1 /* $OpenBSD: sha.h,v 1.19 2014/07/13 14:13:27 beck Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <stddef.h> 60 61 #ifndef HEADER_SHA_H 62 #define HEADER_SHA_H 63 #if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__OpenBSD__) 64 #define __bounded__(x, y, z) 65 #endif 66 67 #include <openssl/opensslconf.h> 68 69 #ifdef __cplusplus 70 extern "C" { 71 #endif 72 73 #if defined(OPENSSL_NO_SHA) || (defined(OPENSSL_NO_SHA0) && defined(OPENSSL_NO_SHA1)) 74 #error SHA is disabled. 75 #endif 76 77 /* 78 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 79 * ! SHA_LONG has to be at least 32 bits wide. If it's wider, then ! 80 * ! SHA_LONG_LOG2 has to be defined along. ! 81 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 82 */ 83 84 #define SHA_LONG unsigned int 85 86 #define SHA_LBLOCK 16 87 #define SHA_CBLOCK (SHA_LBLOCK*4) /* SHA treats input data as a 88 * contiguous array of 32 bit 89 * wide big-endian values. */ 90 #define SHA_LAST_BLOCK (SHA_CBLOCK-8) 91 #define SHA_DIGEST_LENGTH 20 92 93 typedef struct SHAstate_st 94 { 95 SHA_LONG h0,h1,h2,h3,h4; 96 SHA_LONG Nl,Nh; 97 SHA_LONG data[SHA_LBLOCK]; 98 unsigned int num; 99 } SHA_CTX; 100 101 #ifndef OPENSSL_NO_SHA0 102 int SHA_Init(SHA_CTX *c); 103 int SHA_Update(SHA_CTX *c, const void *data, size_t len) 104 __attribute__ ((__bounded__(__buffer__,2,3))); 105 int SHA_Final(unsigned char *md, SHA_CTX *c); 106 unsigned char *SHA(const unsigned char *d, size_t n, unsigned char *md) 107 __attribute__ ((__bounded__(__buffer__,1,2))); 108 void SHA_Transform(SHA_CTX *c, const unsigned char *data); 109 #endif 110 #ifndef OPENSSL_NO_SHA1 111 int SHA1_Init(SHA_CTX *c); 112 int SHA1_Update(SHA_CTX *c, const void *data, size_t len) 113 __attribute__ ((__bounded__(__buffer__,2,3))); 114 int SHA1_Final(unsigned char *md, SHA_CTX *c); 115 unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md) 116 __attribute__ ((__bounded__(__buffer__,1,2))); 117 void SHA1_Transform(SHA_CTX *c, const unsigned char *data); 118 #endif 119 120 #define SHA256_CBLOCK (SHA_LBLOCK*4) /* SHA-256 treats input data as a 121 * contiguous array of 32 bit 122 * wide big-endian values. */ 123 #define SHA224_DIGEST_LENGTH 28 124 #define SHA256_DIGEST_LENGTH 32 125 126 typedef struct SHA256state_st 127 { 128 SHA_LONG h[8]; 129 SHA_LONG Nl,Nh; 130 SHA_LONG data[SHA_LBLOCK]; 131 unsigned int num,md_len; 132 } SHA256_CTX; 133 134 #ifndef OPENSSL_NO_SHA256 135 int SHA224_Init(SHA256_CTX *c); 136 int SHA224_Update(SHA256_CTX *c, const void *data, size_t len) 137 __attribute__ ((__bounded__(__buffer__,2,3))); 138 int SHA224_Final(unsigned char *md, SHA256_CTX *c); 139 unsigned char *SHA224(const unsigned char *d, size_t n,unsigned char *md) 140 __attribute__ ((__bounded__(__buffer__,1,2))); 141 int SHA256_Init(SHA256_CTX *c); 142 int SHA256_Update(SHA256_CTX *c, const void *data, size_t len) 143 __attribute__ ((__bounded__(__buffer__,2,3))); 144 int SHA256_Final(unsigned char *md, SHA256_CTX *c); 145 unsigned char *SHA256(const unsigned char *d, size_t n,unsigned char *md) 146 __attribute__ ((__bounded__(__buffer__,1,2))); 147 void SHA256_Transform(SHA256_CTX *c, const unsigned char *data); 148 #endif 149 150 #define SHA384_DIGEST_LENGTH 48 151 #define SHA512_DIGEST_LENGTH 64 152 153 #ifndef OPENSSL_NO_SHA512 154 /* 155 * Unlike 32-bit digest algorithms, SHA-512 *relies* on SHA_LONG64 156 * being exactly 64-bit wide. See Implementation Notes in sha512.c 157 * for further details. 158 */ 159 #define SHA512_CBLOCK (SHA_LBLOCK*8) /* SHA-512 treats input data as a 160 * contiguous array of 64 bit 161 * wide big-endian values. */ 162 #if defined(_LP64) 163 #define SHA_LONG64 unsigned long 164 #define U64(C) C##UL 165 #else 166 #define SHA_LONG64 unsigned long long 167 #define U64(C) C##ULL 168 #endif 169 170 typedef struct SHA512state_st 171 { 172 SHA_LONG64 h[8]; 173 SHA_LONG64 Nl,Nh; 174 union { 175 SHA_LONG64 d[SHA_LBLOCK]; 176 unsigned char p[SHA512_CBLOCK]; 177 } u; 178 unsigned int num,md_len; 179 } SHA512_CTX; 180 #endif 181 182 #ifndef OPENSSL_NO_SHA512 183 int SHA384_Init(SHA512_CTX *c); 184 int SHA384_Update(SHA512_CTX *c, const void *data, size_t len) 185 __attribute__ ((__bounded__(__buffer__,2,3))); 186 int SHA384_Final(unsigned char *md, SHA512_CTX *c); 187 unsigned char *SHA384(const unsigned char *d, size_t n,unsigned char *md) 188 __attribute__ ((__bounded__(__buffer__,1,2))); 189 int SHA512_Init(SHA512_CTX *c); 190 int SHA512_Update(SHA512_CTX *c, const void *data, size_t len) 191 __attribute__ ((__bounded__(__buffer__,2,3))); 192 int SHA512_Final(unsigned char *md, SHA512_CTX *c); 193 unsigned char *SHA512(const unsigned char *d, size_t n,unsigned char *md) 194 __attribute__ ((__bounded__(__buffer__,1,2))); 195 void SHA512_Transform(SHA512_CTX *c, const unsigned char *data); 196 #endif 197 198 #ifdef __cplusplus 199 } 200 #endif 201 202 #endif 203