m_sha1.c revision 296341 
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_FIPS
63
64# ifndef OPENSSL_NO_SHA
65
66#  include <openssl/evp.h>
67#  include <openssl/objects.h>
68#  include <openssl/sha.h>
69#  ifndef OPENSSL_NO_RSA
70#   include <openssl/rsa.h>
71#  endif
72
73static int init(EVP_MD_CTX *ctx)
74{
75    return SHA1_Init(ctx->md_data);
76}
77
78static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
79{
80    return SHA1_Update(ctx->md_data, data, count);
81}
82
83static int final(EVP_MD_CTX *ctx, unsigned char *md)
84{
85    return SHA1_Final(md, ctx->md_data);
86}
87
88static const EVP_MD sha1_md = {
89    NID_sha1,
90    NID_sha1WithRSAEncryption,
91    SHA_DIGEST_LENGTH,
92    EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
93    init,
94    update,
95    final,
96    NULL,
97    NULL,
98    EVP_PKEY_RSA_method,
99    SHA_CBLOCK,
100    sizeof(EVP_MD *) + sizeof(SHA_CTX),
101};
102
103const EVP_MD *EVP_sha1(void)
104{
105    return (&sha1_md);
106}
107# endif
108
109# ifndef OPENSSL_NO_SHA256
110static int init224(EVP_MD_CTX *ctx)
111{
112    return SHA224_Init(ctx->md_data);
113}
114
115static int init256(EVP_MD_CTX *ctx)
116{
117    return SHA256_Init(ctx->md_data);
118}
119
120/*
121 * Even though there're separate SHA224_[Update|Final], we call
122 * SHA256 functions even in SHA224 context. This is what happens
123 * there anyway, so we can spare few CPU cycles:-)
124 */
125static int update256(EVP_MD_CTX *ctx, const void *data, size_t count)
126{
127    return SHA256_Update(ctx->md_data, data, count);
128}
129
130static int final256(EVP_MD_CTX *ctx, unsigned char *md)
131{
132    return SHA256_Final(md, ctx->md_data);
133}
134
135static const EVP_MD sha224_md = {
136    NID_sha224,
137    NID_sha224WithRSAEncryption,
138    SHA224_DIGEST_LENGTH,
139    EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
140    init224,
141    update256,
142    final256,
143    NULL,
144    NULL,
145    EVP_PKEY_RSA_method,
146    SHA256_CBLOCK,
147    sizeof(EVP_MD *) + sizeof(SHA256_CTX),
148};
149
150const EVP_MD *EVP_sha224(void)
151{
152    return (&sha224_md);
153}
154
155static const EVP_MD sha256_md = {
156    NID_sha256,
157    NID_sha256WithRSAEncryption,
158    SHA256_DIGEST_LENGTH,
159    EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
160    init256,
161    update256,
162    final256,
163    NULL,
164    NULL,
165    EVP_PKEY_RSA_method,
166    SHA256_CBLOCK,
167    sizeof(EVP_MD *) + sizeof(SHA256_CTX),
168};
169
170const EVP_MD *EVP_sha256(void)
171{
172    return (&sha256_md);
173}
174# endif                         /* ifndef OPENSSL_NO_SHA256 */
175
176# ifndef OPENSSL_NO_SHA512
177static int init384(EVP_MD_CTX *ctx)
178{
179    return SHA384_Init(ctx->md_data);
180}
181
182static int init512(EVP_MD_CTX *ctx)
183{
184    return SHA512_Init(ctx->md_data);
185}
186
187/* See comment in SHA224/256 section */
188static int update512(EVP_MD_CTX *ctx, const void *data, size_t count)
189{
190    return SHA512_Update(ctx->md_data, data, count);
191}
192
193static int final512(EVP_MD_CTX *ctx, unsigned char *md)
194{
195    return SHA512_Final(md, ctx->md_data);
196}
197
198static const EVP_MD sha384_md = {
199    NID_sha384,
200    NID_sha384WithRSAEncryption,
201    SHA384_DIGEST_LENGTH,
202    EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
203    init384,
204    update512,
205    final512,
206    NULL,
207    NULL,
208    EVP_PKEY_RSA_method,
209    SHA512_CBLOCK,
210    sizeof(EVP_MD *) + sizeof(SHA512_CTX),
211};
212
213const EVP_MD *EVP_sha384(void)
214{
215    return (&sha384_md);
216}
217
218static const EVP_MD sha512_md = {
219    NID_sha512,
220    NID_sha512WithRSAEncryption,
221    SHA512_DIGEST_LENGTH,
222    EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
223    init512,
224    update512,
225    final512,
226    NULL,
227    NULL,
228    EVP_PKEY_RSA_method,
229    SHA512_CBLOCK,
230    sizeof(EVP_MD *) + sizeof(SHA512_CTX),
231};
232
233const EVP_MD *EVP_sha512(void)
234{
235    return (&sha512_md);
236}
237# endif                         /* ifndef OPENSSL_NO_SHA512 */
238
239#endif
240