7924 |
|
---|
| 7925 | /* Set cert subject from DER buffer */
|
---|
| 7926 | int wc_SetSubjectBuffer(Cert* cert, const byte* der, int derSz)
|
---|
| 7927 | {
|
---|
| 7928 | return SetNameFromCert(&cert->subject, der, derSz);
|
---|
| 7929 | }
|
---|
| 7930 |
|
---|
| 7931 |
|
---|
| 7932 | #ifdef WOLFSSL_ALT_NAMES
|
---|
| 7933 |
|
---|
| 7934 | /* Set cert alt names from DER buffer */
|
---|
| 7935 | int wc_SetAltNamesBuffer(Cert* cert, const byte* der, int derSz)
|
---|
| 7936 | {
|
---|
| 7937 | return SetAltNamesFromCert(cert, der, derSz);
|
---|
| 7938 | }
|
---|
| 7939 |
|
---|
| 7940 | /* Set cert dates from DER buffer */
|
---|
| 7941 | int wc_SetDatesBuffer(Cert* cert, const byte* der, int derSz)
|
---|
| 7942 | {
|
---|
| 7943 | return SetDatesFromCert(cert, der, derSz);
|
---|
| 7944 | }
|
---|
| 7945 |
|
---|
| 7946 | #endif /* WOLFSSL_ALT_NAMES */
|
---|
| 7947 |
|
---|
| 7948 | #endif /* WOLFSSL_CERT_GEN */
|
---|
| 7949 |
|
---|
| 7950 |
|
---|
| 7951 | #ifdef HAVE_ECC
|
---|
| 7952 |
|
---|
| 7953 | /* Der Encode r & s ints into out, outLen is (in/out) size */
|
---|
| 7954 | int StoreECC_DSA_Sig(byte* out, word32* outLen, mp_int* r, mp_int* s)
|
---|
| 7955 | {
|
---|
| 7956 | word32 idx = 0;
|
---|
| 7957 | word32 rSz; /* encoding size */
|
---|
| 7958 | word32 sSz;
|
---|
| 7959 | word32 headerSz = 4; /* 2*ASN_TAG + 2*LEN(ENUM) */
|
---|
| 7960 |
|
---|
| 7961 | /* If the leading bit on the INTEGER is a 1, add a leading zero */
|
---|
| 7962 | int rLeadingZero = mp_leading_bit(r);
|
---|
| 7963 | int sLeadingZero = mp_leading_bit(s);
|
---|
| 7964 | int rLen = mp_unsigned_bin_size(r); /* big int size */
|
---|
| 7965 | int sLen = mp_unsigned_bin_size(s);
|
---|
| 7966 | int err;
|
---|
| 7967 |
|
---|
| 7968 | if (*outLen < (rLen + rLeadingZero + sLen + sLeadingZero +
|
---|
| 7969 | headerSz + 2)) /* SEQ_TAG + LEN(ENUM) */
|
---|
| 7970 | return BAD_FUNC_ARG;
|
---|
| 7971 |
|
---|
| 7972 | idx = SetSequence(rLen+rLeadingZero+sLen+sLeadingZero+headerSz, out);
|
---|
| 7973 |
|
---|
| 7974 | /* store r */
|
---|
| 7975 | out[idx++] = ASN_INTEGER;
|
---|
| 7976 | rSz = SetLength(rLen + rLeadingZero, &out[idx]);
|
---|
| 7977 | idx += rSz;
|
---|
| 7978 | if (rLeadingZero)
|
---|
| 7979 | out[idx++] = 0;
|
---|
| 7980 | err = mp_to_unsigned_bin(r, &out[idx]);
|
---|
| 7981 | if (err != MP_OKAY) return err;
|
---|
| 7982 | idx += rLen;
|
---|
| 7983 |
|
---|
| 7984 | /* store s */
|
---|
| 7985 | out[idx++] = ASN_INTEGER;
|
---|
| 7986 | sSz = SetLength(sLen + sLeadingZero, &out[idx]);
|
---|
| 7987 | idx += sSz;
|
---|
| 7988 | if (sLeadingZero)
|
---|
| 7989 | out[idx++] = 0;
|
---|
| 7990 | err = mp_to_unsigned_bin(s, &out[idx]);
|
---|
| 7991 | if (err != MP_OKAY) return err;
|
---|
| 7992 | idx += sLen;
|
---|
| 7993 |
|
---|
| 7994 | *outLen = idx;
|
---|
| 7995 |
|
---|
| 7996 | return 0;
|
---|
| 7997 | }
|
---|
| 7998 |
|
---|
| 7999 |
|
---|
| 8000 | /* Der Decode ECC-DSA Signautre, r & s stored as big ints */
|
---|
| 8001 | int DecodeECC_DSA_Sig(const byte* sig, word32 sigLen, mp_int* r, mp_int* s)
|
---|
| 8002 | {
|
---|
| 8003 | word32 idx = 0;
|
---|
| 8004 | int len = 0;
|
---|
| 8005 |
|
---|
| 8006 | if (GetSequence(sig, &idx, &len, sigLen) < 0)
|
---|
| 8007 | return ASN_ECC_KEY_E;
|
---|
| 8008 |
|
---|
| 8009 | if ((word32)len > (sigLen - idx))
|
---|
| 8010 | return ASN_ECC_KEY_E;
|
---|
| 8011 |
|
---|
| 8012 | if (GetInt(r, sig, &idx, sigLen) < 0)
|
---|
| 8013 | return ASN_ECC_KEY_E;
|
---|
| 8014 |
|
---|
| 8015 | if (GetInt(s, sig, &idx, sigLen) < 0)
|
---|
| 8016 | return ASN_ECC_KEY_E;
|
---|
| 8017 |
|
---|
| 8018 | return 0;
|
---|
| 8019 | }
|
---|
| 8020 |
|
---|
| 8021 |
|
---|
| 8022 | int wc_EccPrivateKeyDecode(const byte* input, word32* inOutIdx, ecc_key* key,
|
---|
| 8023 | word32 inSz)
|
---|
| 8024 | {
|
---|
| 8025 | word32 oid = 0;
|
---|
| 8026 | int version, length;
|
---|
| 8027 | int privSz, pubSz;
|
---|
| 8028 | byte b;
|
---|
| 8029 | int ret = 0;
|
---|
| 8030 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 8031 | byte* priv;
|
---|
| 8032 | byte* pub;
|
---|
| 8033 | #else
|
---|
| 8034 | byte priv[ECC_MAXSIZE+1];
|
---|
| 8035 | byte pub[2*(ECC_MAXSIZE+1)]; /* public key has two parts plus header */
|
---|
| 8036 | #endif
|
---|
| 8037 |
|
---|
| 8038 | if (input == NULL || inOutIdx == NULL || key == NULL || inSz == 0)
|
---|
| 8039 | return BAD_FUNC_ARG;
|
---|
| 8040 |
|
---|
| 8041 | if (GetSequence(input, inOutIdx, &length, inSz) < 0)
|
---|
| 8042 | return ASN_PARSE_E;
|
---|
| 8043 |
|
---|
| 8044 | if (GetMyVersion(input, inOutIdx, &version) < 0)
|
---|
| 8045 | return ASN_PARSE_E;
|
---|
| 8046 |
|
---|
| 8047 | b = input[*inOutIdx];
|
---|
| 8048 | *inOutIdx += 1;
|
---|
| 8049 |
|
---|
| 8050 | /* priv type */
|
---|
| 8051 | if (b != 4 && b != 6 && b != 7)
|
---|
| 8052 | return ASN_PARSE_E;
|
---|
| 8053 |
|
---|
| 8054 | if (GetLength(input, inOutIdx, &length, inSz) < 0)
|
---|
| 8055 | return ASN_PARSE_E;
|
---|
| 8056 |
|
---|
| 8057 | if (length > ECC_MAXSIZE)
|
---|
| 8058 | return BUFFER_E;
|
---|
| 8059 |
|
---|
| 8060 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 8061 | priv = (byte*)XMALLOC(ECC_MAXSIZE+1, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8062 | if (priv == NULL)
|
---|
| 8063 | return MEMORY_E;
|
---|
| 8064 |
|
---|
| 8065 | pub = (byte*)XMALLOC(2*(ECC_MAXSIZE+1), NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8066 | if (pub == NULL) {
|
---|
| 8067 | XFREE(priv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8068 | return MEMORY_E;
|
---|
| 8069 | }
|
---|
| 8070 | #endif
|
---|
| 8071 |
|
---|
| 8072 | /* priv key */
|
---|
| 8073 | privSz = length;
|
---|
| 8074 | XMEMCPY(priv, &input[*inOutIdx], privSz);
|
---|
| 8075 | *inOutIdx += length;
|
---|
| 8076 |
|
---|
| 8077 | /* prefix 0, may have */
|
---|
| 8078 | b = input[*inOutIdx];
|
---|
| 8079 | if (b == ECC_PREFIX_0) {
|
---|
| 8080 | *inOutIdx += 1;
|
---|
| 8081 |
|
---|
| 8082 | if (GetLength(input, inOutIdx, &length, inSz) < 0)
|
---|
| 8083 | ret = ASN_PARSE_E;
|
---|
| 8084 | else {
|
---|
| 8085 | /* object id */
|
---|
| 8086 | b = input[*inOutIdx];
|
---|
| 8087 | *inOutIdx += 1;
|
---|
| 8088 |
|
---|
| 8089 | if (b != ASN_OBJECT_ID) {
|
---|
| 8090 | ret = ASN_OBJECT_ID_E;
|
---|
| 8091 | }
|
---|
| 8092 | else if (GetLength(input, inOutIdx, &length, inSz) < 0) {
|
---|
| 8093 | ret = ASN_PARSE_E;
|
---|
