1 /* $OpenBSD: m_sha1.c,v 1.19 2022/01/14 08:38:06 tb 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 <stdio.h> 60 61 #include <openssl/opensslconf.h> 62 63 #ifndef OPENSSL_NO_SHA 64 65 #include <openssl/evp.h> 66 #include <openssl/objects.h> 67 #include <openssl/sha.h> 68 69 #ifndef OPENSSL_NO_RSA 70 #include <openssl/rsa.h> 71 #endif 72 73 #include "evp_locl.h" 74 75 static int 76 init(EVP_MD_CTX *ctx) 77 { 78 return SHA1_Init(ctx->md_data); 79 } 80 81 static int 82 update(EVP_MD_CTX *ctx, const void *data, size_t count) 83 { 84 return SHA1_Update(ctx->md_data, data, count); 85 } 86 87 static int 88 final(EVP_MD_CTX *ctx, unsigned char *md) 89 { 90 return SHA1_Final(md, ctx->md_data); 91 } 92 93 static const EVP_MD sha1_md = { 94 .type = NID_sha1, 95 .pkey_type = NID_sha1WithRSAEncryption, 96 .md_size = SHA_DIGEST_LENGTH, 97 .flags = EVP_MD_FLAG_DIGALGID_ABSENT, 98 .init = init, 99 .update = update, 100 .final = final, 101 .copy = NULL, 102 .cleanup = NULL, 103 .block_size = SHA_CBLOCK, 104 .ctx_size = sizeof(EVP_MD *) + sizeof(SHA_CTX), 105 }; 106 107 const EVP_MD * 108 EVP_sha1(void) 109 { 110 return (&sha1_md); 111 } 112 #endif 113 114 #ifndef OPENSSL_NO_SHA256 115 static int 116 init224(EVP_MD_CTX *ctx) 117 { 118 return SHA224_Init(ctx->md_data); 119 } 120 121 static int 122 init256(EVP_MD_CTX *ctx) 123 { 124 return SHA256_Init(ctx->md_data); 125 } 126 /* 127 * Even though there're separate SHA224_[Update|Final], we call 128 * SHA256 functions even in SHA224 context. This is what happens 129 * there anyway, so we can spare few CPU cycles:-) 130 */ 131 static int 132 update256(EVP_MD_CTX *ctx, const void *data, size_t count) 133 { 134 return SHA256_Update(ctx->md_data, data, count); 135 } 136 137 static int 138 final256(EVP_MD_CTX *ctx, unsigned char *md) 139 { 140 return SHA256_Final(md, ctx->md_data); 141 } 142 143 static const EVP_MD sha224_md = { 144 .type = NID_sha224, 145 .pkey_type = NID_sha224WithRSAEncryption, 146 .md_size = SHA224_DIGEST_LENGTH, 147 .flags = EVP_MD_FLAG_DIGALGID_ABSENT, 148 .init = init224, 149 .update = update256, 150 .final = final256, 151 .copy = NULL, 152 .cleanup = NULL, 153 .block_size = SHA256_CBLOCK, 154 .ctx_size = sizeof(EVP_MD *) + sizeof(SHA256_CTX), 155 }; 156 157 const EVP_MD * 158 EVP_sha224(void) 159 { 160 return (&sha224_md); 161 } 162 163 static const EVP_MD sha256_md = { 164 .type = NID_sha256, 165 .pkey_type = NID_sha256WithRSAEncryption, 166 .md_size = SHA256_DIGEST_LENGTH, 167 .flags = EVP_MD_FLAG_DIGALGID_ABSENT, 168 .init = init256, 169 .update = update256, 170 .final = final256, 171 .copy = NULL, 172 .cleanup = NULL, 173 .block_size = SHA256_CBLOCK, 174 .ctx_size = sizeof(EVP_MD *) + sizeof(SHA256_CTX), 175 }; 176 177 const EVP_MD * 178 EVP_sha256(void) 179 { 180 return (&sha256_md); 181 } 182 #endif /* ifndef OPENSSL_NO_SHA256 */ 183 184 #ifndef OPENSSL_NO_SHA512 185 static int 186 init384(EVP_MD_CTX *ctx) 187 { 188 return SHA384_Init(ctx->md_data); 189 } 190 191 static int 192 init512(EVP_MD_CTX *ctx) 193 { 194 return SHA512_Init(ctx->md_data); 195 } 196 /* See comment in SHA224/256 section */ 197 static int 198 update512(EVP_MD_CTX *ctx, const void *data, size_t count) 199 { 200 return SHA512_Update(ctx->md_data, data, count); 201 } 202 203 static int 204 final512(EVP_MD_CTX *ctx, unsigned char *md) 205 { 206 return SHA512_Final(md, ctx->md_data); 207 } 208 209 static const EVP_MD sha384_md = { 210 .type = NID_sha384, 211 .pkey_type = NID_sha384WithRSAEncryption, 212 .md_size = SHA384_DIGEST_LENGTH, 213 .flags = EVP_MD_FLAG_DIGALGID_ABSENT, 214 .init = init384, 215 .update = update512, 216 .final = final512, 217 .copy = NULL, 218 .cleanup = NULL, 219 .block_size = SHA512_CBLOCK, 220 .ctx_size = sizeof(EVP_MD *) + sizeof(SHA512_CTX), 221 }; 222 223 const EVP_MD * 224 EVP_sha384(void) 225 { 226 return (&sha384_md); 227 } 228 229 static const EVP_MD sha512_md = { 230 .type = NID_sha512, 231 .pkey_type = NID_sha512WithRSAEncryption, 232 .md_size = SHA512_DIGEST_LENGTH, 233 .flags = EVP_MD_FLAG_DIGALGID_ABSENT, 234 .init = init512, 235 .update = update512, 236 .final = final512, 237 .copy = NULL, 238 .cleanup = NULL, 239 .block_size = SHA512_CBLOCK, 240 .ctx_size = sizeof(EVP_MD *) + sizeof(SHA512_CTX), 241 }; 242 243 const EVP_MD * 244 EVP_sha512(void) 245 { 246 return (&sha512_md); 247 } 248 #endif /* ifndef OPENSSL_NO_SHA512 */ 249