1/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 2 * All rights reserved. 3 * 4 * This package is an SSL implementation written 5 * by Eric Young (eay@cryptsoft.com). 6 * The implementation was written so as to conform with Netscapes SSL. 7 * 8 * This library is free for commercial and non-commercial use as long as 9 * the following conditions are aheared to. The following conditions 10 * apply to all code found in this distribution, be it the RC4, RSA, 11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 12 * included with this distribution is covered by the same copyright terms 13 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 14 * 15 * Copyright remains Eric Young's, and as such any Copyright notices in 16 * the code are not to be removed. 17 * If this package is used in a product, Eric Young should be given attribution 18 * as the author of the parts of the library used. 19 * This can be in the form of a textual message at program startup or 20 * in documentation (online or textual) provided with the package. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. All advertising materials mentioning features or use of this software 31 * must display the following acknowledgement: 32 * "This product includes cryptographic software written by 33 * Eric Young (eay@cryptsoft.com)" 34 * The word 'cryptographic' can be left out if the rouines from the library 35 * being used are not cryptographic related :-). 36 * 4. If you include any Windows specific code (or a derivative thereof) from 37 * the apps directory (application code) you must include an acknowledgement: 38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 50 * SUCH DAMAGE. 51 * 52 * The licence and distribution terms for any publically available version or 53 * derivative of this code cannot be changed. i.e. this code cannot simply be 54 * copied and put under another distribution licence 55 * [including the GNU Public Licence.] */ 56 57#ifndef OPENSSL_HEADER_SHA_H 58#define OPENSSL_HEADER_SHA_H 59 60#include <openssl/base.h> 61 62#if defined(__cplusplus) 63extern "C" { 64#endif 65 66 67/* SHA-1. */ 68 69 70/* SHA_CBLOCK is the block size of SHA-1. */ 71#define SHA_CBLOCK 64 72 73/* SHA_DIGEST_LENGTH is the length of a SHA-1 digest. */ 74#define SHA_DIGEST_LENGTH 20 75 76/* TODO(fork): remove */ 77#define SHA_LBLOCK 16 78#define SHA_LONG uint32_t 79 80/* SHA1_Init initialises |sha| and returns one. */ 81OPENSSL_EXPORT int SHA1_Init(SHA_CTX *sha); 82 83/* SHA1_Update adds |len| bytes from |data| to |sha| and returns one. */ 84OPENSSL_EXPORT int SHA1_Update(SHA_CTX *sha, const void *data, size_t len); 85 86/* SHA1_Final adds the final padding to |sha| and writes the resulting digest 87 * to |md|, which must have at least |SHA_DIGEST_LENGTH| bytes of space. It 88 * returns one. */ 89OPENSSL_EXPORT int SHA1_Final(uint8_t *md, SHA_CTX *sha); 90 91/* SHA1 writes the digest of |len| bytes from |data| to |out| and returns 92 * |out|. There must be at least |SHA_DIGEST_LENGTH| bytes of space in 93 * |out|. */ 94OPENSSL_EXPORT uint8_t *SHA1(const uint8_t *data, size_t len, uint8_t *out); 95 96/* SHA1_Transform is a low-level function that performs a single, SHA-1 block 97 * transformation using the state from |sha| and 64 bytes from |block|. */ 98OPENSSL_EXPORT void SHA1_Transform(SHA_CTX *sha, const uint8_t *block); 99 100struct sha_state_st { 101 uint32_t h0, h1, h2, h3, h4; 102 uint32_t Nl, Nh; 103 uint32_t data[16]; 104 unsigned int num; 105}; 106 107 108/* SHA-224. */ 109 110/* SHA224_CBLOCK is the block size of SHA-224. */ 111#define SHA224_CBLOCK 64 112 113/* SHA224_DIGEST_LENGTH is the length of a SHA-224 digest. */ 114#define SHA224_DIGEST_LENGTH 28 115 116/* SHA224_Init initialises |sha| and returns 1. */ 117OPENSSL_EXPORT int SHA224_Init(SHA256_CTX *sha); 118 119/* SHA224_Update adds |len| bytes from |data| to |sha|. */ 120OPENSSL_EXPORT int SHA224_Update(SHA256_CTX *sha, const void *data, size_t len); 121 122/* SHA224_Final adds the final padding to |sha| and writes the resulting digest 123 * to |md|, which must have at least |SHA_DIGEST_LENGTH| bytes of space. */ 124OPENSSL_EXPORT int SHA224_Final(uint8_t *md, SHA256_CTX *sha); 125 126/* SHA224 writes the digest of |len| bytes