| 8094 | }
|
---|
| 8095 | else {
|
---|
| 8096 | while(length--) {
|
---|
| 8097 | oid += input[*inOutIdx];
|
---|
| 8098 | *inOutIdx += 1;
|
---|
| 8099 | }
|
---|
| 8100 | if (CheckCurve(oid) < 0)
|
---|
| 8101 | ret = ECC_CURVE_OID_E;
|
---|
| 8102 | }
|
---|
| 8103 | }
|
---|
| 8104 | }
|
---|
| 8105 |
|
---|
| 8106 | if (ret == 0) {
|
---|
| 8107 | /* prefix 1 */
|
---|
| 8108 | b = input[*inOutIdx];
|
---|
| 8109 | *inOutIdx += 1;
|
---|
| 8110 |
|
---|
| 8111 | if (b != ECC_PREFIX_1) {
|
---|
| 8112 | ret = ASN_ECC_KEY_E;
|
---|
| 8113 | }
|
---|
| 8114 | else if (GetLength(input, inOutIdx, &length, inSz) < 0) {
|
---|
| 8115 | ret = ASN_PARSE_E;
|
---|
| 8116 | }
|
---|
| 8117 | else {
|
---|
| 8118 | /* key header */
|
---|
| 8119 | b = input[*inOutIdx];
|
---|
| 8120 | *inOutIdx += 1;
|
---|
| 8121 |
|
---|
| 8122 | if (b != ASN_BIT_STRING) {
|
---|
| 8123 | ret = ASN_BITSTR_E;
|
---|
| 8124 | }
|
---|
| 8125 | else if (GetLength(input, inOutIdx, &length, inSz) < 0) {
|
---|
| 8126 | ret = ASN_PARSE_E;
|
---|
| 8127 | }
|
---|
| 8128 | else if (length <= 0) {
|
---|
| 8129 | /* pubkey needs some size */
|
---|
| 8130 | ret = ASN_INPUT_E;
|
---|
| 8131 | }
|
---|
| 8132 | else {
|
---|
| 8133 | b = input[*inOutIdx];
|
---|
| 8134 | *inOutIdx += 1;
|
---|
| 8135 |
|
---|
| 8136 | if (b != 0x00) {
|
---|
| 8137 | ret = ASN_EXPECT_0_E;
|
---|
| 8138 | }
|
---|
| 8139 | else {
|
---|
| 8140 | /* pub key */
|
---|
| 8141 | pubSz = length - 1; /* null prefix */
|
---|
| 8142 | if (pubSz < 2*(ECC_MAXSIZE+1)) {
|
---|
| 8143 | XMEMCPY(pub, &input[*inOutIdx], pubSz);
|
---|
| 8144 | *inOutIdx += length;
|
---|
| 8145 | ret = wc_ecc_import_private_key(priv, privSz, pub, pubSz,
|
---|
| 8146 | key);
|
---|
| 8147 | } else
|
---|
| 8148 | ret = BUFFER_E;
|
---|
| 8149 | }
|
---|
| 8150 | }
|
---|
| 8151 | }
|
---|
| 8152 | }
|
---|
| 8153 |
|
---|
| 8154 | #ifdef WOLFSSL_SMALL_STACK
|
---|
| 8155 | XFREE(priv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8156 | XFREE(pub, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8157 | #endif
|
---|
| 8158 |
|
---|
| 8159 | return ret;
|
---|
| 8160 | }
|
---|
| 8161 |
|
---|
| 8162 | int wc_EccPublicKeyDecode(const byte* input, word32* inOutIdx,
|
---|
| 8163 | ecc_key* key, word32 inSz)
|
---|
| 8164 | {
|
---|
| 8165 | int length;
|
---|
| 8166 | int ret = 0;
|
---|
| 8167 |
|
---|
| 8168 | if (input == NULL || inOutIdx == NULL || key == NULL || inSz == 0)
|
---|
| 8169 | return BAD_FUNC_ARG;
|
---|
| 8170 |
|
---|
| 8171 | if (GetSequence(input, inOutIdx, &length, inSz) < 0)
|
---|
| 8172 | return ASN_PARSE_E;
|
---|
| 8173 |
|
---|
| 8174 | #if defined(OPENSSL_EXTRA) || defined(ECC_DECODE_EXTRA)
|
---|
| 8175 | {
|
---|
| 8176 | byte b = input[*inOutIdx];
|
---|
| 8177 | if (b != ASN_INTEGER) {
|
---|
| 8178 | /* not from decoded cert, will have algo id, skip past */
|
---|
| 8179 | if (GetSequence(input, inOutIdx, &length, inSz) < 0)
|
---|
| 8180 | return ASN_PARSE_E;
|
---|
| 8181 |
|
---|
| 8182 | b = input[(*inOutIdx)++];
|
---|
| 8183 | if (b != ASN_OBJECT_ID)
|
---|
| 8184 | return ASN_OBJECT_ID_E;
|
---|
| 8185 |
|
---|
| 8186 | if (GetLength(input, inOutIdx, &length, inSz) < 0)
|
---|
| 8187 | return ASN_PARSE_E;
|
---|
| 8188 |
|
---|
| 8189 | *inOutIdx += length; /* skip past */
|
---|
| 8190 |
|
---|
| 8191 | /* ecc params information */
|
---|
| 8192 | b = input[(*inOutIdx)++];
|
---|
| 8193 | if (b != ASN_OBJECT_ID)
|
---|
| 8194 | return ASN_OBJECT_ID_E;
|
---|
| 8195 |
|
---|
| 8196 | if (GetLength(input, inOutIdx, &length, inSz) < 0)
|
---|
| 8197 | return ASN_PARSE_E;
|
---|
| 8198 |
|
---|
| 8199 | *inOutIdx += length; /* skip past */
|
---|
| 8200 |
|
---|
| 8201 | /* key header */
|
---|
| 8202 | b = input[*inOutIdx];
|
---|
| 8203 | *inOutIdx += 1;
|
---|
| 8204 |
|
---|
| 8205 | if (b != ASN_BIT_STRING)
|
---|
| 8206 | ret = ASN_BITSTR_E;
|
---|
| 8207 | else if (GetLength(input, inOutIdx, &length, inSz) < 0)
|
---|
| 8208 | ret = ASN_PARSE_E;
|
---|
| 8209 | else {
|
---|
| 8210 | b = input[*inOutIdx];
|
---|
| 8211 | *inOutIdx += 1;
|
---|
| 8212 |
|
---|
| 8213 | if (b != 0x00)
|
---|
| 8214 | ret = ASN_EXPECT_0_E;
|
---|
| 8215 | }
|
---|
| 8216 | }
|
---|
| 8217 | } /* openssl var block */
|
---|
| 8218 | #endif /* OPENSSL_EXTRA */
|
---|
| 8219 |
|
---|
| 8220 | if (wc_ecc_import_x963(input+*inOutIdx, inSz - *inOutIdx, key) != 0)
|
---|
| 8221 | return ASN_ECC_KEY_E;
|
---|
| 8222 |
|
---|
| 8223 | return ret;
|
---|
| 8224 | }
|
---|
| 8225 |
|
---|
| 8226 |
|
---|
| 8227 | #ifdef WOLFSSL_KEY_GEN
|
---|
| 8228 |
|
---|
| 8229 | /* Write a Private ecc key to DER format, length on success else < 0 */
|
---|
| 8230 | int wc_EccKeyToDer(ecc_key* key, byte* output, word32 inLen)
|
---|
| 8231 | {
|
---|
| 8232 | byte curve[MAX_ALGO_SZ+2];
|
---|
| 8233 | byte ver[MAX_VERSION_SZ];
|
---|
| 8234 | byte seq[MAX_SEQ_SZ];
|
---|
| 8235 | byte *prv, *pub;
|
---|
| 8236 | int ret, totalSz, curveSz, verSz;
|
---|
| 8237 | int privHdrSz = ASN_ECC_HEADER_SZ;
|
---|
| 8238 | int pubHdrSz = ASN_ECC_CONTEXT_SZ + ASN_ECC_HEADER_SZ;
|
---|
| 8239 |
|
---|
| 8240 | word32 idx = 0, prvidx = 0, pubidx = 0, curveidx = 0;
|
---|
| 8241 | word32 seqSz, privSz, pubSz = ECC_BUFSIZE;
|
---|
| 8242 |
|
---|
| 8243 | if (key == NULL || output == NULL || inLen == 0)
|
---|
| 8244 | return BAD_FUNC_ARG;
|
---|
| 8245 |
|
---|
| 8246 | /* curve */
|
---|
| 8247 | curve[curveidx++] = ECC_PREFIX_0;
|
---|
| 8248 | curveidx++ /* to put the size after computation */;
|
---|
| 8249 | curveSz = SetCurve(key, curve+curveidx);
|
---|
| 8250 | if (curveSz < 0)
|
---|
| 8251 | return curveSz;
|
---|
| 8252 | /* set computed size */
|
---|
| 8253 | curve[1] = (byte)curveSz;
|
---|
| 8254 | curveidx += curveSz;
|
---|
| 8255 |
|
---|
| 8256 | /* private */
|
---|
| 8257 | privSz = key->dp->size;
|
---|
| 8258 | prv = (byte*)XMALLOC(privSz + privHdrSz + MAX_SEQ_SZ,
|
---|
| 8259 | NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8260 | if (prv == NULL) {
|
---|
| 8261 | return MEMORY_E;
|
---|
| 8262 | }
|
---|
| 8263 | prv[prvidx++] = ASN_OCTET_STRING;
|
---|
| 8264 | prv[prvidx++] = (byte)key->dp->size;
|
---|
| 8265 | ret = wc_ecc_export_private_only(key, prv + prvidx, &privSz);
|
---|
| 8266 | if (ret < 0) {
|
---|
| 8267 | XFREE(prv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8268 | return ret;
|
---|
| 8269 | }
|
---|
| 8270 | prvidx += privSz;
|
---|
