| 1 | /* ecc.h
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| 2 | *
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| 3 | * Copyright (C) 2006-2017 wolfSSL Inc.
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| 4 | *
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| 5 | * This file is part of wolfSSL.
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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 02110-1335, USA
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| 20 | */
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| 21 |
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| 22 |
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| 23 | #ifndef WOLF_CRYPT_ECC_H
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| 24 | #define WOLF_CRYPT_ECC_H
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| 25 |
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| 26 | #include <wolfssl/wolfcrypt/types.h>
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| 27 |
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| 28 | #ifdef HAVE_ECC
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| 29 |
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| 30 | #include <wolfssl/wolfcrypt/integer.h>
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| 31 | #include <wolfssl/wolfcrypt/random.h>
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| 32 |
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| 33 | #ifdef HAVE_X963_KDF
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| 34 | #include <wolfssl/wolfcrypt/hash.h>
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| 35 | #endif
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| 36 |
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| 37 | #ifdef WOLFSSL_ASYNC_CRYPT
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| 38 | #include <wolfssl/wolfcrypt/async.h>
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| 39 | #ifdef WOLFSSL_CERT_GEN
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| 40 | #include <wolfssl/wolfcrypt/asn.h>
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| 41 | #endif
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| 42 | #endif
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| 43 |
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| 44 | #ifdef WOLFSSL_ATECC508A
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| 45 | #include <wolfssl/wolfcrypt/port/atmel/atmel.h>
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| 46 | #endif /* WOLFSSL_ATECC508A */
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| 47 |
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| 48 |
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| 49 | #ifdef __cplusplus
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| 50 | extern "C" {
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| 51 | #endif
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| 52 |
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| 53 |
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| 54 | /* Enable curve B parameter if needed */
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| 55 | #if defined(HAVE_COMP_KEY) || defined(ECC_CACHE_CURVE)
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| 56 | #ifndef USE_ECC_B_PARAM /* Allow someone to force enable */
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| 57 | #define USE_ECC_B_PARAM
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| 58 | #endif
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| 59 | #endif
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| 60 |
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| 61 |
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| 62 | /* Use this as the key->idx if a custom ecc_set is used for key->dp */
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| 63 | #define ECC_CUSTOM_IDX (-1)
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| 64 |
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| 65 |
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| 66 | /* Determine max ECC bits based on enabled curves */
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| 67 | #if defined(HAVE_ECC521) || defined(HAVE_ALL_CURVES)
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| 68 | #define MAX_ECC_BITS 521
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| 69 | #elif defined(HAVE_ECC512)
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| 70 | #define MAX_ECC_BITS 512
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| 71 | #elif defined(HAVE_ECC384)
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| 72 | #define MAX_ECC_BITS 384
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| 73 | #elif defined(HAVE_ECC320)
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| 74 | #define MAX_ECC_BITS 320
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| 75 | #elif defined(HAVE_ECC239)
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| 76 | #define MAX_ECC_BITS 239
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| 77 | #elif defined(HAVE_ECC224)
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| 78 | #define MAX_ECC_BITS 224
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| 79 | #elif !defined(NO_ECC256)
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| 80 | #define MAX_ECC_BITS 256
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| 81 | #elif defined(HAVE_ECC192)
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| 82 | #define MAX_ECC_BITS 192
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| 83 | #elif defined(HAVE_ECC160)
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| 84 | #define MAX_ECC_BITS 160
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| 85 | #elif defined(HAVE_ECC128)
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| 86 | #define MAX_ECC_BITS 128
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| 87 | #elif defined(HAVE_ECC112)
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| 88 | #define MAX_ECC_BITS 112
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| 89 | #endif
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| 90 |
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| 91 | /* calculate max ECC bytes */
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| 92 | #if ((MAX_ECC_BITS * 2) % 8) == 0
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| 93 | #define MAX_ECC_BYTES (MAX_ECC_BITS / 8)
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| 94 | #else
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| 95 | /* add byte if not aligned */
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| 96 | #define MAX_ECC_BYTES ((MAX_ECC_BITS / 8) + 1)
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| 97 | #endif
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| 98 |
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| 99 |
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| 100 | enum {
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| 101 | ECC_PUBLICKEY = 1,
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| 102 | ECC_PRIVATEKEY = 2,
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| 103 | ECC_PRIVATEKEY_ONLY = 3,
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| 104 | ECC_MAXNAME = 16, /* MAX CURVE NAME LENGTH */
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| 105 | SIG_HEADER_SZ = 6, /* ECC signature header size */
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| 106 | ECC_BUFSIZE = 256, /* for exported keys temp buffer */
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| 107 | ECC_MINSIZE = 20, /* MIN Private Key size */