from |data| to |out| and returns 127 * |out|. There must be at least |SHA_DIGEST_LENGTH| bytes of space in 128 * |out|. */ 129OPENSSL_EXPORT uint8_t *SHA224(const uint8_t *data, size_t len, uint8_t *out); 130 131 132/* SHA-256. */ 133 134/* SHA256_CBLOCK is the block size of SHA-256. */ 135#define SHA256_CBLOCK 64 136 137/* SHA256_DIGEST_LENGTH is the length of a SHA-256 digest. */ 138#define SHA256_DIGEST_LENGTH 32 139 140/* SHA256_Init initialises |sha| and returns 1. */ 141OPENSSL_EXPORT int SHA256_Init(SHA256_CTX *sha); 142 143/* SHA256_Update adds |len| bytes from |data| to |sha|. */ 144OPENSSL_EXPORT int SHA256_Update(SHA256_CTX *sha, const void *data, size_t len); 145 146/* SHA256_Final adds the final padding to |sha| and writes the resulting digest 147 * to |md|, which must have at least |SHA_DIGEST_LENGTH| bytes of space. */ 148OPENSSL_EXPORT int SHA256_Final(uint8_t *md, SHA256_CTX *sha); 149 150/* SHA256 writes the digest of |len| bytes from |data| to |out| and returns 151 * |out|. There must be at least |SHA_DIGEST_LENGTH| bytes of space in 152 * |out|. */ 153OPENSSL_EXPORT uint8_t *SHA256(const uint8_t *data, size_t len, uint8_t *out); 154 155/* SHA256_Transform is a low-level function that performs a single, SHA-1 block 156 * transformation using the state from |sha| and 64 bytes from |block|. */ 157OPENSSL_EXPORT void SHA256_Transform(SHA256_CTX *sha, const uint8_t *data); 158 159struct sha256_state_st { 160 uint32_t h[8]; 161 uint32_t Nl, Nh; 162 uint32_t data[16]; 163 unsigned int num, md_len; 164}; 165 166 167/* SHA-384. */ 168 169/* SHA384_CBLOCK is the block size of SHA-384. */ 170#define SHA384_CBLOCK 128 171 172/* SHA384_DIGEST_LENGTH is the length of a SHA-384 digest. */ 173#define SHA384_DIGEST_LENGTH 48 174 175/* SHA384_Init initialises |sha| and returns 1. */ 176OPENSSL_EXPORT int SHA384_Init(SHA512_CTX *sha); 177 178/* SHA384_Update adds |len| bytes from |data| to |sha|. */ 179OPENSSL_EXPORT int SHA384_Update(SHA512_CTX *sha, const void *data, size_t len); 180 181/* SHA384_Final adds the final padding to |sha| and writes the resulting digest 182 * to |md|, which must have at least |SHA_DIGEST_LENGTH| bytes of space. */ 183OPENSSL_EXPORT int SHA384_Final(uint8_t *md, SHA512_CTX *sha); 184 185/* SHA384 writes the digest of |len| bytes from |data| to |out| and returns 186 * |out|. There must be at least |SHA_DIGEST_LENGTH| bytes of space in 187 * |out|. */ 188OPENSSL_EXPORT uint8_t *SHA384(const uint8_t *data, size_t len, uint8_t *out); 189 190/* SHA384_Transform is a low-level function that performs a single, SHA-1 block 191 * transformation using the state from |sha| and 64 bytes from |block|. */ 192OPENSSL_EXPORT void SHA384_Transform(SHA512_CTX *sha, const uint8_t *data); 193 194 195/* SHA-512. */ 196 197/* SHA512_CBLOCK is the block size of SHA-512. */ 198#define SHA512_CBLOCK 128 199 200/* SHA512_DIGEST_LENGTH is the length of a SHA-512 digest. */ 201#define SHA512_DIGEST_LENGTH 64 202 203/* SHA512_Init initialises |sha| and returns 1. */ 204OPENSSL_EXPORT int SHA512_Init(SHA512_CTX *sha); 205 206/* SHA512_Update adds |len| bytes from |data| to |sha|. */ 207OPENSSL_EXPORT int SHA512_Update(SHA512_CTX *sha, const void *data, size_t len); 208 209/* SHA512_Final adds the final padding to |sha| and writes the resulting digest 210 * to |md|, which must have at least |SHA_DIGEST_LENGTH| bytes of space. */ 211OPENSSL_EXPORT int SHA512_Final(uint8_t *md, SHA512_CTX *sha); 212 213/* SHA512 writes the digest of |len| bytes from |data| to |out| and returns 214 * |out|. There must be at least |SHA_DIGEST_LENGTH| bytes of space in 215 * |out|. */ 216OPENSSL_EXPORT uint8_t *SHA512(const uint8_t *data, size_t len, uint8_t *out); 217 218/* SHA512_Transform is a low-level function that performs a single, SHA-1 block 219 * transformation using the state from |sha| and 64 bytes from |block|. */ 220OPENSSL_EXPORT void SHA512_Transform(SHA512_CTX *sha, const uint8_t *data); 221 222struct sha512_state_st { 223 uint64_t h[8]; 224 uint64_t Nl, Nh; 225 union { 226 uint64_t d[16]; 227 uint8_t p[64]; 228 } u; 229 unsigned int num, md_len; 230}; 231 232 233#if defined(__cplusplus) 234} /* extern C */ 235#endif 236 237#endif /* OPENSSL_HEADER_SHA_H */ 238