| 8271 |
|
---|
| 8272 | /* public */
|
---|
| 8273 | ret = wc_ecc_export_x963(key, NULL, &pubSz);
|
---|
| 8274 | if (ret != LENGTH_ONLY_E) {
|
---|
| 8275 | XFREE(prv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8276 | return ret;
|
---|
| 8277 | }
|
---|
| 8278 |
|
---|
| 8279 | pub = (byte*)XMALLOC(pubSz + pubHdrSz + MAX_SEQ_SZ,
|
---|
| 8280 | NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8281 | if (pub == NULL) {
|
---|
| 8282 | XFREE(prv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8283 | return MEMORY_E;
|
---|
| 8284 | }
|
---|
| 8285 |
|
---|
| 8286 | pub[pubidx++] = ECC_PREFIX_1;
|
---|
| 8287 | if (pubSz > 128) /* leading zero + extra size byte */
|
---|
| 8288 | pubidx += SetLength(pubSz + ASN_ECC_CONTEXT_SZ + 2, pub+pubidx);
|
---|
| 8289 | else /* leading zero */
|
---|
| 8290 | pubidx += SetLength(pubSz + ASN_ECC_CONTEXT_SZ + 1, pub+pubidx);
|
---|
| 8291 | pub[pubidx++] = ASN_BIT_STRING;
|
---|
| 8292 | pubidx += SetLength(pubSz + 1, pub+pubidx);
|
---|
| 8293 | pub[pubidx++] = (byte)0; /* leading zero */
|
---|
| 8294 | ret = wc_ecc_export_x963(key, pub + pubidx, &pubSz);
|
---|
| 8295 | if (ret != 0) {
|
---|
| 8296 | XFREE(prv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8297 | XFREE(pub, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8298 | return ret;
|
---|
| 8299 | }
|
---|
| 8300 | pubidx += pubSz;
|
---|
| 8301 |
|
---|
| 8302 | /* make headers */
|
---|
| 8303 | verSz = SetMyVersion(1, ver, FALSE);
|
---|
| 8304 | seqSz = SetSequence(verSz + prvidx + pubidx + curveidx, seq);
|
---|
| 8305 |
|
---|
| 8306 | totalSz = prvidx + pubidx + curveidx + verSz + seqSz;
|
---|
| 8307 | if (totalSz > (int)inLen) {
|
---|
| 8308 | XFREE(prv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8309 | XFREE(pub, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8310 | return BAD_FUNC_ARG;
|
---|
| 8311 | }
|
---|
| 8312 |
|
---|
| 8313 | /* write out */
|
---|
| 8314 | /* seq */
|
---|
| 8315 | XMEMCPY(output + idx, seq, seqSz);
|
---|
| 8316 | idx = seqSz;
|
---|
| 8317 |
|
---|
| 8318 | /* ver */
|
---|
| 8319 | XMEMCPY(output + idx, ver, verSz);
|
---|
| 8320 | idx += verSz;
|
---|
| 8321 |
|
---|
| 8322 | /* private */
|
---|
| 8323 | XMEMCPY(output + idx, prv, prvidx);
|
---|
| 8324 | idx += prvidx;
|
---|
| 8325 | XFREE(prv, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8326 |
|
---|
| 8327 | /* curve */
|
---|
| 8328 | XMEMCPY(output + idx, curve, curveidx);
|
---|
| 8329 | idx += curveidx;
|
---|
| 8330 |
|
---|
| 8331 | /* public */
|
---|
| 8332 | XMEMCPY(output + idx, pub, pubidx);
|
---|
| 8333 | /* idx += pubidx; not used after write, if more data remove comment */
|
---|
| 8334 | XFREE(pub, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 8335 |
|
---|
| 8336 | return totalSz;
|
---|
| 8337 | }
|
---|
| 8338 |
|
---|
| 8339 | #endif /* WOLFSSL_KEY_GEN */
|
---|
| 8340 |
|
---|
| 8341 | #endif /* HAVE_ECC */
|
---|
| 8342 |
|
---|
| 8343 |
|
---|
| 8344 | #if defined(HAVE_OCSP) || defined(HAVE_CRL)
|
---|
| 8345 |
|
---|
| 8346 | /* Get raw Date only, no processing, 0 on success */
|
---|
| 8347 | static int GetBasicDate(const byte* source, word32* idx, byte* date,
|
---|
| 8348 | byte* format, int maxIdx)
|
---|
| 8349 | {
|
---|
| 8350 | int length;
|
---|
| 8351 |
|
---|
| 8352 | WOLFSSL_ENTER("GetBasicDate");
|
---|
| 8353 |
|
---|
| 8354 | *format = source[*idx];
|
---|
| 8355 | *idx += 1;
|
---|
| 8356 | if (*format != ASN_UTC_TIME && *format != ASN_GENERALIZED_TIME)
|
---|
| 8357 | return ASN_TIME_E;
|
---|
| 8358 |
|
---|
| 8359 | if (GetLength(source, idx, &length, maxIdx) < 0)
|
---|
| 8360 | return ASN_PARSE_E;
|
---|
| 8361 |
|
---|
| 8362 | if (length > MAX_DATE_SIZE || length < MIN_DATE_SIZE)
|
---|
| 8363 | return ASN_DATE_SZ_E;
|
---|
| 8364 |
|
---|
| 8365 | XMEMCPY(date, &source[*idx], length);
|
---|
| 8366 | *idx += length;
|
---|
| 8367 |
|
---|
| 8368 | return 0;
|
---|
| 8369 | }
|
---|
| 8370 |
|
---|
| 8371 | #endif
|
---|
| 8372 |
|
---|
| 8373 |
|
---|
| 8374 | #ifdef HAVE_OCSP
|
---|
| 8375 |
|
---|
| 8376 | static int GetEnumerated(const byte* input, word32* inOutIdx, int *value)
|
---|
| 8377 | {
|
---|
| 8378 | word32 idx = *inOutIdx;
|
---|
| 8379 | word32 len;
|
---|
| 8380 |
|
---|
| 8381 | WOLFSSL_ENTER("GetEnumerated");
|
---|
| 8382 |
|
---|
| 8383 | *value = 0;
|
---|
| 8384 |
|
---|
| 8385 | if (input[idx++] != ASN_ENUMERATED)
|
---|
| 8386 | return ASN_PARSE_E;
|
---|
| 8387 |
|
---|
| 8388 | len = input[idx++];
|
---|
| 8389 | if (len > 4)
|
---|
| 8390 | return ASN_PARSE_E;
|
---|
| 8391 |
|
---|
| 8392 | while (len--) {
|
---|
| 8393 | *value = *value << 8 | input[idx++];
|
---|
| 8394 | }
|
---|
| 8395 |
|
---|
| 8396 | *inOutIdx = idx;
|
---|
| 8397 |
|
---|
| 8398 | return *value;
|
---|
| 8399 | }
|
---|
| 8400 |
|
---|
| 8401 |
|
---|
| 8402 | static int DecodeSingleResponse(byte* source,
|
---|
| 8403 | word32* ioIndex, OcspResponse* resp, word32 size)
|
---|
| 8404 | {
|
---|
| 8405 | word32 idx = *ioIndex, prevIndex, oid;
|
---|
| 8406 | int length, wrapperSz;
|
---|
| 8407 | CertStatus* cs = resp->status;
|
---|
| 8408 |
|
---|
| 8409 | WOLFSSL_ENTER("DecodeSingleResponse");
|
---|
| 8410 |
|
---|
| 8411 | /* Outer wrapper of the SEQUENCE OF Single Responses. */
|
---|
| 8412 | if (GetSequence(source, &idx, &wrapperSz, size) < 0)
|
---|
| 8413 | return ASN_PARSE_E;
|
---|
| 8414 |
|
---|
| 8415 | prevIndex = idx;
|
---|
| 8416 |
|
---|
| 8417 | /* When making a request, we only request one status on one certificate
|
---|
| 8418 | * at a time. There should only be one SingleResponse */
|
---|
| 8419 |
|
---|
| 8420 | /* Wrapper around the Single Response */
|
---|
| 8421 | if (GetSequence(source, &idx, &length, size) < 0)
|
---|
| 8422 | return ASN_PARSE_E;
|
---|
| 8423 |
|
---|
| 8424 | /* Wrapper around the CertID */
|
---|
| 8425 | if (GetSequence(source, &idx, &length, size) < 0)
|
---|
| 8426 | return ASN_PARSE_E;
|
---|
| 8427 | /* Skip the hash algorithm */
|
---|
| 8428 | if (GetAlgoId(source, &idx, &oid, size) < 0)
|
---|
| 8429 | return ASN_PARSE_E;
|
---|
| 8430 | /* Save reference to the hash of CN */
|
---|
| 8431 | if (source[idx++] != ASN_OCTET_STRING)
|
---|
| 8432 | return ASN_PARSE_E;
|
---|
| 8433 | if (GetLength(source, &idx, &length, size) < 0)
|
---|
| 8434 | return ASN_PARSE_E;
|
---|
| 8435 | resp->issuerHash = source + idx;
|
---|
| 8436 | idx += length;
|
---|