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| 108 | ECC_MAXSIZE = 66, /* MAX Private Key size */
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| 109 | ECC_MAXSIZE_GEN = 74, /* MAX Buffer size required when generating ECC keys*/
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| 110 | ECC_MAX_PAD_SZ = 4, /* ECC maximum padding size */
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| 111 | ECC_MAX_OID_LEN = 16,
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| 112 | ECC_MAX_SIG_SIZE= ((MAX_ECC_BYTES * 2) + ECC_MAX_PAD_SZ + SIG_HEADER_SZ)
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| 113 | };
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| 114 |
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| 115 | /* Curve Types */
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| 116 | typedef enum ecc_curve_id {
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| 117 | ECC_CURVE_INVALID = -1,
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| 118 | ECC_CURVE_DEF = 0, /* NIST or SECP */
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| 119 |
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| 120 | /* NIST Prime Curves */
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| 121 | ECC_SECP192R1,
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| 122 | ECC_PRIME192V2,
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| 123 | ECC_PRIME192V3,
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| 124 | ECC_PRIME239V1,
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| 125 | ECC_PRIME239V2,
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| 126 | ECC_PRIME239V3,
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| 127 | ECC_SECP256R1,
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| 128 |
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| 129 | /* SECP Curves */
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| 130 | ECC_SECP112R1,
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| 131 | ECC_SECP112R2,
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| 132 | ECC_SECP128R1,
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| 133 | ECC_SECP128R2,
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| 134 | ECC_SECP160R1,
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| 135 | ECC_SECP160R2,
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| 136 | ECC_SECP224R1,
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| 137 | ECC_SECP384R1,
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| 138 | ECC_SECP521R1,
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| 139 |
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| 140 | /* Koblitz */
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| 141 | ECC_SECP160K1,
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| 142 | ECC_SECP192K1,
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| 143 | ECC_SECP224K1,
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| 144 | ECC_SECP256K1,
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| 145 |
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| 146 | /* Brainpool Curves */
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| 147 | ECC_BRAINPOOLP160R1,
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| 148 | ECC_BRAINPOOLP192R1,
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| 149 | ECC_BRAINPOOLP224R1,
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| 150 | ECC_BRAINPOOLP256R1,
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| 151 | ECC_BRAINPOOLP320R1,
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| 152 | ECC_BRAINPOOLP384R1,
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| 153 | ECC_BRAINPOOLP512R1,
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| 154 |
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| 155 | /* Twisted Edwards Curves */
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| 156 | #ifdef HAVE_CURVE25519
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| 157 | ECC_X25519,
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| 158 | #endif
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| 159 | #ifdef HAVE_X448
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| 160 | ECC_X448,
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| 161 | #endif
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| 162 |
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| 163 | #ifdef WOLFSSL_CUSTOM_CURVES
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| 164 | ECC_CURVE_CUSTOM,
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| 165 | #endif
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| 166 | } ecc_curve_id;
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| 167 |
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| 168 | #ifdef HAVE_OID_ENCODING
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| 169 | typedef word16 ecc_oid_t;
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| 170 | #else
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| 171 | typedef byte ecc_oid_t;
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| 172 | /* OID encoded with ASN scheme:
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| 173 | first element = (oid[0] * 40) + oid[1]
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| 174 | if any element > 127 then MSB 0x80 indicates additional byte */
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| 175 | #endif
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| 176 |
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| 177 | /* ECC set type defined a GF(p) curve */
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| 178 | typedef struct ecc_set_type {
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| 179 | int size; /* The size of the curve in octets */
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| 180 | int id; /* id of this curve */
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| 181 | const char* name; /* name of this curve */
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| 182 | const char* prime; /* prime that defines the field, curve is in (hex) */
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| 183 | const char* Af; /* fields A param (hex) */
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| 184 | const char* Bf; /* fields B param (hex) */
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| 185 | const char* order; /* order of the curve (hex) */
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| 186 | const char* Gx; /* x coordinate of the base point on curve (hex) */
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| 187 | const char* Gy; /* y coordinate of the base point on curve (hex) */
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| 188 | const ecc_oid_t* oid;
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| 189 | word32 oidSz;
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| 190 | word32 oidSum; /* sum of encoded OID bytes */
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| 191 | int cofactor;
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| 192 | } ecc_set_type;
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| 193 |
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| 194 |
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| 195 | #ifdef ALT_ECC_SIZE
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| 196 |
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| 197 | /* Note on ALT_ECC_SIZE:
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| 198 | * The fast math code uses an array of a fixed size to store the big integers.
