[164] | 1 | /* hmac.h
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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 |
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| 23 | #ifndef NO_HMAC
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| 24 |
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| 25 | #ifndef WOLF_CRYPT_HMAC_H
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| 26 | #define WOLF_CRYPT_HMAC_H
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| 27 |
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| 28 | #include <wolfssl/wolfcrypt/types.h>
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| 29 |
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| 30 | #ifndef NO_MD5
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| 31 | #include <wolfssl/wolfcrypt/md5.h>
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| 32 | #endif
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| 33 |
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| 34 | #ifndef NO_SHA
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| 35 | #include <wolfssl/wolfcrypt/sha.h>
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| 36 | #endif
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| 37 |
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| 38 | #ifndef NO_SHA256
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| 39 | #include <wolfssl/wolfcrypt/sha256.h>
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| 40 | #endif
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| 41 |
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| 42 | #ifdef WOLFSSL_SHA512
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| 43 | #include <wolfssl/wolfcrypt/sha512.h>
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| 44 | #endif
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| 45 |
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| 46 | #ifdef HAVE_BLAKE2
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| 47 | #include <wolfssl/wolfcrypt/blake2.h>
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| 48 | #endif
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| 49 |
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| 50 | #ifdef HAVE_FIPS
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| 51 | /* for fips */
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| 52 | #include <cyassl/ctaocrypt/hmac.h>
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| 53 | #endif
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| 54 |
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| 55 | #ifdef HAVE_CAVIUM
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| 56 | #include <wolfssl/wolfcrypt/logging.h>
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| 57 | #include "cavium_common.h"
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| 58 | #endif
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| 59 |
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| 60 |
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| 61 | #ifdef __cplusplus
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| 62 | extern "C" {
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| 63 | #endif
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| 64 | #ifndef HAVE_FIPS
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| 65 | #define WOLFSSL_HMAC_CAVIUM_MAGIC 0xBEEF0005
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| 66 |
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| 67 | enum {
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| 68 | HMAC_FIPS_MIN_KEY = 14, /* 112 bit key length minimum */
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| 69 |
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| 70 | IPAD = 0x36,
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| 71 | OPAD = 0x5C,
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| 72 |
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| 73 | /* If any hash is not enabled, add the ID here. */
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| 74 | #ifdef NO_MD5
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| 75 | MD5 = 0,
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| 76 | #endif
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| 77 | #ifdef NO_SHA
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| 78 | SHA = 1,
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| 79 | #endif
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| 80 | #ifdef NO_SHA256
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| 81 | SHA256 = 2,
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| 82 | #endif
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| 83 | #ifndef WOLFSSL_SHA512
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| 84 | SHA512 = 4,
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| 85 | #endif
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| 86 | #ifndef WOLFSSL_SHA384
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| 87 | SHA384 = 5,
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| 88 | #endif
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| 89 | #ifndef HAVE_BLAKE2
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| 90 | BLAKE2B_ID = 7,
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| 91 | #endif
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| 92 |
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| 93 | /* Select the largest available hash for the buffer size. */
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| 94 | #if defined(WOLFSSL_SHA512)
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| 95 | MAX_DIGEST_SIZE = SHA512_DIGEST_SIZE,
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| 96 | HMAC_BLOCK_SIZE = SHA512_BLOCK_SIZE
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| 97 | #elif defined(HAVE_BLAKE2)
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| 98 | MAX_DIGEST_SIZE = BLAKE2B_OUTBYTES,
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| 99 | HMAC_BLOCK_SIZE = BLAKE2B_BLOCKBYTES,
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| 100 | #elif defined(WOLFSSL_SHA384)
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| 101 | MAX_DIGEST_SIZE = SHA384_DIGEST_SIZE,
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| 102 | HMAC_BLOCK_SIZE = SHA384_BLOCK_SIZE
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| 103 | #elif !defined(NO_SHA256)
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| 104 | MAX_DIGEST_SIZE = SHA256_DIGEST_SIZE,
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| 105 | HMAC_BLOCK_SIZE = SHA256_BLOCK_SIZE
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| 106 | #elif !defined(NO_SHA)
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| 107 | MAX_DIGEST_SIZE = SHA_DIGEST_SIZE,
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| 108 | HMAC_BLOCK_SIZE = SHA_BLOCK_SIZE
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| 109 | #elif !defined(NO_MD5)
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| 110 | MAX_DIGEST_SIZE = MD5_DIGEST_SIZE,
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| 111 | HMAC_BLOCK_SIZE = MD5_BLOCK_SIZE
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| 112 | #else
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| 113 | #error "You have to have some kind of hash if you want to use HMAC."