| 8437 | /* Save reference to the hash of the issuer public key */
|
---|
| 8438 | if (source[idx++] != ASN_OCTET_STRING)
|
---|
| 8439 | return ASN_PARSE_E;
|
---|
| 8440 | if (GetLength(source, &idx, &length, size) < 0)
|
---|
| 8441 | return ASN_PARSE_E;
|
---|
| 8442 | resp->issuerKeyHash = source + idx;
|
---|
| 8443 | idx += length;
|
---|
| 8444 |
|
---|
| 8445 | /* Read the serial number, it is handled as a string, not as a
|
---|
| 8446 | * proper number. Just XMEMCPY the data over, rather than load it
|
---|
| 8447 | * as an mp_int. */
|
---|
| 8448 | if (source[idx++] != ASN_INTEGER)
|
---|
| 8449 | return ASN_PARSE_E;
|
---|
| 8450 | if (GetLength(source, &idx, &length, size) < 0)
|
---|
| 8451 | return ASN_PARSE_E;
|
---|
| 8452 | if (length <= EXTERNAL_SERIAL_SIZE)
|
---|
| 8453 | {
|
---|
| 8454 | if (source[idx] == 0)
|
---|
| 8455 | {
|
---|
| 8456 | idx++;
|
---|
| 8457 | length--;
|
---|
| 8458 | }
|
---|
| 8459 | XMEMCPY(cs->serial, source + idx, length);
|
---|
| 8460 | cs->serialSz = length;
|
---|
| 8461 | }
|
---|
| 8462 | else
|
---|
| 8463 | {
|
---|
| 8464 | return ASN_GETINT_E;
|
---|
| 8465 | }
|
---|
| 8466 | idx += length;
|
---|
| 8467 |
|
---|
| 8468 | /* CertStatus */
|
---|
| 8469 | switch (source[idx++])
|
---|
| 8470 | {
|
---|
| 8471 | case (ASN_CONTEXT_SPECIFIC | CERT_GOOD):
|
---|
| 8472 | cs->status = CERT_GOOD;
|
---|
| 8473 | idx++;
|
---|
| 8474 | break;
|
---|
| 8475 | case (ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED | CERT_REVOKED):
|
---|
| 8476 | cs->status = CERT_REVOKED;
|
---|
| 8477 | if (GetLength(source, &idx, &length, size) < 0)
|
---|
| 8478 | return ASN_PARSE_E;
|
---|
| 8479 | idx += length;
|
---|
| 8480 | break;
|
---|
| 8481 | case (ASN_CONTEXT_SPECIFIC | CERT_UNKNOWN):
|
---|
| 8482 | cs->status = CERT_UNKNOWN;
|
---|
| 8483 | idx++;
|
---|
| 8484 | break;
|
---|
| 8485 | default:
|
---|
| 8486 | return ASN_PARSE_E;
|
---|
| 8487 | }
|
---|
| 8488 |
|
---|
| 8489 | if (GetBasicDate(source, &idx, cs->thisDate,
|
---|
| 8490 | &cs->thisDateFormat, size) < 0)
|
---|
| 8491 | return ASN_PARSE_E;
|
---|
| 8492 | if (!XVALIDATE_DATE(cs->thisDate, cs->thisDateFormat, BEFORE))
|
---|
| 8493 | return ASN_BEFORE_DATE_E;
|
---|
| 8494 |
|
---|
| 8495 | /* The following items are optional. Only check for them if there is more
|
---|
| 8496 | * unprocessed data in the singleResponse wrapper. */
|
---|
| 8497 |
|
---|
| 8498 | if (((int)(idx - prevIndex) < wrapperSz) &&
|
---|
| 8499 | (source[idx] == (ASN_CONSTRUCTED | ASN_CONTEXT_SPECIFIC | 0)))
|
---|
| 8500 | {
|
---|
| 8501 | idx++;
|
---|
| 8502 | if (GetLength(source, &idx, &length, size) < 0)
|
---|
| 8503 | return ASN_PARSE_E;
|
---|
| 8504 | if (GetBasicDate(source, &idx, cs->nextDate,
|
---|
| 8505 | &cs->nextDateFormat, size) < 0)
|
---|
| 8506 | return ASN_PARSE_E;
|
---|
| 8507 | }
|
---|
| 8508 | if (((int)(idx - prevIndex) < wrapperSz) &&
|
---|
| 8509 | (source[idx] == (ASN_CONSTRUCTED | ASN_CONTEXT_SPECIFIC | 1)))
|
---|
| 8510 | {
|
---|
| 8511 | idx++;
|
---|
| 8512 | if (GetLength(source, &idx, &length, size) < 0)
|
---|
| 8513 | return ASN_PARSE_E;
|
---|
| 8514 | idx += length;
|
---|
| 8515 | }
|
---|
| 8516 |
|
---|
| 8517 | *ioIndex = idx;
|
---|
| 8518 |
|
---|
| 8519 | return 0;
|
---|
| 8520 | }
|
---|
| 8521 |
|
---|
| 8522 | static int DecodeOcspRespExtensions(byte* source,
|
---|
| 8523 | word32* ioIndex, OcspResponse* resp, word32 sz)
|
---|
| 8524 | {
|
---|
| 8525 | word32 idx = *ioIndex;
|
---|
| 8526 | int length;
|
---|
| 8527 | int ext_bound; /* boundary index for the sequence of extensions */
|
---|
| 8528 | word32 oid;
|
---|
| 8529 |
|
---|
| 8530 | WOLFSSL_ENTER("DecodeOcspRespExtensions");
|
---|
| 8531 |
|
---|
| 8532 | if (source[idx++] != (ASN_CONSTRUCTED | ASN_CONTEXT_SPECIFIC | 1))
|
---|
| 8533 | return ASN_PARSE_E;
|
---|
| 8534 |
|
---|
| 8535 | if (GetLength(source, &idx, &length, sz) < 0) return ASN_PARSE_E;
|
---|
| 8536 |
|
---|
| 8537 | if (GetSequence(source, &idx, &length, sz) < 0) return ASN_PARSE_E;
|
---|
| 8538 |
|
---|
| 8539 | ext_bound = idx + length;
|
---|
| 8540 |
|
---|
| 8541 | while (idx < (word32)ext_bound) {
|
---|
| 8542 | if (GetSequence(source, &idx, &length, sz) < 0) {
|
---|
| 8543 | WOLFSSL_MSG("\tfail: should be a SEQUENCE");
|
---|
| 8544 | return ASN_PARSE_E;
|
---|
| 8545 | }
|
---|
| 8546 |
|
---|
| 8547 | oid = 0;
|
---|
| 8548 | if (GetObjectId(source, &idx, &oid, sz) < 0) {
|
---|
| 8549 | WOLFSSL_MSG("\tfail: OBJECT ID");
|
---|
| 8550 | return ASN_PARSE_E;
|
---|
| 8551 | }
|
---|
| 8552 |
|
---|
| 8553 | /* check for critical flag */
|
---|
| 8554 | if (source[idx] == ASN_BOOLEAN) {
|
---|
| 8555 | WOLFSSL_MSG("\tfound optional critical flag, moving past");
|
---|
| 8556 | idx += (ASN_BOOL_SIZE + 1);
|
---|
| 8557 | }
|
---|
| 8558 |
|
---|
| 8559 | /* process the extension based on the OID */
|
---|
| 8560 | if (source[idx++] != ASN_OCTET_STRING) {
|
---|
| 8561 | WOLFSSL_MSG("\tfail: should be an OCTET STRING");
|
---|
| 8562 | return ASN_PARSE_E;
|
---|
| 8563 | }
|
---|
| 8564 |
|
---|
| 8565 | if (GetLength(source, &idx, &length, sz) < 0) {
|
---|
| 8566 | WOLFSSL_MSG("\tfail: extension data length");
|
---|
| 8567 | return ASN_PARSE_E;
|
---|
| 8568 | }
|
---|
| 8569 |
|
---|
| 8570 | if (oid == OCSP_NONCE_OID) {
|
---|
| 8571 | resp->nonce = source + idx;
|
---|
| 8572 | resp->nonceSz = length;
|
---|
| 8573 | }
|
---|
| 8574 |
|
---|
| 8575 | idx += length;
|
---|
| 8576 | }
|
---|
| 8577 |
|
---|
| 8578 | *ioIndex = idx;
|
---|
| 8579 | return 0;
|
---|
| 8580 | }
|
---|
| 8581 |
|
---|
| 8582 |
|
---|
| 8583 | static int DecodeResponseData(byte* source,
|
---|
| 8584 | word32* ioIndex, OcspResponse* resp, word32 size)
|
---|
| 8585 | {
|
---|
| 8586 | word32 idx = *ioIndex, prev_idx;
|
---|
| 8587 | int length;
|
---|
| 8588 | int version;
|
---|
| 8589 | word32 responderId = 0;
|
---|
| 8590 |
|
---|
| 8591 | WOLFSSL_ENTER("DecodeResponseData");
|
---|
| 8592 |
|
---|
| 8593 | resp->response = source + idx;
|
---|
| 8594 | prev_idx = idx;
|
---|
| 8595 | if (GetSequence(source, &idx, &length, size) < 0)
|
---|
| 8596 | return ASN_PARSE_E;
|
---|
| 8597 | resp->responseSz = length + idx - prev_idx;
|
---|
| 8598 |
|
---|
| 8599 | /* Get version. It is an EXPLICIT[0] DEFAULT(0) value. If this
|
---|
| 8600 | * item isn't an EXPLICIT[0], then set version to zero and move
|
---|
| 8601 | * onto the next item.