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| 199 | * By default, the array is big enough for RSA keys. There is a size,
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| 200 | * FP_MAX_BITS which can be used to make the array smaller when one wants ECC
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| 201 | * but not RSA. Some people want fast math sized for both RSA and ECC, where
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| 202 | * ECC won't use as much as RSA. The flag ALT_ECC_SIZE switches in an alternate
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| 203 | * ecc_point structure that uses an alternate fp_int that has a shorter array
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| 204 | * of fp_digits.
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| 205 | *
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| 206 | * Now, without ALT_ECC_SIZE, the ecc_point has three single item arrays of
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| 207 | * mp_ints for the components of the point. With ALT_ECC_SIZE, the components
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| 208 | * of the point are pointers that are set to each of a three item array of
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| 209 | * alt_fp_ints. While an mp_int will have 4096 bits of digit inside the
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| 210 | * structure, the alt_fp_int will only have 528 bits. A size value was added
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| 211 | * in the ALT case, as well, and is set by mp_init() and alt_fp_init(). The
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| 212 | * functions fp_zero() and fp_copy() use the size parameter. An int needs to
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| 213 | * be initialized before using it instead of just fp_zeroing it, the init will
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| 214 | * call zero. FP_MAX_BITS_ECC defaults to 528, but can be set to change the
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| 215 | * number of bits used in the alternate FP_INT.
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| 216 | *
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| 217 | * Do not enable ALT_ECC_SIZE and disable fast math in the configuration.
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| 218 | */
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| 219 |
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| 220 | #ifndef USE_FAST_MATH
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| 221 | #error USE_FAST_MATH must be defined to use ALT_ECC_SIZE
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| 222 | #endif
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| 223 |
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| 224 | /* determine max bits required for ECC math */
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| 225 | #ifndef FP_MAX_BITS_ECC
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| 226 | /* check alignment */
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| 227 | #if ((MAX_ECC_BITS * 2) % DIGIT_BIT) == 0
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| 228 | /* max bits is double */
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| 229 | #define FP_MAX_BITS_ECC (MAX_ECC_BITS * 2)
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| 230 | #else
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| 231 | /* max bits is doubled, plus one digit of fudge */
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| 232 | #define FP_MAX_BITS_ECC ((MAX_ECC_BITS * 2) + DIGIT_BIT)
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| 233 | #endif
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| 234 | #else
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| 235 | /* verify alignment */
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| 236 | #if FP_MAX_BITS_ECC % CHAR_BIT
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| 237 | #error FP_MAX_BITS_ECC must be a multiple of CHAR_BIT
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| 238 | #endif
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| 239 | #endif
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| 240 |
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| 241 | /* determine buffer size */
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| 242 | #define FP_SIZE_ECC (FP_MAX_BITS_ECC/DIGIT_BIT)
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| 243 |
