1 /* $OpenBSD: m_md5_sha1.c,v 1.9 2024/04/09 13:52:41 beck 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_local.h"
28
29 struct md5_sha1_ctx {
30 MD5_CTX md5;
31 SHA_CTX sha1;
32 };
33
34 static int
md5_sha1_init(EVP_MD_CTX * ctx)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
md5_sha1_update(EVP_MD_CTX * ctx,const void * data,size_t count)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
md5_sha1_final(EVP_MD_CTX * ctx,unsigned char * out)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 };
84
85 const EVP_MD *
EVP_md5_sha1(void)86 EVP_md5_sha1(void)
87 {
88 return &md5_sha1_md;
89 }
90 LCRYPTO_ALIAS(EVP_md5_sha1);
91