|
---|
| 8602 | */
|
---|
| 8603 | if (source[idx] == (ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED))
|
---|
| 8604 | {
|
---|
| 8605 | idx += 2; /* Eat the value and length */
|
---|
| 8606 | if (GetMyVersion(source, &idx, &version) < 0)
|
---|
| 8607 | return ASN_PARSE_E;
|
---|
| 8608 | } else
|
---|
| 8609 | version = 0;
|
---|
| 8610 |
|
---|
| 8611 | responderId = source[idx++];
|
---|
| 8612 | if ((responderId == (ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED | 1)) ||
|
---|
| 8613 | (responderId == (ASN_CONTEXT_SPECIFIC | ASN_CONSTRUCTED | 2)))
|
---|
| 8614 | {
|
---|
| 8615 | if (GetLength(source, &idx, &length, size) < 0)
|
---|
| 8616 | return ASN_PARSE_E;
|
---|
| 8617 | idx += length;
|
---|
| 8618 | }
|
---|
| 8619 | else
|
---|
| 8620 | return ASN_PARSE_E;
|
---|
| 8621 |
|
---|
| 8622 | /* save pointer to the producedAt time */
|
---|
| 8623 | if (GetBasicDate(source, &idx, resp->producedDate,
|
---|
| 8624 | &resp->producedDateFormat, size) < 0)
|
---|
| 8625 | return ASN_PARSE_E;
|
---|
| 8626 |
|
---|
| 8627 | if (DecodeSingleResponse(source, &idx, resp, size) < 0)
|
---|
| 8628 | return ASN_PARSE_E;
|
---|
| 8629 |
|
---|
| 8630 | if (DecodeOcspRespExtensions(source, &idx, resp, size) < 0)
|
---|
| 8631 | return ASN_PARSE_E;
|
---|
| 8632 |
|
---|
| 8633 | *ioIndex = idx;
|
---|
| 8634 | return 0;
|
---|
| 8635 | }
|
---|
| 8636 |
|
---|
| 8637 |
|
---|
| 8638 | static int DecodeCerts(byte* source,
|
---|
| 8639 | word32* ioIndex, OcspResponse* resp, word32 size)
|
---|
| 8640 | {
|
---|
| 8641 | word32 idx = *ioIndex;
|
---|
| 8642 |
|
---|
| 8643 | WOLFSSL_ENTER("DecodeCerts");
|
---|
| 8644 |
|
---|
| 8645 | if (source[idx++] == (ASN_CONSTRUCTED | ASN_CONTEXT_SPECIFIC))
|
---|
| 8646 | {
|
---|
| 8647 | int length;
|
---|
| 8648 |
|
---|
| 8649 | if (GetLength(source, &idx, &length, size) < 0)
|
---|
| 8650 | return ASN_PARSE_E;
|
---|
| 8651 |
|
---|
| 8652 | if (GetSequence(source, &idx, &length, size) < 0)
|
---|
| 8653 | return ASN_PARSE_E;
|
---|
| 8654 |
|
---|
| 8655 | resp->cert = source + idx;
|
---|
| 8656 | resp->certSz = length;
|
---|
| 8657 |
|
---|
| 8658 | idx += length;
|
---|
| 8659 | }
|
---|
| 8660 | *ioIndex = idx;
|
---|
| 8661 | return 0;
|
---|
| 8662 | }
|
---|
| 8663 |
|
---|
| 8664 | static int DecodeBasicOcspResponse(byte* source,
|
---|
| 8665 | word32* ioIndex, OcspResponse* resp, word32 size)
|
---|
| 8666 | {
|
---|
| 8667 | int length;
|
---|
| 8668 | word32 idx = *ioIndex;
|
---|
| 8669 | word32 end_index;
|
---|
| 8670 |
|
---|
| 8671 | WOLFSSL_ENTER("DecodeBasicOcspResponse");
|
---|
| 8672 |
|
---|
| 8673 | if (GetSequence(source, &idx, &length, size) < 0)
|
---|
| 8674 | return ASN_PARSE_E;
|
---|
| 8675 |
|
---|
| 8676 | if (idx + length > size)
|
---|
| 8677 | return ASN_INPUT_E;
|
---|
| 8678 | end_index = idx + length;
|
---|
| 8679 |
|
---|
| 8680 | if (DecodeResponseData(source, &idx, resp, size) < 0)
|
---|
| 8681 | return ASN_PARSE_E;
|
---|
| 8682 |
|
---|
| 8683 | /* Get the signature algorithm */
|
---|
| 8684 | if (GetAlgoId(source, &idx, &resp->sigOID, size) < 0)
|
---|
| 8685 | return ASN_PARSE_E;
|
---|
| 8686 |
|
---|
| 8687 | /* Obtain pointer to the start of the signature, and save the size */
|
---|
| 8688 | if (source[idx++] == ASN_BIT_STRING)
|
---|
| 8689 | {
|
---|
| 8690 | int sigLength = 0;
|
---|
| 8691 | if (GetLength(source, &idx, &sigLength, size) < 0)
|
---|
| 8692 | return ASN_PARSE_E;
|
---|
| 8693 | resp->sigSz = sigLength;
|
---|
| 8694 | resp->sig = source + idx;
|
---|
| 8695 | idx += sigLength;
|
---|
| 8696 | }
|
---|
| 8697 |
|
---|
| 8698 | /*
|
---|
| 8699 | * Check the length of the BasicOcspResponse against the current index to
|
---|
| 8700 | * see if there are certificates, they are optional.
|
---|
| 8701 | */
|
---|
| 8702 | if (idx < end_index)
|
---|
| 8703 | {
|
---|
| 8704 | DecodedCert cert;
|
---|
| 8705 | int ret;
|
---|
| 8706 |
|
---|
| 8707 | if (DecodeCerts(source, &idx, resp, size) < 0)
|
---|
| 8708 | return ASN_PARSE_E;
|
---|
| 8709 |
|
---|
| 8710 | InitDecodedCert(&cert, resp->cert, resp->certSz, 0);
|
---|
| 8711 | ret = ParseCertRelative(&cert, CA_TYPE, NO_VERIFY, 0);
|
---|
| 8712 | if (ret < 0)
|
---|
| 8713 | return ret;
|
---|
| 8714 |
|
---|
| 8715 | ret = ConfirmSignature(resp->response, resp->responseSz,
|
---|
| 8716 | cert.publicKey, cert.pubKeySize, cert.keyOID,
|
---|
| 8717 | resp->sig, resp->sigSz, resp->sigOID, NULL);
|
---|
| 8718 | FreeDecodedCert(&cert);
|
---|
| 8719 |
|
---|
| 8720 | if (ret == 0)
|
---|
| 8721 | {
|
---|
| 8722 | WOLFSSL_MSG("\tOCSP Confirm signature failed");
|
---|
| 8723 | return ASN_OCSP_CONFIRM_E;
|
---|
| 8724 | }
|
---|
| 8725 | }
|
---|
| 8726 |
|
---|
| 8727 | *ioIndex = idx;
|
---|
| 8728 | return 0;
|
---|
| 8729 | }
|
---|
| 8730 |
|
---|
| 8731 |
|
---|
| 8732 | void InitOcspResponse(OcspResponse* resp, CertStatus* status,
|
---|
| 8733 | byte* source, word32 inSz)
|
---|
| 8734 | {
|
---|
| 8735 | WOLFSSL_ENTER("InitOcspResponse");
|
---|
| 8736 |
|
---|
| 8737 | resp->responseStatus = -1;
|
---|
| 8738 | resp->response = NULL;
|
---|
| 8739 | resp->responseSz = 0;
|
---|
| 8740 | resp->producedDateFormat = 0;
|
---|
| 8741 | resp->issuerHash = NULL;
|
---|
| 8742 | resp->issuerKeyHash = NULL;
|
---|
| 8743 | resp->sig = NULL;
|
---|
| 8744 | resp->sigSz = 0;
|
---|
| 8745 | resp->sigOID = 0;
|
---|
| 8746 | resp->status = status;
|
---|
| 8747 | resp->nonce = NULL;
|
---|
| 8748 | resp->nonceSz = 0;
|
---|
| 8749 | resp->source = source;
|
---|
| 8750 | resp->maxIdx = inSz;
|
---|
| 8751 | }
|
---|
| 8752 |
|
---|
| 8753 |
|
---|
| 8754 | int OcspResponseDecode(OcspResponse* resp)
|
---|
| 8755 | {
|
---|
| 8756 | int length = 0;
|
---|
| 8757 | word32 idx = 0;
|
---|
| 8758 | byte* source = resp->source;
|
---|
| 8759 | word32 size = resp->maxIdx;
|
---|
| 8760 | word32 oid;
|
---|
| 8761 |
|
---|
| 8762 | WOLFSSL_ENTER("OcspResponseDecode");
|
---|
| 8763 |
|
---|
| 8764 | /* peel the outer SEQUENCE wrapper */
|
---|
| 8765 | if (GetSequence(source, &idx, &length, size) < 0)
|
---|
| 8766 | return ASN_PARSE_E;
|
---|
| 8767 |
|
---|
| 8768 | /* First get the responseStatus, an ENUMERATED */
|
---|
| 8769 | if (GetEnumerated(source, &idx, &resp->responseStatus) < 0)
|
---|
| 8770 | return ASN_PARSE_E;
|
---|
| 8771 |
|
---|
| 8772 | if (resp->responseStatus != OCSP_SUCCESSFUL)
|
---|
| 8773 | return 0;
|
---|
| 8774 |
|
---|
| 8775 | /* Next is an EXPLICIT record called ResponseBytes, OPTIONAL */
|
---|
| 8776 | if (idx >= size)
|
---|
| 8777 | return ASN_INPUT_E;
|
---|
| 8778 | if (source[idx++] != (ASN_CONSTRUCTED | ASN_CONTEXT_SPECIFIC))
|
---|
| 8779 | return ASN_PARSE_E;