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| 244 |
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| 245 | /* This needs to match the size of the fp_int struct, except the
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| 246 | * fp_digit array will be shorter. */
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| 247 | typedef struct alt_fp_int {
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| 248 | int used, sign, size;
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| 249 | fp_digit dp[FP_SIZE_ECC];
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| 250 | } alt_fp_int;
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| 251 | #endif /* ALT_ECC_SIZE */
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| 252 |
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| 253 |
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| 254 | /* A point on an ECC curve, stored in Jacbobian format such that (x,y,z) =>
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| 255 | (x/z^2, y/z^3, 1) when interpreted as affine */
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| 256 | typedef struct {
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| 257 | #ifndef ALT_ECC_SIZE
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| 258 | mp_int x[1]; /* The x coordinate */
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| 259 | mp_int y[1]; /* The y coordinate */
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| 260 | mp_int z[1]; /* The z coordinate */
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| 261 | #else
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| 262 | mp_int* x; /* The x coordinate */
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| 263 | mp_int* y; /* The y coordinate */
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| 264 | mp_int* z; /* The z coordinate */
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| 265 | alt_fp_int xyz[3];
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| 266 | #endif
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| 267 | } ecc_point;
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| 268 |
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| 269 | /* ECC Flags */
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| 270 | enum {
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| 271 | WC_ECC_FLAG_NONE = 0x00,
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| 272 | #ifdef HAVE_ECC_CDH
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| 273 | WC_ECC_FLAG_COFACTOR = 0x01,
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| 274 | #endif
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| 275 | };
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| 276 |
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| 277 | /* An ECC Key */
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| 278 | struct ecc_key {
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| 279 | int type; /* Public or Private */
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| 280 | int idx; /* Index into the ecc_sets[] for the parameters of
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| 281 | this curve if -1, this key is using user supplied
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| 282 | curve in dp */
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| 283 | int state;
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| 284 | word32 flags;
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| 285 | const ecc_set_type* dp; /* domain parameters, either points to NIST
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| 286 | curves (idx >= 0) or user supplied */
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| 287 | void* heap; /* heap hint */
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| 288 | #ifdef WOLFSSL_ATECC508A
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| 289 | int slot; /* Key Slot Number (-1 unknown) */
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| 290 | byte pubkey[PUB_KEY_SIZE];
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| 291 | #else
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| 292 | ecc_point pubkey; /* public key */
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| 293 | mp_int k; /* private key */
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| 294 | #endif
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| 295 | #ifdef WOLFSSL_ASYNC_CRYPT
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| 296 | mp_int* r; /* sign/verify temps */
