1 /* crypto/evp/m_sha1.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
60 #include "internal/cryptlib.h"
62 #include <openssl/evp.h>
63 #include <openssl/objects.h>
64 #include <openssl/sha.h>
65 #ifndef OPENSSL_NO_RSA
66 # include <openssl/rsa.h>
68 #include "internal/evp_int.h"
70 static int init(EVP_MD_CTX *ctx)
72 return SHA1_Init(EVP_MD_CTX_md_data(ctx));
75 static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
77 return SHA1_Update(EVP_MD_CTX_md_data(ctx), data, count);
80 static int final(EVP_MD_CTX *ctx, unsigned char *md)
82 return SHA1_Final(md, EVP_MD_CTX_md_data(ctx));
85 static int ctrl(EVP_MD_CTX *ctx, int cmd, int mslen, void *ms)
87 unsigned char padtmp[40];
88 unsigned char sha1tmp[SHA_DIGEST_LENGTH];
90 SHA_CTX *sha1 = EVP_MD_CTX_md_data(ctx);
92 if (cmd != EVP_CTRL_SSL3_MASTER_SECRET)
95 /* SSLv3 client auth handling: see RFC-6101 5.6.8 */
99 /* At this point hash contains all handshake messages, update
100 * with master secret and pad_1.
103 if (SHA1_Update(sha1, ms, mslen) <= 0)
106 /* Set padtmp to pad_1 value */
107 memset(padtmp, 0x36, sizeof(padtmp));
109 if (!SHA1_Update(sha1, padtmp, sizeof(padtmp)))
112 if (!SHA1_Final(sha1tmp, sha1))
115 /* Reinitialise context */
117 if (!SHA1_Init(sha1))
120 if (SHA1_Update(sha1, ms, mslen) <= 0)
123 /* Set padtmp to pad_2 value */
124 memset(padtmp, 0x5c, sizeof(padtmp));
126 if (!SHA1_Update(sha1, padtmp, sizeof(padtmp)))
129 if (!SHA1_Update(sha1, sha1tmp, sizeof(sha1tmp)))
132 /* Now when ctx is finalised it will return the SSL v3 hash value */
133 OPENSSL_cleanse(sha1tmp, sizeof(sha1tmp));
139 static const EVP_MD sha1_md = {
141 NID_sha1WithRSAEncryption,
143 EVP_MD_FLAG_DIGALGID_ABSENT,
150 sizeof(EVP_MD *) + sizeof(SHA_CTX),
154 const EVP_MD *EVP_sha1(void)
159 static int init224(EVP_MD_CTX *ctx)
161 return SHA224_Init(EVP_MD_CTX_md_data(ctx));
164 static int init256(EVP_MD_CTX *ctx)
166 return SHA256_Init(EVP_MD_CTX_md_data(ctx));
170 * Even though there're separate SHA224_[Update|Final], we call
171 * SHA256 functions even in SHA224 context. This is what happens
172 * there anyway, so we can spare few CPU cycles:-)
174 static int update256(EVP_MD_CTX *ctx, const void *data, size_t count)
176 return SHA256_Update(EVP_MD_CTX_md_data(ctx), data, count);
179 static int final256(EVP_MD_CTX *ctx, unsigned char *md)
181 return SHA256_Final(md, EVP_MD_CTX_md_data(ctx));
184 static const EVP_MD sha224_md = {
186 NID_sha224WithRSAEncryption,
187 SHA224_DIGEST_LENGTH,
188 EVP_MD_FLAG_DIGALGID_ABSENT,
195 sizeof(EVP_MD *) + sizeof(SHA256_CTX),
198 const EVP_MD *EVP_sha224(void)
203 static const EVP_MD sha256_md = {
205 NID_sha256WithRSAEncryption,
206 SHA256_DIGEST_LENGTH,
207 EVP_MD_FLAG_DIGALGID_ABSENT,
214 sizeof(EVP_MD *) + sizeof(SHA256_CTX),
217 const EVP_MD *EVP_sha256(void)
222 static int init384(EVP_MD_CTX *ctx)
224 return SHA384_Init(EVP_MD_CTX_md_data(ctx));
227 static int init512(EVP_MD_CTX *ctx)
229 return SHA512_Init(EVP_MD_CTX_md_data(ctx));
232 /* See comment in SHA224/256 section */
233 static int update512(EVP_MD_CTX *ctx, const void *data, size_t count)
235 return SHA512_Update(EVP_MD_CTX_md_data(ctx), data, count);
238 static int final512(EVP_MD_CTX *ctx, unsigned char *md)
240 return SHA512_Final(md, EVP_MD_CTX_md_data(ctx));
243 static const EVP_MD sha384_md = {
245 NID_sha384WithRSAEncryption,
246 SHA384_DIGEST_LENGTH,
247 EVP_MD_FLAG_DIGALGID_ABSENT,
254 sizeof(EVP_MD *) + sizeof(SHA512_CTX),
257 const EVP_MD *EVP_sha384(void)
262 static const EVP_MD sha512_md = {
264 NID_sha512WithRSAEncryption,
265 SHA512_DIGEST_LENGTH,
266 EVP_MD_FLAG_DIGALGID_ABSENT,
273 sizeof(EVP_MD *) + sizeof(SHA512_CTX),
276 const EVP_MD *EVP_sha512(void)