|
---|
| 8780 | if (GetLength(source, &idx, &length, size) < 0)
|
---|
| 8781 | return ASN_PARSE_E;
|
---|
| 8782 |
|
---|
| 8783 | /* Get the responseBytes SEQUENCE */
|
---|
| 8784 | if (GetSequence(source, &idx, &length, size) < 0)
|
---|
| 8785 | return ASN_PARSE_E;
|
---|
| 8786 |
|
---|
| 8787 | /* Check ObjectID for the resposeBytes */
|
---|
| 8788 | if (GetObjectId(source, &idx, &oid, size) < 0)
|
---|
| 8789 | return ASN_PARSE_E;
|
---|
| 8790 | if (oid != OCSP_BASIC_OID)
|
---|
| 8791 | return ASN_PARSE_E;
|
---|
| 8792 | if (source[idx++] != ASN_OCTET_STRING)
|
---|
| 8793 | return ASN_PARSE_E;
|
---|
| 8794 |
|
---|
| 8795 | if (GetLength(source, &idx, &length, size) < 0)
|
---|
| 8796 | return ASN_PARSE_E;
|
---|
| 8797 |
|
---|
| 8798 | if (DecodeBasicOcspResponse(source, &idx, resp, size) < 0)
|
---|
| 8799 | return ASN_PARSE_E;
|
---|
| 8800 |
|
---|
| 8801 | return 0;
|
---|
| 8802 | }
|
---|
| 8803 |
|
---|
| 8804 |
|
---|
| 8805 | static word32 SetOcspReqExtensions(word32 extSz, byte* output,
|
---|
| 8806 | const byte* nonce, word32 nonceSz)
|
---|
| 8807 | {
|
---|
| 8808 | static const byte NonceObjId[] = { 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07,
|
---|
| 8809 | 0x30, 0x01, 0x02 };
|
---|
| 8810 | byte seqArray[5][MAX_SEQ_SZ];
|
---|
| 8811 | word32 seqSz[5], totalSz;
|
---|
| 8812 |
|
---|
| 8813 | WOLFSSL_ENTER("SetOcspReqExtensions");
|
---|
| 8814 |
|
---|
| 8815 | if (nonce == NULL || nonceSz == 0) return 0;
|
---|
| 8816 |
|
---|
| 8817 | seqArray[0][0] = ASN_OCTET_STRING;
|
---|
| 8818 | seqSz[0] = 1 + SetLength(nonceSz, &seqArray[0][1]);
|
---|
| 8819 |
|
---|
| 8820 | seqArray[1][0] = ASN_OBJECT_ID;
|
---|
| 8821 | seqSz[1] = 1 + SetLength(sizeof(NonceObjId), &seqArray[1][1]);
|
---|
| 8822 |
|
---|
| 8823 | totalSz = seqSz[0] + seqSz[1] + nonceSz + (word32)sizeof(NonceObjId);
|
---|
| 8824 |
|
---|
| 8825 | seqSz[2] = SetSequence(totalSz, seqArray[2]);
|
---|
| 8826 | totalSz += seqSz[2];
|
---|
| 8827 |
|
---|
| 8828 | seqSz[3] = SetSequence(totalSz, seqArray[3]);
|
---|
| 8829 | totalSz += seqSz[3];
|
---|
| 8830 |
|
---|
| 8831 | seqArray[4][0] = (ASN_CONSTRUCTED | ASN_CONTEXT_SPECIFIC | 2);
|
---|
| 8832 | seqSz[4] = 1 + SetLength(totalSz, &seqArray[4][1]);
|
---|
| 8833 | totalSz += seqSz[4];
|
---|
| 8834 |
|
---|
| 8835 | if (totalSz < extSz)
|
---|
| 8836 | {
|
---|
| 8837 | totalSz = 0;
|
---|
| 8838 | XMEMCPY(output + totalSz, seqArray[4], seqSz[4]);
|
---|
| 8839 | totalSz += seqSz[4];
|
---|
| 8840 | XMEMCPY(output + totalSz, seqArray[3], seqSz[3]);
|
---|
| 8841 | totalSz += seqSz[3];
|
---|
| 8842 | XMEMCPY(output + totalSz, seqArray[2], seqSz[2]);
|
---|
| 8843 | totalSz += seqSz[2];
|
---|
| 8844 | XMEMCPY(output + totalSz, seqArray[1], seqSz[1]);
|
---|
| 8845 | totalSz += seqSz[1];
|
---|
| 8846 | XMEMCPY(output + totalSz, NonceObjId, sizeof(NonceObjId));
|
---|
| 8847 | totalSz += (word32)sizeof(NonceObjId);
|
---|
| 8848 | XMEMCPY(output + totalSz, seqArray[0], seqSz[0]);
|
---|
| 8849 | totalSz += seqSz[0];
|
---|
| 8850 | XMEMCPY(output + totalSz, nonce, nonceSz);
|
---|
| 8851 | totalSz += nonceSz;
|
---|
| 8852 | }
|
---|
| 8853 |
|
---|
| 8854 | return totalSz;
|
---|
| 8855 | }
|
---|
| 8856 |
|
---|
| 8857 |
|
---|
| 8858 | int EncodeOcspRequest(OcspRequest* req)
|
---|
| 8859 | {
|
---|
| 8860 | byte seqArray[5][MAX_SEQ_SZ];
|
---|
| 8861 | /* The ASN.1 of the OCSP Request is an onion of sequences */
|
---|
| 8862 | byte algoArray[MAX_ALGO_SZ];
|
---|
| 8863 | byte issuerArray[MAX_ENCODED_DIG_SZ];
|
---|
| 8864 | byte issuerKeyArray[MAX_ENCODED_DIG_SZ];
|
---|
| 8865 | byte snArray[MAX_SN_SZ];
|
---|
| 8866 | byte extArray[MAX_OCSP_EXT_SZ];
|
---|
| 8867 | byte* output = req->dest;
|
---|
| 8868 | word32 seqSz[5], algoSz, issuerSz, issuerKeySz, snSz, extSz, totalSz;
|
---|
| 8869 | int i;
|
---|
| 8870 |
|
---|
| 8871 | WOLFSSL_ENTER("EncodeOcspRequest");
|
---|
| 8872 |
|
---|
| 8873 | #ifdef NO_SHA
|
---|
| 8874 | algoSz = SetAlgoID(SHA256h, algoArray, hashType, 0);
|
---|
| 8875 | #else
|
---|
| 8876 | algoSz = SetAlgoID(SHAh, algoArray, hashType, 0);
|
---|
| 8877 | #endif
|
---|
| 8878 |
|
---|
| 8879 | req->issuerHash = req->cert->issuerHash;
|
---|
| 8880 | issuerSz = SetDigest(req->cert->issuerHash, KEYID_SIZE, issuerArray);
|
---|
| 8881 |
|
---|
| 8882 | req->issuerKeyHash = req->cert->issuerKeyHash;
|
---|
| 8883 | issuerKeySz = SetDigest(req->cert->issuerKeyHash,
|
---|
| 8884 | KEYID_SIZE, issuerKeyArray);
|
---|
| 8885 |
|
---|
| 8886 | req->serial = req->cert->serial;
|
---|
| 8887 | req->serialSz = req->cert->serialSz;
|
---|
| 8888 | snSz = SetSerialNumber(req->cert->serial, req->cert->serialSz, snArray);
|
---|
| 8889 |
|
---|
| 8890 | extSz = 0;
|
---|
| 8891 | if (req->useNonce) {
|
---|
| 8892 | WC_RNG rng;
|
---|
| 8893 | if (wc_InitRng(&rng) != 0) {
|
---|
| 8894 | WOLFSSL_MSG("\tCannot initialize RNG. Skipping the OSCP Nonce.");
|
---|
| 8895 | } else {
|
---|
| 8896 | if (wc_RNG_GenerateBlock(&rng, req->nonce, MAX_OCSP_NONCE_SZ) != 0)
|
---|
| 8897 | WOLFSSL_MSG("\tCannot run RNG. Skipping the OSCP Nonce.");
|
---|
| 8898 | else {
|
---|
| 8899 | req->nonceSz = MAX_OCSP_NONCE_SZ;
|
---|
| 8900 | extSz = SetOcspReqExtensions(MAX_OCSP_EXT_SZ, extArray,
|
---|
| 8901 | req->nonce, req->nonceSz);
|
---|
| 8902 | }
|
---|
| 8903 | wc_FreeRng(&rng);
|
---|
| 8904 | }
|
---|
| 8905 | }
|
---|
| 8906 |
|
---|
| 8907 | totalSz = algoSz + issuerSz + issuerKeySz + snSz;
|
---|
| 8908 |
|
---|
| 8909 | for (i = 4; i >= 0; i--) {
|
---|
| 8910 | seqSz[i] = SetSequence(totalSz, seqArray[i]);
|
---|
| 8911 | totalSz += seqSz[i];
|
---|
| 8912 | if (i == 2) totalSz += extSz;
|
---|
| 8913 | }
|
---|
| 8914 | totalSz = 0;
|
---|
| 8915 | for (i = 0; i < 5; i++) {
|
---|
| 8916 | XMEMCPY(output + totalSz, seqArray[i], seqSz[i]);
|
---|
| 8917 | totalSz += seqSz[i];
|
---|
| 8918 | }
|
---|
| 8919 | XMEMCPY(output + totalSz, algoArray, algoSz);
|
---|
| 8920 | totalSz += algoSz;
|
---|
| 8921 | XMEMCPY(output + totalSz, issuerArray, issuerSz);
|
---|
| 8922 | totalSz += issuerSz;
|
---|
| 8923 | XMEMCPY(output + totalSz, issuerKeyArray, issuerKeySz);
|
---|
| 8924 | totalSz += issuerKeySz;
|
---|
| 8925 | XMEMCPY(output + totalSz, snArray, snSz);
|
---|
| 8926 | totalSz += snSz;
|
---|
| 8927 | if (extSz != 0) {
|
---|
| 8928 | XMEMCPY(output + totalSz, extArray, extSz);
|
---|
| 8929 | totalSz += extSz;
|
---|
| 8930 | }
|
---|
| 8931 |
|
---|
| 8932 | return totalSz;
|
---|
| 8933 | }
|
---|
| 8934 |
|
---|
| 8935 |
|
---|
| 8936 | void InitOcspRequest(OcspRequest* req, DecodedCert* cert, byte useNonce,
|
---|
| 8937 | byte* dest, word32 destSz)
|
---|
| 8938 | {
|
---|