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| 297 | mp_int* s;
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| 298 | WC_ASYNC_DEV asyncDev;
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| 299 | #ifdef WOLFSSL_CERT_GEN
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| 300 | CertSignCtx certSignCtx; /* context info for cert sign (MakeSignature) */
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| 301 | #endif
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| 302 | #endif /* WOLFSSL_ASYNC_CRYPT */
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| 303 | };
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| 304 |
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| 305 | #ifndef WC_ECCKEY_TYPE_DEFINED
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| 306 | typedef struct ecc_key ecc_key;
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| 307 | #define WC_ECCKEY_TYPE_DEFINED
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| 308 | #endif
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| 309 |
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| 310 |
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| 311 | /* ECC predefined curve sets */
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| 312 | extern const ecc_set_type ecc_sets[];
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| 313 |
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| 314 | WOLFSSL_API
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| 315 | const char* wc_ecc_get_name(int curve_id);
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| 316 |
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| 317 | #ifndef WOLFSSL_ATECC508A
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| 318 |
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| 319 | #ifdef WOLFSSL_PUBLIC_ECC_ADD_DBL
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| 320 | #define ECC_API WOLFSSL_API
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| 321 | #else
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| 322 | #define ECC_API WOLFSSL_LOCAL
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| 323 | #endif
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| 324 |
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| 325 | ECC_API int ecc_map(ecc_point*, mp_int*, mp_digit);
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| 326 | ECC_API int ecc_projective_add_point(ecc_point* P, ecc_point* Q, ecc_point* R,
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| 327 | mp_int* a, mp_int* modulus, mp_digit mp);
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| 328 | ECC_API int ecc_projective_dbl_point(ecc_point* P, ecc_point* R, mp_int* a,
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| 329 | mp_int* modulus, mp_digit mp);
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| 330 |
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| 331 | #endif
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| 332 |
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| 333 | WOLFSSL_API
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| 334 | int wc_ecc_make_key(WC_RNG* rng, int keysize, ecc_key* key);
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| 335 | WOLFSSL_API
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| 336 | int wc_ecc_make_key_ex(WC_RNG* rng, int keysize, ecc_key* key,
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| 337 | int curve_id);
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| 338 | WOLFSSL_API
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| 339 | int wc_ecc_make_pub(ecc_key* key, ecc_point* pubOut);
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| 340 | WOLFSSL_API
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| 341 | int wc_ecc_check_key(ecc_key* key);
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| 342 | WOLFSSL_API
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| 343 | int wc_ecc_is_point(ecc_point* ecp, mp_int* a, mp_int* b, mp_int* prime);
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| 344 |
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| 345 | #ifdef HAVE_ECC_DHE
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| 346 | WOLFSSL_API
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| 347 | int wc_ecc_shared_secret(ecc_key* private_key, ecc_key* public_key, byte* out,
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| 348 | word32* outlen);
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| 349 | WOLFSSL_LOCAL
