Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 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 | #include <openssl/digest.h> |
| 58 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 59 | #include <assert.h> |
| 60 | #include <string.h> |
| 61 | |
Steven Valdez | b0b45c6 | 2017-01-17 16:23:54 -0500 | [diff] [blame] | 62 | #include <openssl/asn1.h> |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 63 | #include <openssl/md4.h> |
| 64 | #include <openssl/md5.h> |
Steven Valdez | b0b45c6 | 2017-01-17 16:23:54 -0500 | [diff] [blame] | 65 | #include <openssl/nid.h> |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 66 | #include <openssl/sha.h> |
| 67 | |
| 68 | #include "internal.h" |
Robert Sloan | 69939df | 2017-01-09 10:53:07 -0800 | [diff] [blame] | 69 | #include "../internal.h" |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 70 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 71 | #if defined(NDEBUG) |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 72 | #define CHECK(x) (void) (x) |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 73 | #else |
| 74 | #define CHECK(x) assert(x) |
| 75 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 76 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 77 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 78 | static void md4_init(EVP_MD_CTX *ctx) { |
| 79 | CHECK(MD4_Init(ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 80 | } |
| 81 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 82 | static void md4_update(EVP_MD_CTX *ctx, const void *data, size_t count) { |
| 83 | CHECK(MD4_Update(ctx->md_data, data, count)); |
| 84 | } |
| 85 | |
| 86 | static void md4_final(EVP_MD_CTX *ctx, uint8_t *out) { |
| 87 | CHECK(MD4_Final(out, ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | static const EVP_MD md4_md = { |
| 91 | NID_md4, MD4_DIGEST_LENGTH, 0 /* flags */, md4_init, |
| 92 | md4_update, md4_final, 64 /* block size */, sizeof(MD4_CTX), |
| 93 | }; |
| 94 | |
| 95 | const EVP_MD *EVP_md4(void) { return &md4_md; } |
| 96 | |
| 97 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 98 | static void md5_init(EVP_MD_CTX *ctx) { |
| 99 | CHECK(MD5_Init(ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 100 | } |
| 101 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 102 | static void md5_update(EVP_MD_CTX *ctx, const void *data, size_t count) { |
| 103 | CHECK(MD5_Update(ctx->md_data, data, count)); |
| 104 | } |
| 105 | |
| 106 | static void md5_final(EVP_MD_CTX *ctx, uint8_t *out) { |
| 107 | CHECK(MD5_Final(out, ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | static const EVP_MD md5_md = { |
| 111 | NID_md5, MD5_DIGEST_LENGTH, 0 /* flags */, md5_init, |
| 112 | md5_update, md5_final, 64 /* block size */, sizeof(MD5_CTX), |
| 113 | }; |
| 114 | |
| 115 | const EVP_MD *EVP_md5(void) { return &md5_md; } |
| 116 | |
| 117 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 118 | static void sha1_init(EVP_MD_CTX *ctx) { |
| 119 | CHECK(SHA1_Init(ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 120 | } |
| 121 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 122 | static void sha1_update(EVP_MD_CTX *ctx, const void *data, size_t count) { |
| 123 | CHECK(SHA1_Update(ctx->md_data, data, count)); |
| 124 | } |
| 125 | |
| 126 | static void sha1_final(EVP_MD_CTX *ctx, uint8_t *md) { |
| 127 | CHECK(SHA1_Final(md, ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 128 | } |
| 129 | |
| 130 | static const EVP_MD sha1_md = { |
| 131 | NID_sha1, SHA_DIGEST_LENGTH, 0 /* flags */, sha1_init, |
| 132 | sha1_update, sha1_final, 64 /* block size */, sizeof(SHA_CTX), |