| 8939 | WOLFSSL_ENTER("InitOcspRequest");
|
---|
| 8940 |
|
---|
| 8941 | req->cert = cert;
|
---|
| 8942 | req->useNonce = useNonce;
|
---|
| 8943 | req->nonceSz = 0;
|
---|
| 8944 | req->issuerHash = NULL;
|
---|
| 8945 | req->issuerKeyHash = NULL;
|
---|
| 8946 | req->serial = NULL;
|
---|
| 8947 | req->dest = dest;
|
---|
| 8948 | req->destSz = destSz;
|
---|
| 8949 | }
|
---|
| 8950 |
|
---|
| 8951 |
|
---|
| 8952 | int CompareOcspReqResp(OcspRequest* req, OcspResponse* resp)
|
---|
| 8953 | {
|
---|
| 8954 | int cmp;
|
---|
| 8955 |
|
---|
| 8956 | WOLFSSL_ENTER("CompareOcspReqResp");
|
---|
| 8957 |
|
---|
| 8958 | if (req == NULL)
|
---|
| 8959 | {
|
---|
| 8960 | WOLFSSL_MSG("\tReq missing");
|
---|
| 8961 | return -1;
|
---|
| 8962 | }
|
---|
| 8963 |
|
---|
| 8964 | if (resp == NULL)
|
---|
| 8965 | {
|
---|
| 8966 | WOLFSSL_MSG("\tResp missing");
|
---|
| 8967 | return 1;
|
---|
| 8968 | }
|
---|
| 8969 |
|
---|
| 8970 | /* Nonces are not critical. The responder may not necessarily add
|
---|
| 8971 | * the nonce to the response. */
|
---|
| 8972 | if (req->useNonce && resp->nonceSz != 0) {
|
---|
| 8973 | cmp = req->nonceSz - resp->nonceSz;
|
---|
| 8974 | if (cmp != 0)
|
---|
| 8975 | {
|
---|
| 8976 | WOLFSSL_MSG("\tnonceSz mismatch");
|
---|
| 8977 | return cmp;
|
---|
| 8978 | }
|
---|
| 8979 |
|
---|
| 8980 | cmp = XMEMCMP(req->nonce, resp->nonce, req->nonceSz);
|
---|
| 8981 | if (cmp != 0)
|
---|
| 8982 | {
|
---|
| 8983 | WOLFSSL_MSG("\tnonce mismatch");
|
---|
| 8984 | return cmp;
|
---|
| 8985 | }
|
---|
| 8986 | }
|
---|
| 8987 |
|
---|
| 8988 | cmp = XMEMCMP(req->issuerHash, resp->issuerHash, KEYID_SIZE);
|
---|
| 8989 | if (cmp != 0)
|
---|
| 8990 | {
|
---|
| 8991 | WOLFSSL_MSG("\tissuerHash mismatch");
|
---|
| 8992 | return cmp;
|
---|
| 8993 | }
|
---|
| 8994 |
|
---|
| 8995 | cmp = XMEMCMP(req->issuerKeyHash, resp->issuerKeyHash, KEYID_SIZE);
|
---|
| 8996 | if (cmp != 0)
|
---|
| 8997 | {
|
---|
| 8998 | WOLFSSL_MSG("\tissuerKeyHash mismatch");
|
---|
| 8999 | return cmp;
|
---|
| 9000 | }
|
---|
| 9001 |
|
---|
| 9002 | cmp = req->serialSz - resp->status->serialSz;
|
---|
| 9003 | if (cmp != 0)
|
---|
| 9004 | {
|
---|
| 9005 | WOLFSSL_MSG("\tserialSz mismatch");
|
---|
| 9006 | return cmp;
|
---|
| 9007 | }
|
---|
| 9008 |
|
---|
| 9009 | cmp = XMEMCMP(req->serial, resp->status->serial, req->serialSz);
|
---|
| 9010 | if (cmp != 0)
|
---|
| 9011 | {
|
---|
| 9012 | WOLFSSL_MSG("\tserial mismatch");
|
---|
| 9013 | return cmp;
|
---|
| 9014 | }
|
---|
| 9015 |
|
---|
| 9016 | return 0;
|
---|
| 9017 | }
|
---|
| 9018 |
|
---|
| 9019 | #endif
|
---|
| 9020 |
|
---|
| 9021 |
|
---|
| 9022 | /* store SHA hash of NAME */
|
---|
| 9023 | WOLFSSL_LOCAL int GetNameHash(const byte* source, word32* idx, byte* hash,
|
---|
| 9024 | int maxIdx)
|
---|
| 9025 | {
|
---|
| 9026 | int length; /* length of all distinguished names */
|
---|
| 9027 | int ret;
|
---|
| 9028 | word32 dummy;
|
---|
| 9029 |
|
---|
| 9030 | WOLFSSL_ENTER("GetNameHash");
|
---|
| 9031 |
|
---|
| 9032 | if (source[*idx] == ASN_OBJECT_ID) {
|
---|
| 9033 | WOLFSSL_MSG("Trying optional prefix...");
|
---|
| 9034 |
|
---|
| 9035 | if (GetLength(source, idx, &length, maxIdx) < 0)
|
---|
| 9036 | return ASN_PARSE_E;
|
---|
| 9037 |
|
---|
| 9038 | *idx += length;
|
---|
| 9039 | WOLFSSL_MSG("Got optional prefix");
|
---|
| 9040 | }
|
---|
| 9041 |
|
---|
| 9042 | /* For OCSP, RFC2560 section 4.1.1 states the issuer hash should be
|
---|
| 9043 | * calculated over the entire DER encoding of the Name field, including
|
---|
| 9044 | * the tag and length. */
|
---|
| 9045 | dummy = *idx;
|
---|
| 9046 | if (GetSequence(source, idx, &length, maxIdx) < 0)
|
---|
| 9047 | return ASN_PARSE_E;
|
---|
| 9048 |
|
---|
| 9049 | #ifdef NO_SHA
|
---|
| 9050 | ret = wc_Sha256Hash(source + dummy, length + *idx - dummy, hash);
|
---|
| 9051 | #else
|
---|
| 9052 | ret = wc_ShaHash(source + dummy, length + *idx - dummy, hash);
|
---|
| 9053 | #endif
|
---|
| 9054 |
|
---|
| 9055 | *idx += length;
|
---|
| 9056 |
|
---|
| 9057 | return ret;
|
---|
| 9058 | }
|
---|
| 9059 |
|
---|
| 9060 |
|
---|
| 9061 | #ifdef HAVE_CRL
|
---|
| 9062 |
|
---|
| 9063 | /* initialize decoded CRL */
|
---|
| 9064 | void InitDecodedCRL(DecodedCRL* dcrl)
|
---|
| 9065 | {
|
---|
| 9066 | WOLFSSL_MSG("InitDecodedCRL");
|
---|
| 9067 |
|
---|
| 9068 | dcrl->certBegin = 0;
|
---|
| 9069 | dcrl->sigIndex = 0;
|
---|
| 9070 | dcrl->sigLength = 0;
|
---|
| 9071 | dcrl->signatureOID = 0;
|
---|
| 9072 | dcrl->certs = NULL;
|
---|
| 9073 | dcrl->totalCerts = 0;
|
---|
| 9074 | }
|
---|
| 9075 |
|
---|
| 9076 |
|
---|
| 9077 | /* free decoded CRL resources */
|
---|
| 9078 | void FreeDecodedCRL(DecodedCRL* dcrl)
|
---|
| 9079 | {
|
---|
| 9080 | RevokedCert* tmp = dcrl->certs;
|
---|
| 9081 |
|
---|
| 9082 | WOLFSSL_MSG("FreeDecodedCRL");
|
---|
| 9083 |
|
---|
| 9084 | while(tmp) {
|
---|
| 9085 | RevokedCert* next = tmp->next;
|
---|
| 9086 | XFREE(tmp, NULL, DYNAMIC_TYPE_REVOKED);
|
---|
| 9087 | tmp = next;
|
---|
| 9088 | }
|
---|
| 9089 | }
|
---|
| 9090 |
|
---|
| 9091 |
|
---|
| 9092 | /* Get Revoked Cert list, 0 on success */
|
---|
| 9093 | static int GetRevoked(const byte* buff, word32* idx, DecodedCRL* dcrl,
|
---|
| 9094 | int maxIdx)
|
---|
| 9095 | {
|
---|
| 9096 | int len;
|
---|
| 9097 | word32 end;
|
---|
| 9098 | byte b;
|
---|
| 9099 | RevokedCert* rc;
|
---|
| 9100 |
|
---|
| 9101 | WOLFSSL_ENTER("GetRevoked");
|
---|
| 9102 |
|
---|
| 9103 | if (GetSequence(buff, idx, &len, maxIdx) < 0)
|
---|
| 9104 | return ASN_PARSE_E;
|
---|
| 9105 |
|
---|
| 9106 | end = *idx + len;
|
---|
| 9107 |
|
---|
| 9108 | /* get serial number */
|
---|
| 9109 | b = buff[*idx];
|
---|
| 9110 | *idx += 1;
|
---|
| 9111 |
|
---|
| 9112 | if (b != ASN_INTEGER) {
|
---|
| 9113 | WOLFSSL_MSG("Expecting Integer");
|
---|
| 9114 | return ASN_PARSE_E;
|
---|
| 9115 | }
|
---|
| 9116 |
|
---|
| 9117 | if (GetLength(buff, idx, &len, maxIdx) < 0)
|
---|
| 9118 | return ASN_PARSE_E;
|
---|
| 9119 |
|
---|
| 9120 | if (len > EXTERNAL_SERIAL_SIZE) {
|
---|
| 9121 | WOLFSSL_MSG("Serial Size too big");
|
---|
| 9122 | return ASN_PARSE_E;
|
---|
| 9123 | }
|
---|
| 9124 |
|
---|
| 9125 | rc = (RevokedCert*)XMALLOC(sizeof(RevokedCert), NULL, DYNAMIC_TYPE_CRL);
|
---|
| 9126 | if (rc == NULL) {
|
---|
| 9127 | WOLFSSL_MSG("Alloc Revoked Cert failed");
|
---|
| 9128 | return MEMORY_E;
|
---|
| 9129 | }
|
---|
| 9130 |
|
---|
| 9131 | XMEMCPY(rc->serialNumber, &buff[*idx], len);
|
---|
| 9132 | rc->serialSz = len;
|
---|
| 9133 |
|
---|
| 9134 | /* add to list */
|
---|
| 9135 | rc->next = dcrl->certs;
|
---|
| 9136 | dcrl->certs = rc;
|
---|
| 9137 | dcrl->totalCerts++;