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| 350 | int wc_ecc_shared_secret_gen(ecc_key* private_key, ecc_point* point,
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| 351 | byte* out, word32 *outlen);
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| 352 | WOLFSSL_API
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| 353 | int wc_ecc_shared_secret_ex(ecc_key* private_key, ecc_point* point,
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| 354 | byte* out, word32 *outlen);
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| 355 | #define wc_ecc_shared_secret_ssh wc_ecc_shared_secret_ex /* For backwards compat */
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| 356 | #endif /* HAVE_ECC_DHE */
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| 357 |
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| 358 | #ifdef HAVE_ECC_SIGN
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| 359 | WOLFSSL_API
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| 360 | int wc_ecc_sign_hash(const byte* in, word32 inlen, byte* out, word32 *outlen,
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| 361 | WC_RNG* rng, ecc_key* key);
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| 362 | WOLFSSL_API
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| 363 | int wc_ecc_sign_hash_ex(const byte* in, word32 inlen, WC_RNG* rng,
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| 364 | ecc_key* key, mp_int *r, mp_int *s);
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| 365 | #endif /* HAVE_ECC_SIGN */
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| 366 |
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| 367 | #ifdef HAVE_ECC_VERIFY
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| 368 | WOLFSSL_API
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| 369 | int wc_ecc_verify_hash(const byte* sig, word32 siglen, const byte* hash,
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| 370 | word32 hashlen, int* stat, ecc_key* key);
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| 371 | WOLFSSL_API
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| 372 | int wc_ecc_verify_hash_ex(mp_int *r, mp_int *s, const byte* hash,
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| 373 | word32 hashlen, int* stat, ecc_key* key);
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| 374 | #endif /* HAVE_ECC_VERIFY */
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| 375 |
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| 376 | WOLFSSL_API
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| 377 | int wc_ecc_init(ecc_key* key);
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| 378 | WOLFSSL_API
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| 379 | int wc_ecc_init_ex(ecc_key* key, void* heap, int devId);
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| 380 | WOLFSSL_API
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| 381 | void wc_ecc_free(ecc_key* key);
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| 382 | WOLFSSL_API
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| 383 | int wc_ecc_set_flags(ecc_key* key, word32 flags);
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| 384 | WOLFSSL_API
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| 385 | void wc_ecc_fp_free(void);
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| 386 |
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| 387 | WOLFSSL_API
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| 388 | int wc_ecc_set_curve(ecc_key* key, int keysize, int curve_id);
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| 389 |
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| 390 | WOLFSSL_API
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| 391 | int wc_ecc_is_valid_idx(int n);
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| 392 | WOLFSSL_API
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| 393 | int wc_ecc_get_curve_idx(int curve_id);
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| 394 | WOLFSSL_API
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| 395 | int wc_ecc_get_curve_id(int curve_idx);
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| 396 | #define wc_ecc_get_curve_name_from_id wc_ecc_get_name
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| 397 | WOLFSSL_API
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| 398 | int wc_ecc_get_curve_size_from_id(int curve_id);
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| 399 |
|