| 133 | }; |
| 134 | |
| 135 | const EVP_MD *EVP_sha1(void) { return &sha1_md; } |
| 136 | |
| 137 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 138 | static void sha224_init(EVP_MD_CTX *ctx) { |
| 139 | CHECK(SHA224_Init(ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 140 | } |
| 141 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 142 | static void sha224_update(EVP_MD_CTX *ctx, const void *data, size_t count) { |
| 143 | CHECK(SHA224_Update(ctx->md_data, data, count)); |
| 144 | } |
| 145 | |
| 146 | static void sha224_final(EVP_MD_CTX *ctx, uint8_t *md) { |
| 147 | CHECK(SHA224_Final(md, ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 148 | } |
| 149 | |
| 150 | static const EVP_MD sha224_md = { |
| 151 | NID_sha224, SHA224_DIGEST_LENGTH, 0 /* flags */, |
| 152 | sha224_init, sha224_update, sha224_final, |
| 153 | 64 /* block size */, sizeof(SHA256_CTX), |
| 154 | }; |
| 155 | |
| 156 | const EVP_MD *EVP_sha224(void) { return &sha224_md; } |
| 157 | |
| 158 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 159 | static void sha256_init(EVP_MD_CTX *ctx) { |
| 160 | CHECK(SHA256_Init(ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 161 | } |
| 162 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 163 | static void sha256_update(EVP_MD_CTX *ctx, const void *data, size_t count) { |
| 164 | CHECK(SHA256_Update(ctx->md_data, data, count)); |
| 165 | } |
| 166 | |
| 167 | static void sha256_final(EVP_MD_CTX *ctx, uint8_t *md) { |
| 168 | CHECK(SHA256_Final(md, ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 169 | } |
| 170 | |
| 171 | static const EVP_MD sha256_md = { |
| 172 | NID_sha256, SHA256_DIGEST_LENGTH, 0 /* flags */, |
| 173 | sha256_init, sha256_update, sha256_final, |
| 174 | 64 /* block size */, sizeof(SHA256_CTX), |
| 175 | }; |
| 176 | |
| 177 | const EVP_MD *EVP_sha256(void) { return &sha256_md; } |
| 178 | |
| 179 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 180 | static void sha384_init(EVP_MD_CTX *ctx) { |
| 181 | CHECK(SHA384_Init(ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 182 | } |
| 183 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 184 | static void sha384_update(EVP_MD_CTX *ctx, const void *data, size_t count) { |
| 185 | CHECK(SHA384_Update(ctx->md_data, data, count)); |
| 186 | } |
| 187 | |
| 188 | static void sha384_final(EVP_MD_CTX *ctx, uint8_t *md) { |
| 189 | CHECK(SHA384_Final(md, ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | static const EVP_MD sha384_md = { |
| 193 | NID_sha384, SHA384_DIGEST_LENGTH, 0 /* flags */, |
| 194 | sha384_init, sha384_update, sha384_final, |
| 195 | 128 /* block size */, sizeof(SHA512_CTX), |
| 196 | }; |
| 197 | |
| 198 | const EVP_MD *EVP_sha384(void) { return &sha384_md; } |
| 199 | |
| 200 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 201 | static void sha512_init(EVP_MD_CTX *ctx) { |
| 202 | CHECK(SHA512_Init(ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 203 | } |
| 204 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 205 | static void sha512_update(EVP_MD_CTX *ctx, const void *data, size_t count) { |
| 206 | CHECK(SHA512_Update(ctx->md_data, data, count)); |
| 207 | } |
| 208 | |
| 209 | static void sha512_final(EVP_MD_CTX *ctx, uint8_t *md) { |
| 210 | CHECK(SHA512_Final(md, ctx->md_data)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 211 | } |
| 212 | |
| 213 | static const EVP_MD sha512_md = { |
| 214 | NID_sha512, SHA512_DIGEST_LENGTH, 0 /* flags */, |
| 215 | sha512_init, sha512_update, sha512_final, |
| 216 | 128 /* block size */, sizeof(SHA512_CTX), |
| 217 | }; |