|
---|
| 9138 |
|
---|
| 9139 | *idx += len;
|
---|
| 9140 |
|
---|
| 9141 | /* get date */
|
---|
| 9142 | b = buff[*idx];
|
---|
| 9143 | *idx += 1;
|
---|
| 9144 |
|
---|
| 9145 | if (b != ASN_UTC_TIME && b != ASN_GENERALIZED_TIME) {
|
---|
| 9146 | WOLFSSL_MSG("Expecting Date");
|
---|
| 9147 | return ASN_PARSE_E;
|
---|
| 9148 | }
|
---|
| 9149 |
|
---|
| 9150 | if (GetLength(buff, idx, &len, maxIdx) < 0)
|
---|
| 9151 | return ASN_PARSE_E;
|
---|
| 9152 |
|
---|
| 9153 | /* skip for now */
|
---|
| 9154 | *idx += len;
|
---|
| 9155 |
|
---|
| 9156 | if (*idx != end) /* skip extensions */
|
---|
| 9157 | *idx = end;
|
---|
| 9158 |
|
---|
| 9159 | return 0;
|
---|
| 9160 | }
|
---|
| 9161 |
|
---|
| 9162 |
|
---|
| 9163 | /* Get CRL Signature, 0 on success */
|
---|
| 9164 | static int GetCRL_Signature(const byte* source, word32* idx, DecodedCRL* dcrl,
|
---|
| 9165 | int maxIdx)
|
---|
| 9166 | {
|
---|
| 9167 | int length;
|
---|
| 9168 | byte b;
|
---|
| 9169 |
|
---|
| 9170 | WOLFSSL_ENTER("GetCRL_Signature");
|
---|
| 9171 |
|
---|
| 9172 | b = source[*idx];
|
---|
| 9173 | *idx += 1;
|
---|
| 9174 | if (b != ASN_BIT_STRING)
|
---|
| 9175 | return ASN_BITSTR_E;
|
---|
| 9176 |
|
---|
| 9177 | if (GetLength(source, idx, &length, maxIdx) < 0)
|
---|
| 9178 | return ASN_PARSE_E;
|
---|
| 9179 |
|
---|
| 9180 | dcrl->sigLength = length;
|
---|
| 9181 |
|
---|
| 9182 | b = source[*idx];
|
---|
| 9183 | *idx += 1;
|
---|
| 9184 | if (b != 0x00)
|
---|
| 9185 | return ASN_EXPECT_0_E;
|
---|
| 9186 |
|
---|
| 9187 | dcrl->sigLength--;
|
---|
| 9188 | dcrl->signature = (byte*)&source[*idx];
|
---|
| 9189 |
|
---|
| 9190 | *idx += dcrl->sigLength;
|
---|
| 9191 |
|
---|
| 9192 | return 0;
|
---|
| 9193 | }
|
---|
| 9194 |
|
---|
| 9195 |
|
---|
| 9196 | /* prase crl buffer into decoded state, 0 on success */
|
---|
| 9197 | int ParseCRL(DecodedCRL* dcrl, const byte* buff, word32 sz, void* cm)
|
---|
| 9198 | {
|
---|
| 9199 | int version, len, doNextDate = 1;
|
---|
| 9200 | word32 oid, idx = 0, dateIdx;
|
---|
| 9201 | Signer* ca = NULL;
|
---|
| 9202 |
|
---|
| 9203 | WOLFSSL_MSG("ParseCRL");
|
---|
| 9204 |
|
---|
| 9205 | /* raw crl hash */
|
---|
| 9206 | /* hash here if needed for optimized comparisons
|
---|
| 9207 | * Sha sha;
|
---|
| 9208 | * wc_InitSha(&sha);
|
---|
| 9209 | * wc_ShaUpdate(&sha, buff, sz);
|
---|
| 9210 | * wc_ShaFinal(&sha, dcrl->crlHash); */
|
---|
| 9211 |
|
---|
| 9212 | if (GetSequence(buff, &idx, &len, sz) < 0)
|
---|
| 9213 | return ASN_PARSE_E;
|
---|
| 9214 |
|
---|
| 9215 | dcrl->certBegin = idx;
|
---|
| 9216 |
|
---|
| 9217 | if (GetSequence(buff, &idx, &len, sz) < 0)
|
---|
| 9218 | return ASN_PARSE_E;
|
---|
| 9219 | dcrl->sigIndex = len + idx;
|
---|
| 9220 |
|
---|
| 9221 | /* may have version */
|
---|
| 9222 | if (buff[idx] == ASN_INTEGER) {
|
---|
| 9223 | if (GetMyVersion(buff, &idx, &version) < 0)
|
---|
| 9224 | return ASN_PARSE_E;
|
---|
| 9225 | }
|
---|
| 9226 |
|
---|
| 9227 | if (GetAlgoId(buff, &idx, &oid, sz) < 0)
|
---|
| 9228 | return ASN_PARSE_E;
|
---|
| 9229 |
|
---|
| 9230 | if (GetNameHash(buff, &idx, dcrl->issuerHash, sz) < 0)
|
---|
| 9231 | return ASN_PARSE_E;
|
---|
| 9232 |
|
---|
| 9233 | if (GetBasicDate(buff, &idx, dcrl->lastDate, &dcrl->lastDateFormat, sz) < 0)
|
---|
| 9234 | return ASN_PARSE_E;
|
---|
| 9235 |
|
---|
| 9236 | dateIdx = idx;
|
---|
| 9237 |
|
---|
| 9238 | if (GetBasicDate(buff, &idx, dcrl->nextDate, &dcrl->nextDateFormat, sz) < 0)
|
---|
| 9239 | {
|
---|
| 9240 | #ifndef WOLFSSL_NO_CRL_NEXT_DATE
|
---|
| 9241 | (void)dateIdx;
|
---|
| 9242 | return ASN_PARSE_E;
|
---|
| 9243 | #else
|
---|
| 9244 | dcrl->nextDateFormat = ASN_OTHER_TYPE; /* skip flag */
|
---|
| 9245 | doNextDate = 0;
|
---|
| 9246 | idx = dateIdx;
|
---|
| 9247 | #endif
|
---|
| 9248 | }
|
---|
| 9249 |
|
---|
| 9250 | if (doNextDate && !XVALIDATE_DATE(dcrl->nextDate, dcrl->nextDateFormat,
|
---|
| 9251 | AFTER)) {
|
---|
| 9252 | WOLFSSL_MSG("CRL after date is no longer valid");
|
---|
| 9253 | return ASN_AFTER_DATE_E;
|
---|
| 9254 | }
|
---|
| 9255 |
|
---|
| 9256 | if (idx != dcrl->sigIndex && buff[idx] != CRL_EXTENSIONS) {
|
---|
| 9257 | if (GetSequence(buff, &idx, &len, sz) < 0)
|
---|
| 9258 | return ASN_PARSE_E;
|
---|
| 9259 |
|
---|
| 9260 | len += idx;
|
---|
| 9261 |
|
---|
| 9262 | while (idx < (word32)len) {
|
---|
| 9263 | if (GetRevoked(buff, &idx, dcrl, sz) < 0)
|
---|
| 9264 | return ASN_PARSE_E;
|
---|
| 9265 | }
|
---|
| 9266 | }
|
---|
| 9267 |
|
---|
| 9268 | if (idx != dcrl->sigIndex)
|
---|
| 9269 | idx = dcrl->sigIndex; /* skip extensions */
|
---|
| 9270 |
|
---|
| 9271 | if (GetAlgoId(buff, &idx, &dcrl->signatureOID, sz) < 0)
|
---|
| 9272 | return ASN_PARSE_E;
|
---|
| 9273 |
|
---|
| 9274 | if (GetCRL_Signature(buff, &idx, dcrl, sz) < 0)
|
---|
| 9275 | return ASN_PARSE_E;
|
---|
| 9276 |
|
---|
| 9277 | /* openssl doesn't add skid by default for CRLs cause firefox chokes
|
---|
| 9278 | we're not assuming it's available yet */
|
---|
| 9279 | #if !defined(NO_SKID) && defined(CRL_SKID_READY)
|
---|
| 9280 | if (dcrl->extAuthKeyIdSet)
|
---|
| 9281 | ca = GetCA(cm, dcrl->extAuthKeyId);
|
---|
| 9282 | if (ca == NULL)
|
---|
| 9283 | ca = GetCAByName(cm, dcrl->issuerHash);
|
---|
| 9284 | #else /* NO_SKID */
|
---|
| 9285 | ca = GetCA(cm, dcrl->issuerHash);
|
---|
| 9286 | #endif /* NO_SKID */
|
---|
| 9287 | WOLFSSL_MSG("About to verify CRL signature");
|
---|
| 9288 |
|
---|
| 9289 | if (ca) {
|
---|
| 9290 | WOLFSSL_MSG("Found CRL issuer CA");
|
---|
| 9291 | /* try to confirm/verify signature */
|
---|
| 9292 | #ifndef IGNORE_KEY_EXTENSIONS
|
---|
| 9293 | if ((ca->keyUsage & KEYUSE_CRL_SIGN) == 0) {
|
---|
| 9294 | WOLFSSL_MSG("CA cannot sign CRLs");
|
---|
| 9295 | return ASN_CRL_NO_SIGNER_E;
|
---|
| 9296 | }
|
---|
| 9297 | #endif /* IGNORE_KEY_EXTENSIONS */
|
---|
| 9298 | if (!ConfirmSignature(buff + dcrl->certBegin,
|
---|
| 9299 | dcrl->sigIndex - dcrl->certBegin,
|
---|
| 9300 | ca->publicKey, ca->pubKeySize, ca->keyOID,
|
---|
| 9301 | dcrl->signature, dcrl->sigLength, dcrl->signatureOID, NULL)) {
|
---|
| 9302 | WOLFSSL_MSG("CRL Confirm signature failed");
|
---|
| 9303 | return ASN_CRL_CONFIRM_E;
|
---|
| 9304 | }
|
---|
| 9305 | }
|
---|
| 9306 | else {
|
---|
| 9307 | WOLFSSL_MSG("Did NOT find CRL issuer CA");
|
---|
| 9308 | return ASN_CRL_NO_SIGNER_E;
|
---|
| 9309 | }
|
---|
| 9310 |
|
---|
| 9311 | return 0;
|
---|
| 9312 | }
|
---|
| 9313 |
|
---|
| 9314 | #endif /* HAVE_CRL */
|
---|
| 9315 | #endif
|
---|
| 9316 |
|
---|
| 9317 | #ifdef WOLFSSL_SEP
|
---|
| 9318 |
|
---|
| 9319 |
|
---|
| 9320 |
|
---|
| 9321 | #endif /* WOLFSSL_SEP */
|
---|
| 9322 |
|
---|