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| 400 | WOLFSSL_API
|
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| 401 | int wc_ecc_get_curve_idx_from_name(const char* curveName);
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| 402 | WOLFSSL_API
|
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| 403 | int wc_ecc_get_curve_size_from_name(const char* curveName);
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| 404 | WOLFSSL_API
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| 405 | int wc_ecc_get_curve_id_from_name(const char* curveName);
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| 406 | WOLFSSL_API
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| 407 | int wc_ecc_get_curve_id_from_params(int fieldSize,
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| 408 | const byte* prime, word32 primeSz, const byte* Af, word32 AfSz,
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| 409 | const byte* Bf, word32 BfSz, const byte* order, word32 orderSz,
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| 410 | const byte* Gx, word32 GxSz, const byte* Gy, word32 GySz, int cofactor);
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| 411 |
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| 412 | #ifndef WOLFSSL_ATECC508A
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| 413 |
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| 414 | WOLFSSL_API
|
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| 415 | ecc_point* wc_ecc_new_point(void);
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| 416 | WOLFSSL_API
|
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| 417 | ecc_point* wc_ecc_new_point_h(void* h);
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| 418 | WOLFSSL_API
|
|---|
| 419 | void wc_ecc_del_point(ecc_point* p);
|
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| 420 | WOLFSSL_API
|
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| 421 | void wc_ecc_del_point_h(ecc_point* p, void* h);
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| 422 | WOLFSSL_API
|
|---|
| 423 | int wc_ecc_copy_point(ecc_point* p, ecc_point *r);
|
|---|
| 424 | WOLFSSL_API
|
|---|
| 425 | int wc_ecc_cmp_point(ecc_point* a, ecc_point *b);
|
|---|
| 426 | WOLFSSL_API
|
|---|
| 427 | int wc_ecc_point_is_at_infinity(ecc_point *p);
|
|---|
| 428 | WOLFSSL_API
|
|---|
| 429 | int wc_ecc_mulmod(mp_int* k, ecc_point *G, ecc_point *R,
|
|---|
| 430 | mp_int* a, mp_int* modulus, int map);
|
|---|
| 431 | WOLFSSL_LOCAL
|
|---|
| 432 | int wc_ecc_mulmod_ex(mp_int* k, ecc_point *G, ecc_point *R,
|
|---|
| 433 | mp_int* a, mp_int* modulus, int map, void* heap);
|
|---|
| 434 | #endif /* !WOLFSSL_ATECC508A */
|
|---|
| 435 |
|
|---|
| 436 |
|
|---|
| 437 | #ifdef HAVE_ECC_KEY_EXPORT
|
|---|
| 438 | /* ASN key helpers */
|
|---|
| 439 | WOLFSSL_API
|
|---|
| 440 | int wc_ecc_export_x963(ecc_key*, byte* out, word32* outLen);
|
|---|
| 441 | WOLFSSL_API
|
|---|
| 442 | int wc_ecc_export_x963_ex(ecc_key*, byte* out, word32* outLen, int compressed);
|
|---|
| 443 | /* extended functionality with compressed option */
|
|---|
| 444 | #endif /* HAVE_ECC_KEY_EXPORT */
|
|---|
| 445 |
|
|---|
| 446 | #ifdef HAVE_ECC_KEY_IMPORT
|
|---|
| 447 | WOLFSSL_API
|
|---|
| 448 | int wc_ecc_import_x963(const byte* in, word32 inLen, ecc_key* key);
|
|---|
| 449 | WOLFSSL_API
|
|---|
| 450 | int wc_ecc_import_x963_ex(const byte* in, word32 inLen, ecc_key* key,
|
|---|
| 451 | int curve_id);
|
|---|
| 452 | WOLFSSL_API
|
|---|
| 453 | int wc_ecc_import_private_key(const byte* priv, word32 privSz, const byte* pub,
|
|---|
| 454 | word32 pubSz, ecc_key* key);
|
|---|
| 455 | WOLFSSL_API
|
|---|
| 456 | int wc_ecc_import_private_key_ex(const byte* priv, word32 privSz,
|
|---|
| 457 | const byte* pub, word32 pubSz, ecc_key* key, int curve_id);
|
|---|
| 458 | WOLFSSL_API
|
|---|
| 459 | int wc_ecc_rs_to_sig(const char* r, const char* s, byte* out, word32* outlen);
|
|---|
| 460 | WOLFSSL_API
|
|---|
| 461 | int wc_ecc_sig_to_rs(const byte* sig, word32 sigLen, byte* r, word32* rLen,
|
|---|
| 462 | byte* s, word32* sLen);
|
|---|
| 463 | WOLFSSL_API
|
|---|
| 464 | int wc_ecc_import_raw(ecc_key* key, const char* qx, const char* qy,
|
|---|
| 465 | const char* d, const char* curveName);
|
|---|
| 466 | WOLFSSL_API
|
|---|
| 467 | int wc_ecc_import_raw_ex(ecc_key* key, const char* qx, const char* qy,
|
|---|
| 468 | const char* d, int curve_id);
|
|---|
| 469 | #endif /* HAVE_ECC_KEY_IMPORT */
|
|---|
| 470 |
|
|---|
| 471 | #ifdef HAVE_ECC_KEY_EXPORT
|
|---|
