1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
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)"
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
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.]
59 #include "internal/cryptlib.h"
61 #include <openssl/evp.h>
62 #include <openssl/objects.h>
63 #include <openssl/sha.h>
64 #ifndef OPENSSL_NO_RSA
65 # include <openssl/rsa.h>
67 #include "internal/evp_int.h"
69 static int init(EVP_MD_CTX *ctx)
71 return SHA1_Init(EVP_MD_CTX_md_data(ctx));
74 static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
76 return SHA1_Update(EVP_MD_CTX_md_data(ctx), data, count);
79 static int final(EVP_MD_CTX *ctx, unsigned char *md)
81 return SHA1_Final(md, EVP_MD_CTX_md_data(ctx));
84 static int ctrl(EVP_MD_CTX *ctx, int cmd, int mslen, void *ms)
86 unsigned char padtmp[40];
87 unsigned char sha1tmp[SHA_DIGEST_LENGTH];
89 SHA_CTX *sha1 = EVP_MD_CTX_md_data(ctx);
91 if (cmd != EVP_CTRL_SSL3_MASTER_SECRET)
94 /* SSLv3 client auth handling: see RFC-6101 5.6.8 */
98 /* At this point hash contains all handshake messages, update
99 * with master secret and pad_1.
102 if (SHA1_Update(sha1, ms, mslen) <= 0)
105 /* Set padtmp to pad_1 value */
106 memset(padtmp, 0x36, sizeof(padtmp));
108 if (!SHA1_Update(sha1, padtmp, sizeof(padtmp)))
111 if (!SHA1_Final(sha1tmp, sha1))
114 /* Reinitialise context */
116 if (!SHA1_Init(sha1))
119 if (SHA1_Update(sha1, ms, mslen) <= 0)
122 /* Set padtmp to pad_2 value */
123 memset(padtmp, 0x5c, sizeof(padtmp));
125 if (!SHA1_Update(sha1, padtmp, sizeof(padtmp)))
128 if (!SHA1_Update(sha1, sha1tmp, sizeof(sha1tmp)))
131 /* Now when ctx is finalised it will return the SSL v3 hash value */
132 OPENSSL_cleanse(sha1tmp, sizeof(sha1tmp));
138 static const EVP_MD sha1_md = {
140 NID_sha1WithRSAEncryption,
142 EVP_MD_FLAG_DIGALGID_ABSENT,
149 sizeof(EVP_MD *) + sizeof(SHA_CTX),
153 const EVP_MD *EVP_sha1(void)
158 static int init224(EVP_MD_CTX *ctx)
160 return SHA224_Init(EVP_MD_CTX_md_data(ctx));
163 static int init256(EVP_MD_CTX *ctx)
165 return SHA256_Init(EVP_MD_CTX_md_data(ctx));
169 * Even though there're separate SHA224_[Update|Final], we call
170 * SHA256 functions even in SHA224 context. This is what happens
171 * there anyway, so we can spare few CPU cycles:-)
173 static int update256(EVP_MD_CTX *ctx, const void *data, size_t count)
175 return SHA256_Update(EVP_MD_CTX_md_data(ctx), data, count);
178 static int final256(EVP_MD_CTX *ctx, unsigned char *md)
180 return SHA256_Final(md, EVP_MD_CTX_md_data(ctx));
183 static const EVP_MD sha224_md = {
185 NID_sha224WithRSAEncryption,
186 SHA224_DIGEST_LENGTH,
187 EVP_MD_FLAG_DIGALGID_ABSENT,
194 sizeof(EVP_MD *) + sizeof(SHA256_CTX),
197 const EVP_MD *EVP_sha224(void)
202 static const EVP_MD sha256_md = {
204 NID_sha256WithRSAEncryption,
205 SHA256_DIGEST_LENGTH,
206 EVP_MD_FLAG_DIGALGID_ABSENT,
213 sizeof(EVP_MD *) + sizeof(SHA256_CTX),
216 const EVP_MD *EVP_sha256(void)
221 static int init384(EVP_MD_CTX *ctx)
223 return SHA384_Init(EVP_MD_CTX_md_data(ctx));
226 static int init512(EVP_MD_CTX *ctx)
228 return SHA512_Init(EVP_MD_CTX_md_data(ctx));
231 /* See comment in SHA224/256 section */
232 static int update512(EVP_MD_CTX *ctx, const void *data, size_t count)
234 return SHA512_Update(EVP_MD_CTX_md_data(ctx), data, count);
237 static int final512(EVP_MD_CTX *ctx, unsigned char *md)
239 return SHA512_Final(md, EVP_MD_CTX_md_data(ctx));
242 static const EVP_MD sha384_md = {
244 NID_sha384WithRSAEncryption,
245 SHA384_DIGEST_LENGTH,
246 EVP_MD_FLAG_DIGALGID_ABSENT,
253 sizeof(EVP_MD *) + sizeof(SHA512_CTX),
256 const EVP_MD *EVP_sha384(void)
261 static const EVP_MD sha512_md = {
263 NID_sha512WithRSAEncryption,
264 SHA512_DIGEST_LENGTH,
265 EVP_MD_FLAG_DIGALGID_ABSENT,
272 sizeof(EVP_MD *) + sizeof(SHA512_CTX),
275 const EVP_MD *EVP_sha512(void)