| 218 | |
| 219 | const EVP_MD *EVP_sha512(void) { return &sha512_md; } |
| 220 | |
| 221 | |
| 222 | typedef struct { |
| 223 | MD5_CTX md5; |
| 224 | SHA_CTX sha1; |
| 225 | } MD5_SHA1_CTX; |
| 226 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 227 | static void md5_sha1_init(EVP_MD_CTX *md_ctx) { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 228 | MD5_SHA1_CTX *ctx = md_ctx->md_data; |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 229 | CHECK(MD5_Init(&ctx->md5) && SHA1_Init(&ctx->sha1)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 230 | } |
| 231 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 232 | static void md5_sha1_update(EVP_MD_CTX *md_ctx, const void *data, |
| 233 | size_t count) { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 234 | MD5_SHA1_CTX *ctx = md_ctx->md_data; |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 235 | CHECK(MD5_Update(&ctx->md5, data, count) && |
| 236 | SHA1_Update(&ctx->sha1, data, count)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 237 | } |
| 238 | |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 239 | static void md5_sha1_final(EVP_MD_CTX *md_ctx, uint8_t *out) { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 240 | MD5_SHA1_CTX *ctx = md_ctx->md_data; |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 241 | CHECK(MD5_Final(out, &ctx->md5) && |
| 242 | SHA1_Final(out + MD5_DIGEST_LENGTH, &ctx->sha1)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 243 | } |
| 244 | |
| 245 | static const EVP_MD md5_sha1_md = { |
| 246 | NID_md5_sha1, |
| 247 | MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH, |
| 248 | 0 /* flags */, |
| 249 | md5_sha1_init, |
| 250 | md5_sha1_update, |
| 251 | md5_sha1_final, |
| 252 | 64 /* block size */, |
| 253 | sizeof(MD5_SHA1_CTX), |
| 254 | }; |
| 255 | |
| 256 | const EVP_MD *EVP_md5_sha1(void) { return &md5_sha1_md; } |
| 257 | |
| 258 | |
| 259 | struct nid_to_digest { |
| 260 | int nid; |
| 261 | const EVP_MD* (*md_func)(void); |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 262 | const char *short_name; |
| 263 | const char *long_name; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 264 | }; |
| 265 | |
| 266 | static const struct nid_to_digest nid_to_digest_mapping[] = { |
Robert Sloan | 69939df | 2017-01-09 10:53:07 -0800 | [diff] [blame] | 267 | {NID_md4, EVP_md4, SN_md4, LN_md4}, |
| 268 | {NID_md5, EVP_md5, SN_md5, LN_md5}, |
| 269 | {NID_sha1, EVP_sha1, SN_sha1, LN_sha1}, |
| 270 | {NID_sha224, EVP_sha224, SN_sha224, LN_sha224}, |
| 271 | {NID_sha256, EVP_sha256, SN_sha256, LN_sha256}, |
| 272 | {NID_sha384, EVP_sha384, SN_sha384, LN_sha384}, |
| 273 | {NID_sha512, EVP_sha512, SN_sha512, LN_sha512}, |
| 274 | {NID_md5_sha1, EVP_md5_sha1, SN_md5_sha1, LN_md5_sha1}, |
| 275 | /* As a remnant of signing |EVP_MD|s, OpenSSL returned the corresponding |
| 276 | * hash function when given a signature OID. To avoid unintended lax parsing |
| 277 | * of hash OIDs, this is no longer supported for lookup by OID or NID. |
| 278 | * Node.js, however, exposes |EVP_get_digestbyname|'s full behavior to |
| 279 | * consumers so we retain it there. */ |
| 280 | {NID_undef, EVP_sha1, SN_dsaWithSHA, LN_dsaWithSHA}, |
| 281 | {NID_undef, EVP_sha1, SN_dsaWithSHA1, LN_dsaWithSHA1}, |
| 282 | {NID_undef, EVP_sha1, SN_ecdsa_with_SHA1, NULL}, |
| 283 | {NID_undef, EVP_md5, SN_md5WithRSAEncryption, LN_md5WithRSAEncryption}, |
| 284 | {NID_undef, EVP_sha1, SN_sha1WithRSAEncryption, LN_sha1WithRSAEncryption}, |
| 285 | {NID_undef, EVP_sha224, SN_sha224WithRSAEncryption, |
| 286 | LN_sha224WithRSAEncryption}, |
