1 /* $OpenBSD: m_md5_sha1.c,v 1.3 2021/12/12 21:30:13 tb Exp $ */ 2 /* 3 * Copyright (c) 2017 Joel Sing <jsing@openbsd.org> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include <openssl/evp.h> 19 #include <openssl/md5.h> 20 #include <openssl/objects.h> 21 #include <openssl/sha.h> 22 23 #ifndef OPENSSL_NO_RSA 24 #include <openssl/rsa.h> 25 #endif 26 27 #include "evp_locl.h" 28 29 struct md5_sha1_ctx { 30 MD5_CTX md5; 31 SHA_CTX sha1; 32 }; 33 34 static int 35 md5_sha1_init(EVP_MD_CTX *ctx) 36 { 37 struct md5_sha1_ctx *mdctx = ctx->md_data; 38 39 if (!MD5_Init(&mdctx->md5)) 40 return 0; 41 if (!SHA1_Init(&mdctx->sha1)) 42 return 0; 43 44 return 1; 45 } 46 47 static int 48 md5_sha1_update(EVP_MD_CTX *ctx, const void *data, size_t count) 49 { 50 struct md5_sha1_ctx *mdctx = ctx->md_data; 51 52 if (!MD5_Update(&mdctx->md5, data, count)) 53 return 0; 54 if (!SHA1_Update(&mdctx->sha1, data, count)) 55 return 0; 56 57 return 1; 58 } 59 60 static int 61 md5_sha1_final(EVP_MD_CTX *ctx, unsigned char *out) 62 { 63 struct md5_sha1_ctx *mdctx = ctx->md_data; 64 65 if (!MD5_Final(out, &mdctx->md5)) 66 return 0; 67 if (!SHA1_Final(out + MD5_DIGEST_LENGTH, &mdctx->sha1)) 68 return 0; 69 70 return 1; 71 } 72 73 static const EVP_MD md5_sha1_md = { 74 .type = NID_md5_sha1, 75 .pkey_type = NID_md5_sha1, 76 .md_size = MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH, 77 .flags = 0, 78 .init = md5_sha1_init, 79 .update = md5_sha1_update, 80 .final = md5_sha1_final, 81 .block_size = MD5_CBLOCK, /* MD5_CBLOCK == SHA_CBLOCK */ 82 .ctx_size = sizeof(EVP_MD *) + sizeof(struct md5_sha1_ctx), 83 #ifndef OPENSSL_NO_RSA 84 .sign = (evp_sign_method *)RSA_sign, 85 .verify = (evp_verify_method *)RSA_verify, 86 .required_pkey_type = { 87 EVP_PKEY_RSA, EVP_PKEY_RSA2, 0, 0, 88 }, 89 #endif 90 }; 91 92 const EVP_MD * 93 EVP_md5_sha1(void) 94 { 95 return &md5_sha1_md; 96 } 97