/usr/include/wolfssl/wolfcrypt/hmac.h is in libwolfssl-dev 3.4.8+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 | /* hmac.h
*
* Copyright (C) 2006-2015 wolfSSL Inc.
*
* This file is part of wolfSSL. (formerly known as CyaSSL)
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef NO_HMAC
#ifndef WOLF_CRYPT_HMAC_H
#define WOLF_CRYPT_HMAC_H
#include <wolfssl/wolfcrypt/types.h>
#ifndef NO_MD5
#include <wolfssl/wolfcrypt/md5.h>
#endif
#ifndef NO_SHA
#include <wolfssl/wolfcrypt/sha.h>
#endif
#ifndef NO_SHA256
#include <wolfssl/wolfcrypt/sha256.h>
#endif
#ifdef WOLFSSL_SHA512
#include <wolfssl/wolfcrypt/sha512.h>
#endif
#ifdef HAVE_BLAKE2
#include <wolfssl/wolfcrypt/blake2.h>
#endif
#ifdef HAVE_FIPS
/* for fips */
#include <cyassl/ctaocrypt/hmac.h>
#endif
#ifdef HAVE_CAVIUM
#include <wolfssl/wolfcrypt/logging.h>
#include "cavium_common.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifndef HAVE_FIPS
#define WOLFSSL_HMAC_CAVIUM_MAGIC 0xBEEF0005
enum {
HMAC_FIPS_MIN_KEY = 14, /* 112 bit key length minimum */
IPAD = 0x36,
OPAD = 0x5C,
/* If any hash is not enabled, add the ID here. */
#ifdef NO_MD5
MD5 = 0,
#endif
#ifdef NO_SHA
SHA = 1,
#endif
#ifdef NO_SHA256
SHA256 = 2,
#endif
#ifndef WOLFSSL_SHA512
SHA512 = 4,
#endif
#ifndef WOLFSSL_SHA384
SHA384 = 5,
#endif
#ifndef HAVE_BLAKE2
BLAKE2B_ID = 7,
#endif
/* Select the largest available hash for the buffer size. */
#if defined(WOLFSSL_SHA512)
MAX_DIGEST_SIZE = SHA512_DIGEST_SIZE,
HMAC_BLOCK_SIZE = SHA512_BLOCK_SIZE
#elif defined(HAVE_BLAKE2)
MAX_DIGEST_SIZE = BLAKE2B_OUTBYTES,
HMAC_BLOCK_SIZE = BLAKE2B_BLOCKBYTES,
#elif defined(WOLFSSL_SHA384)
MAX_DIGEST_SIZE = SHA384_DIGEST_SIZE,
HMAC_BLOCK_SIZE = SHA384_BLOCK_SIZE
#elif !defined(NO_SHA256)
MAX_DIGEST_SIZE = SHA256_DIGEST_SIZE,
HMAC_BLOCK_SIZE = SHA256_BLOCK_SIZE
#elif !defined(NO_SHA)
MAX_DIGEST_SIZE = SHA_DIGEST_SIZE,
HMAC_BLOCK_SIZE = SHA_BLOCK_SIZE
#elif !defined(NO_MD5)
MAX_DIGEST_SIZE = MD5_DIGEST_SIZE,
HMAC_BLOCK_SIZE = MD5_BLOCK_SIZE
#else
#error "You have to have some kind of hash if you want to use HMAC."
#endif
};
/* hash union */
typedef union {
#ifndef NO_MD5
Md5 md5;
#endif
#ifndef NO_SHA
Sha sha;
#endif
#ifndef NO_SHA256
Sha256 sha256;
#endif
#ifdef WOLFSSL_SHA384
Sha384 sha384;
#endif
#ifdef WOLFSSL_SHA512
Sha512 sha512;
#endif
#ifdef HAVE_BLAKE2
Blake2b blake2b;
#endif
} Hash;
/* Hmac digest */
typedef struct Hmac {
Hash hash;
word32 ipad[HMAC_BLOCK_SIZE / sizeof(word32)]; /* same block size all*/
word32 opad[HMAC_BLOCK_SIZE / sizeof(word32)];
word32 innerHash[MAX_DIGEST_SIZE / sizeof(word32)];
byte macType; /* md5 sha or sha256 */
byte innerHashKeyed; /* keyed flag */
#ifdef HAVE_CAVIUM
word16 keyLen; /* hmac key length */
word16 dataLen;
HashType type; /* hmac key type */
int devId; /* nitrox device id */
word32 magic; /* using cavium magic */
word64 contextHandle; /* nitrox context memory handle */
byte* data; /* buffered input data for one call */
#endif
} Hmac;
#endif /* HAVE_FIPS */
/* does init */
WOLFSSL_API int wc_HmacSetKey(Hmac*, int type, const byte* key, word32 keySz);
WOLFSSL_API int wc_HmacUpdate(Hmac*, const byte*, word32);
WOLFSSL_API int wc_HmacFinal(Hmac*, byte*);
#ifdef HAVE_CAVIUM
WOLFSSL_API int wc_HmacInitCavium(Hmac*, int);
WOLFSSL_API void wc_HmacFreeCavium(Hmac*);
#endif
WOLFSSL_API int wolfSSL_GetHmacMaxSize(void);
#ifdef HAVE_HKDF
WOLFSSL_API int wc_HKDF(int type, const byte* inKey, word32 inKeySz,
const byte* salt, word32 saltSz,
const byte* info, word32 infoSz,
byte* out, word32 outSz);
#endif /* HAVE_HKDF */
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* WOLF_CRYPT_HMAC_H */
#endif /* NO_HMAC */
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