m_sha1.c revision 302408 
1/* crypto/evp/m_sha1.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
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.
8 *
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).
15 *
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.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
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)"
40 *
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
51 * SUCH DAMAGE.
52 *
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.]
57 */
58
59#include <stdio.h>
60#include "cryptlib.h"
61
62#ifndef OPENSSL_NO_SHA
63
64# include <openssl/evp.h>
65# include <openssl/objects.h>
66# include <openssl/sha.h>
67# ifndef OPENSSL_NO_RSA
68#  include <openssl/rsa.h>
69# endif
70
71static int init(EVP_MD_CTX *ctx)
72{
73    return SHA1_Init(ctx->md_data);
74}
75
76static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
77{
78    return SHA1_Update(ctx->md_data, data, count);
79}
80
81static int final(EVP_MD_CTX *ctx, unsigned char *md)
82{
83    return SHA1_Final(md, ctx->md_data);
84}
85
86static const EVP_MD sha1_md = {
87    NID_sha1,
88    NID_sha1WithRSAEncryption,
89    SHA_DIGEST_LENGTH,
90    EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
91    init,
92    update,
93    final,
94    NULL,
95    NULL,
96    EVP_PKEY_RSA_method,
97    SHA_CBLOCK,
98    sizeof(EVP_MD *) + sizeof(SHA_CTX),
99};
100
101const EVP_MD *EVP_sha1(void)
102{
103    return (&sha1_md);
104}
105#endif
106
107#ifndef OPENSSL_NO_SHA256
108static int init224(EVP_MD_CTX *ctx)
109{
110    return SHA224_Init(ctx->md_data);
111}
112
113static int init256(EVP_MD_CTX *ctx)
114{
115    return SHA256_Init(ctx->md_data);
116}
117
118/*
119 * Even though there're separate SHA224_[Update|Final], we call
120 * SHA256 functions even in SHA224 context. This is what happens
121 * there anyway, so we can spare few CPU cycles:-)
122 */
123static int update256(EVP_MD_CTX *ctx, const void *data, size_t count)
124{
125    return SHA256_Update(ctx->md_data, data, count);
126}
127
128static int final256(EVP_MD_CTX *ctx, unsigned char *md)
129{
130    return SHA256_Final(md, ctx->md_data);
131}
132
133static const EVP_MD sha224_md = {
134    NID_sha224,
135    NID_sha224WithRSAEncryption,
136    SHA224_DIGEST_LENGTH,
137    EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
138    init224,
139    update256,
140    final256,
141    NULL,
142    NULL,
143    EVP_PKEY_RSA_method,
144    SHA256_CBLOCK,
145    sizeof(EVP_MD *) + sizeof(SHA256_CTX),
146};
147
148const EVP_MD *EVP_sha224(void)
149{
150    return (&sha224_md);
151}
152
153static const EVP_MD sha256_md = {
154    NID_sha256,
155    NID_sha256WithRSAEncryption,
156    SHA256_DIGEST_LENGTH,
157    EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
158    init256,
159    update256,
160    final256,
161    NULL,
162    NULL,
163    EVP_PKEY_RSA_method,
164    SHA256_CBLOCK,
165    sizeof(EVP_MD *) + sizeof(SHA256_CTX),
166};
167
168const EVP_MD *EVP_sha256(void)
169{
170    return (&sha256_md);
171}
172#endif                          /* ifndef OPENSSL_NO_SHA256 */
173
174#ifndef OPENSSL_NO_SHA512
175static int init384(EVP_MD_CTX *ctx)
176{
177    return SHA384_Init(ctx->md_data);
178}
179
180static int init512(EVP_MD_CTX *ctx)
181{
182    return SHA512_Init(ctx->md_data);
183}
184
185/* See comment in SHA224/256 section */
186static int update512(EVP_MD_CTX *ctx, const void *data, size_t count)
187{
188    return SHA512_Update(ctx->md_data, data, count);
189}
190
191static int final512(EVP_MD_CTX *ctx, unsigned char *md)
192{
193    return SHA512_Final(md, ctx->md_data);
194}
195
196static const EVP_MD sha384_md = {
197    NID_sha384,
198    NID_sha384WithRSAEncryption,
199    SHA384_DIGEST_LENGTH,
200    EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
201    init384,
202    update512,
203    final512,
204    NULL,
205    NULL,
206    EVP_PKEY_RSA_method,
207    SHA512_CBLOCK,
208    sizeof(EVP_MD *) + sizeof(SHA512_CTX),
209};
210
211const EVP_MD *EVP_sha384(void)
212{
213    return (&sha384_md);
214}
215
216static const EVP_MD sha512_md = {
217    NID_sha512,
218    NID_sha512WithRSAEncryption,
219    SHA512_DIGEST_LENGTH,
220    EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
221    init512,
222    update512,
223    final512,
224    NULL,
225    NULL,
226    EVP_PKEY_RSA_method,
227    SHA512_CBLOCK,
228    sizeof(EVP_MD *) + sizeof(SHA512_CTX),
229};
230
231const EVP_MD *EVP_sha512(void)
232{
233    return (&sha512_md);
234}
235#endif                          /* ifndef OPENSSL_NO_SHA512 */
236