| 472 | WOLFSSL_API
|
|---|
| 473 | int wc_ecc_export_private_only(ecc_key* key, byte* out, word32* outLen);
|
|---|
| 474 | WOLFSSL_API
|
|---|
| 475 | int wc_ecc_export_public_raw(ecc_key* key, byte* qx, word32* qxLen,
|
|---|
| 476 | byte* qy, word32* qyLen);
|
|---|
| 477 | WOLFSSL_API
|
|---|
| 478 | int wc_ecc_export_private_raw(ecc_key* key, byte* qx, word32* qxLen,
|
|---|
| 479 | byte* qy, word32* qyLen, byte* d, word32* dLen);
|
|---|
| 480 | #endif /* HAVE_ECC_KEY_EXPORT */
|
|---|
| 481 |
|
|---|
| 482 | #ifdef HAVE_ECC_KEY_EXPORT
|
|---|
| 483 |
|
|---|
| 484 | WOLFSSL_API
|
|---|
| 485 | int wc_ecc_export_point_der(const int curve_idx, ecc_point* point,
|
|---|
| 486 | byte* out, word32* outLen);
|
|---|
| 487 | #endif /* HAVE_ECC_KEY_EXPORT */
|
|---|
| 488 |
|
|---|
| 489 |
|
|---|
| 490 | #ifdef HAVE_ECC_KEY_IMPORT
|
|---|
| 491 | WOLFSSL_API
|
|---|
| 492 | int wc_ecc_import_point_der(byte* in, word32 inLen, const int curve_idx,
|
|---|
| 493 | ecc_point* point);
|
|---|
| 494 | #endif /* HAVE_ECC_KEY_IMPORT */
|
|---|
| 495 |
|
|---|
| 496 | /* size helper */
|
|---|
| 497 | WOLFSSL_API
|
|---|
| 498 | int wc_ecc_size(ecc_key* key);
|
|---|
| 499 | WOLFSSL_API
|
|---|
| 500 | int wc_ecc_sig_size(ecc_key* key);
|
|---|
| 501 |
|
|---|
| 502 | WOLFSSL_API
|
|---|
| 503 | int wc_ecc_get_oid(word32 oidSum, const byte** oid, word32* oidSz);
|
|---|
| 504 |
|
|---|
| 505 | #ifdef WOLFSSL_CUSTOM_CURVES
|
|---|
| 506 | WOLFSSL_API
|
|---|
| 507 | int wc_ecc_set_custom_curve(ecc_key* key, const ecc_set_type* dp);
|
|---|
| 508 | #endif
|
|---|
| 509 |
|
|---|
| 510 | #ifdef HAVE_ECC_ENCRYPT
|
|---|
| 511 | /* ecc encrypt */
|
|---|
| 512 |
|
|---|
| 513 | enum ecEncAlgo {
|
|---|
| 514 | ecAES_128_CBC = 1, /* default */
|
|---|
| 515 | ecAES_256_CBC = 2
|
|---|
| 516 | };
|
|---|
| 517 |
|
|---|
| 518 | enum ecKdfAlgo {
|
|---|
| 519 | ecHKDF_SHA256 = 1, /* default */
|
|---|
| 520 | ecHKDF_SHA1 = 2
|
|---|
| 521 | };
|
|---|
| 522 |
|
|---|
| 523 | enum ecMacAlgo {
|
|---|
| 524 | ecHMAC_SHA256 = 1, /* default */
|
|---|
| 525 | ecHMAC_SHA1 = 2
|
|---|
| 526 | };
|
|---|
| 527 |
|
|---|
| 528 | enum {
|
|---|
| 529 | KEY_SIZE_128 = 16,
|
|---|
| 530 | KEY_SIZE_256 = 32,
|
|---|
| 531 | IV_SIZE_64 = 8,
|
|---|
| 532 | IV_SIZE_128 = 16,
|
|---|
| 533 | EXCHANGE_SALT_SZ = 16,
|
|---|
| 534 | EXCHANGE_INFO_SZ = 23
|
|---|
| 535 | };
|
|---|
| 536 |
|
|---|
| 537 | enum ecFlags {
|
|---|
| 538 | REQ_RESP_CLIENT = 1,
|
|---|
| 539 | REQ_RESP_SERVER = 2
|
|---|
| 540 | };
|
|---|
| 541 |
|
|---|
| 542 |
|
|---|
| 543 | typedef struct ecEncCtx ecEncCtx;
|
|---|
| 544 |
|
|---|
| 545 | WOLFSSL_API
|
|---|
| 546 | ecEncCtx* wc_ecc_ctx_new(int flags, WC_RNG* rng);
|
|---|
| 547 | WOLFSSL_API
|
|---|
| 548 | ecEncCtx* wc_ecc_ctx_new_ex(int flags, WC_RNG* rng, void* heap);
|
|---|
| 549 | WOLFSSL_API
|
|---|
| 550 | void wc_ecc_ctx_free(ecEncCtx*);
|
|---|
| 551 | WOLFSSL_API
|
|---|
| 552 | int wc_ecc_ctx_reset(ecEncCtx*, WC_RNG*); /* reset for use again w/o alloc/free */
|
|---|
| 553 |
|
|---|
| 554 | WOLFSSL_API
|
|---|
| 555 | const byte* wc_ecc_ctx_get_own_salt(ecEncCtx*);
|
|---|
| 556 | WOLFSSL_API
|
|---|
| 557 | int wc_ecc_ctx_set_peer_salt(ecEncCtx*, const byte* salt);
|
|---|
| 558 | WOLFSSL_API
|
|---|
| 559 | int wc_ecc_ctx_set_info(ecEncCtx*, const byte* info, int sz);
|
|---|
| 560 |
|
|---|
| 561 | WOLFSSL_API
|
|---|
| 562 | int wc_ecc_encrypt(ecc_key* privKey, ecc_key* pubKey, const byte* msg,
|
|---|
| 563 | word32 msgSz, byte* out, word32* outSz, ecEncCtx* ctx);
|
|---|
| 564 | WOLFSSL_API
|
|---|
| 565 | int wc_ecc_decrypt(ecc_key* privKey, ecc_key* pubKey, const byte* msg,
|
|---|
| 566 | word32 msgSz, byte* out, word32* outSz, ecEncCtx* ctx);
|
|---|
| 567 |
|
|---|
| 568 | #endif /* HAVE_ECC_ENCRYPT */
|
|---|
| 569 |
|
|---|
| 570 | #ifdef HAVE_X963_KDF
|
|---|
| 571 | WOLFSSL_API int wc_X963_KDF(enum wc_HashType type, const byte* secret,
|
|---|
| 572 | word32 secretSz, const byte* sinfo, word32 sinfoSz,
|
|---|
| 573 | byte* out, word32 outSz);
|
|---|
| 574 | #endif
|
|---|
| 575 |
|
|---|
| 576 | #ifdef ECC_CACHE_CURVE
|
|---|
| 577 | WOLFSSL_API int wc_ecc_curve_cache_init(void);
|
|---|
| 578 | WOLFSSL_API void wc_ecc_curve_cache_free(void);
|
|---|
| 579 | #endif
|
|---|
| 580 |
|
|---|
| 581 |
|
|---|
| 582 | #ifdef __cplusplus
|
|---|
| 583 | } /* extern "C" */
|
|---|
| 584 | #endif
|
|---|
| 585 |
|
|---|
| 586 | #endif /* HAVE_ECC */
|
|---|
| 587 | #endif /* WOLF_CRYPT_ECC_H */
|
|---|
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