| 287 | {NID_undef, EVP_sha256, SN_sha256WithRSAEncryption, |
| 288 | LN_sha256WithRSAEncryption}, |
| 289 | {NID_undef, EVP_sha384, SN_sha384WithRSAEncryption, |
| 290 | LN_sha384WithRSAEncryption}, |
| 291 | {NID_undef, EVP_sha512, SN_sha512WithRSAEncryption, |
| 292 | LN_sha512WithRSAEncryption}, |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 293 | }; |
| 294 | |
| 295 | const EVP_MD* EVP_get_digestbynid(int nid) { |
Robert Sloan | 69939df | 2017-01-09 10:53:07 -0800 | [diff] [blame] | 296 | if (nid == NID_undef) { |
| 297 | /* Skip the |NID_undef| entries in |nid_to_digest_mapping|. */ |
| 298 | return NULL; |
| 299 | } |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 300 | |
Robert Sloan | 69939df | 2017-01-09 10:53:07 -0800 | [diff] [blame] | 301 | for (unsigned i = 0; i < OPENSSL_ARRAY_SIZE(nid_to_digest_mapping); i++) { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 302 | if (nid_to_digest_mapping[i].nid == nid) { |
| 303 | return nid_to_digest_mapping[i].md_func(); |
| 304 | } |
| 305 | } |
| 306 | |
| 307 | return NULL; |
| 308 | } |
| 309 | |
Steven Valdez | b0b45c6 | 2017-01-17 16:23:54 -0500 | [diff] [blame] | 310 | static const struct { |
| 311 | uint8_t oid[9]; |
| 312 | uint8_t oid_len; |
| 313 | const EVP_MD *(*md_func) (void); |
| 314 | } kMDOIDs[] = { |
| 315 | /* 1.2.840.113549.2.4 */ |
| 316 | { {0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x02, 0x04}, 8, EVP_md4 }, |
| 317 | /* 1.2.840.113549.2.5 */ |
| 318 | { {0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x02, 0x05}, 8, EVP_md5 }, |
| 319 | /* 1.3.14.3.2.26 */ |
| 320 | { {0x2b, 0x0e, 0x03, 0x02, 0x1a}, 5, EVP_sha1 }, |
| 321 | /* 2.16.840.1.101.3.4.2.1 */ |
| 322 | { {0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01}, 9, EVP_sha256 }, |
| 323 | /* 2.16.840.1.101.3.4.2.2 */ |
| 324 | { {0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02}, 9, EVP_sha384 }, |
| 325 | /* 2.16.840.1.101.3.4.2.3 */ |
| 326 | { {0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03}, 9, EVP_sha512 }, |
| 327 | /* 2.16.840.1.101.3.4.2.4 */ |
| 328 | { {0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x04}, 9, EVP_sha224 }, |
| 329 | }; |
| 330 | |
| 331 | const EVP_MD *EVP_get_digestbyobj(const ASN1_OBJECT *obj) { |
Robert Sloan | 47f43ed | 2017-02-06 14:55:15 -0800 | [diff] [blame^] | 332 | /* Handle objects with no corresponding OID. */ |
| 333 | if (obj->nid != NID_undef) { |
| 334 | return EVP_get_digestbynid(obj->nid); |
| 335 | } |
| 336 | |
Steven Valdez | b0b45c6 | 2017-01-17 16:23:54 -0500 | [diff] [blame] | 337 | for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kMDOIDs); i++) { |
| 338 | if (obj->length == kMDOIDs[i].oid_len && |
| 339 | memcmp(obj->data, kMDOIDs[i].oid, obj->length) == 0) { |
| 340 | return kMDOIDs[i].md_func(); |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | return NULL; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 345 | } |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 346 | |
| 347 | const EVP_MD *EVP_get_digestbyname(const char *name) { |
Robert Sloan | 69939df | 2017-01-09 10:53:07 -0800 | [diff] [blame] | 348 | for (unsigned i = 0; i < OPENSSL_ARRAY_SIZE(nid_to_digest_mapping); i++) { |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 349 | const char *short_name = nid_to_digest_mapping[i].short_name; |
| 350 | const char *long_name = nid_to_digest_mapping[i].long_name; |
| 351 | if ((short_name && strcmp(short_name, name) == 0) || |
| 352 | (long_name && strcmp(long_name, name) == 0)) { |
| 353 | return nid_to_digest_mapping[i].md_func(); |
| 354 | } |
| 355 | } |
| 356 | |
| 357 | return NULL; |
| 358 | } |