1 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 2 * All rights reserved. 3 * 4 * This package is an SSL implementation written 5 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 #include <openssl/digest.h> 58 59 #include <openssl/md4.h> 60 #include <openssl/md5.h> 61 #include <openssl/obj.h> 62 #include <openssl/sha.h> 63 64 #include "internal.h" 65 66 67 static int md4_init(EVP_MD_CTX *ctx) { return MD4_Init(ctx->md_data); } 68 69 static int md4_update(EVP_MD_CTX *ctx, const void *data, size_t count) { 70 return MD4_Update(ctx->md_data, data, count); 71 } 72 73 static int md4_final(EVP_MD_CTX *ctx, unsigned char *out) { 74 return MD4_Final(out, ctx->md_data); 75 } 76 77 static const EVP_MD md4_md = { 78 NID_md4, MD4_DIGEST_LENGTH, 0 /* flags */, md4_init, 79 md4_update, md4_final, 64 /* block size */, sizeof(MD4_CTX), 80 }; 81 82 const EVP_MD *EVP_md4(void) { return &md4_md; } 83 84 85 static int md5_init(EVP_MD_CTX *ctx) { return MD5_Init(ctx->md_data); } 86 87 static int md5_update(EVP_MD_CTX *ctx, const void *data, size_t count) { 88 return MD5_Update(ctx->md_data, data, count); 89 } 90 91 static int md5_final(EVP_MD_CTX *ctx, unsigned char *out) { 92 return MD5_Final(out, ctx->md_data); 93 } 94 95 static const EVP_MD md5_md = { 96 NID_md5, MD5_DIGEST_LENGTH, 0 /* flags */, md5_init, 97 md5_update, md5_final, 64 /* block size */, sizeof(MD5_CTX), 98 }; 99 100 const EVP_MD *EVP_md5(void) { return &md5_md; } 101 102 103 static int sha1_init(EVP_MD_CTX *ctx) { return SHA1_Init(ctx->md_data); } 104 105 static int sha1_update(EVP_MD_CTX *ctx, const void *data, size_t count) { 106 return SHA1_Update(ctx->md_data, data, count); 107 } 108 109 static int sha1_final(EVP_MD_CTX *ctx, unsigned char *md) { 110 return SHA1_Final(md, ctx->md_data); 111 } 112 113 static const EVP_MD sha1_md = { 114 NID_sha1, SHA_DIGEST_LENGTH, 0 /* flags */, sha1_init, 115 sha1_update, sha1_final, 64 /* block size */, sizeof(SHA_CTX), 116 }; 117 118 const EVP_MD *EVP_sha1(void) { return &sha1_md; } 119 120 121 static int sha224_init(EVP_MD_CTX *ctx) { return SHA224_Init(ctx->md_data); } 122 123 static int sha224_update(EVP_MD_CTX *ctx, const void *data, size_t count) { 124 return SHA224_Update(ctx->md_data, data, count); 125 } 126 127 static int sha224_final(EVP_MD_CTX *ctx, unsigned char *md) { 128 return SHA224_Final(md, ctx->md_data); 129 } 130 131 static const EVP_MD sha224_md = { 132 NID_sha224, SHA224_DIGEST_LENGTH, 0 /* flags */, 133 sha224_init, sha224_update, sha224_final, 134 64 /* block size */, sizeof(SHA256_CTX), 135 }; 136 137 const EVP_MD *EVP_sha224(void) { return &sha224_md; } 138 139 140 static int sha256_init(EVP_MD_CTX *ctx) { return SHA256_Init(ctx->md_data); } 141 142 static int sha256_update(EVP_MD_CTX *ctx, const void *data, size_t count) { 143 return SHA256_Update(ctx->md_data, data, count); 144 } 145 146 static int sha256_final(EVP_MD_CTX *ctx, unsigned char *md) { 147 return SHA256_Final(md, ctx->md_data); 148 } 149 150 static const EVP_MD sha256_md = { 151 NID_sha256, SHA256_DIGEST_LENGTH, 0 /* flags */, 152 sha256_init, sha256_update, sha256_final, 153 64 /* block size */, sizeof(SHA256_CTX), 154 }; 155 156 const EVP_MD *EVP_sha256(void) { return &sha256_md; } 157 158 159 static int sha384_init(EVP_MD_CTX *ctx) { return SHA384_Init(ctx->md_data); } 160 161 static int sha384_update(EVP_MD_CTX *ctx, const void *data, size_t count) { 162 return SHA384_Update(ctx->md_data, data, count); 163 } 164 165 static int sha384_final(EVP_MD_CTX *ctx, unsigned char *md) { 166 return SHA384_Final(md, ctx->md_data); 167 } 168 169 static const EVP_MD sha384_md = { 170 NID_sha384, SHA384_DIGEST_LENGTH, 0 /* flags */, 171 sha384_init, sha384_update, sha384_final, 172 128 /* block size */, sizeof(SHA512_CTX), 173 }; 174 175 const EVP_MD *EVP_sha384(void) { return &sha384_md; } 176 177 178 static int sha512_init(EVP_MD_CTX *ctx) { return SHA512_Init(ctx->md_data); } 179 180 static int sha512_update(EVP_MD_CTX *ctx, const void *data, size_t count) { 181 return SHA512_Update(ctx->md_data, data, count); 182 } 183 184 static int sha512_final(EVP_MD_CTX *ctx, unsigned char *md) { 185 return SHA512_Final(md, ctx->md_data); 186 } 187 188 static const EVP_MD sha512_md = { 189 NID_sha512, SHA512_DIGEST_LENGTH, 0 /* flags */, 190 sha512_init, sha512_update, sha512_final, 191 128 /* block size */, sizeof(SHA512_CTX), 192 }; 193 194 const EVP_MD *EVP_sha512(void) { return &sha512_md; } 195 196 struct nid_to_digest { 197 int nid; 198 const EVP_MD *(*md_func)(); 199 }; 200 201 static const struct nid_to_digest nid_to_digest_mapping[] = { 202 { NID_md5, EVP_md5 }, 203 { NID_sha1, EVP_sha1 }, 204 { NID_sha224, EVP_sha224 }, 205 { NID_sha256, EVP_sha256 }, 206 { NID_sha384, EVP_sha384 }, 207 { NID_sha512, EVP_sha512 }, 208 { NID_dsaWithSHA, EVP_sha1 }, 209 { NID_dsaWithSHA1, EVP_sha1 }, 210 { NID_ecdsa_with_SHA1, EVP_sha1 }, 211 { NID_md5WithRSAEncryption, EVP_md5 }, 212 { NID_sha1WithRSAEncryption, EVP_sha1 }, 213 { NID_sha224WithRSAEncryption, EVP_sha224 }, 214 { NID_sha256WithRSAEncryption, EVP_sha256 }, 215 { NID_sha384WithRSAEncryption, EVP_sha384 }, 216 { NID_sha512WithRSAEncryption, EVP_sha512 }, 217 }; 218 219 const EVP_MD* EVP_get_digestbynid(int nid) { 220 unsigned i; 221 222 for (i = 0; i < sizeof(nid_to_digest_mapping) / sizeof(struct nid_to_digest); 223 i++) { 224 if (nid_to_digest_mapping[i].nid == nid) { 225 return nid_to_digest_mapping[i].md_func(); 226 } 227 } 228 229 return NULL; 230 } 231 232 const EVP_MD* EVP_get_digestbyobj(const ASN1_OBJECT *obj) { 233 return EVP_get_digestbynid(OBJ_obj2nid(obj)); 234 } 235