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| 114 | #endif
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| 115 | };
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| 116 |
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| 117 |
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| 118 | /* hash union */
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| 119 | typedef union {
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| 120 | #ifndef NO_MD5
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| 121 | Md5 md5;
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| 122 | #endif
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| 123 | #ifndef NO_SHA
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| 124 | Sha sha;
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| 125 | #endif
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| 126 | #ifndef NO_SHA256
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| 127 | Sha256 sha256;
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| 128 | #endif
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| 129 | #ifdef WOLFSSL_SHA384
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| 130 | Sha384 sha384;
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| 131 | #endif
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| 132 | #ifdef WOLFSSL_SHA512
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| 133 | Sha512 sha512;
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| 134 | #endif
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| 135 | #ifdef HAVE_BLAKE2
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| 136 | Blake2b blake2b;
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| 137 | #endif
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| 138 | } Hash;
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| 139 |
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| 140 | /* Hmac digest */
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| 141 | typedef struct Hmac {
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| 142 | Hash hash;
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| 143 | word32 ipad[HMAC_BLOCK_SIZE / sizeof(word32)]; /* same block size all*/
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| 144 | word32 opad[HMAC_BLOCK_SIZE / sizeof(word32)];
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| 145 | word32 innerHash[MAX_DIGEST_SIZE / sizeof(word32)];
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| 146 | byte macType; /* md5 sha or sha256 */
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| 147 | byte innerHashKeyed; /* keyed flag */
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| 148 | #ifdef HAVE_CAVIUM
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| 149 | word16 keyLen; /* hmac key length */
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| 150 | word16 dataLen;
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| 151 | HashType type; /* hmac key type */
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| 152 | int devId; /* nitrox device id */
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| 153 | word32 magic; /* using cavium magic */
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| 154 | word64 contextHandle; /* nitrox context memory handle */
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| 155 | byte* data; /* buffered input data for one call */
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| 156 | #endif
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| 157 | } Hmac;
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| 158 |
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| 159 | #endif /* HAVE_FIPS */
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| 160 |
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| 161 | /* does init */
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| 162 | WOLFSSL_API int wc_HmacSetKey(Hmac*, int type, const byte* key, word32 keySz);
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| 163 | WOLFSSL_API int wc_HmacUpdate(Hmac*, const byte*, word32);
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| 164 | WOLFSSL_API int wc_HmacFinal(Hmac*, byte*);
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| 165 |
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| 166 | #ifdef HAVE_CAVIUM
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| 167 | WOLFSSL_API int wc_HmacInitCavium(Hmac*, int);
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| 168 | WOLFSSL_API void wc_HmacFreeCavium(Hmac*);
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| 169 | #endif
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| 170 |
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| 171 | WOLFSSL_API int wolfSSL_GetHmacMaxSize(void);
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| 172 |
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| 173 |
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| 174 | #ifdef HAVE_HKDF
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| 175 |
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| 176 | WOLFSSL_API int wc_HKDF(int type, const byte* inKey, word32 inKeySz,
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| 177 | const byte* salt, word32 saltSz,
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| 178 | const byte* info, word32 infoSz,
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| 179 | byte* out, word32 outSz);
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| 180 |
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| 181 | #endif /* HAVE_HKDF */
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| 182 |
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| 183 | #ifdef __cplusplus
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| 184 | } /* extern "C" */
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| 185 | #endif
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| 186 |
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| 187 | #endif /* WOLF_CRYPT_HMAC_H */
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| 188 |
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| 189 | #endif /* NO_HMAC */
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| 190 |
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