crypto/evp/m_sha1.c

   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 "internal/cryptlib.h"
  61
  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>
  67 #endif
  68
  69 static int init(EVP_MD_CTX *ctx)
  70 {
  71     return SHA1_Init(ctx->md_data);
  72 }
  73
  74 static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
  75 {
  76     return SHA1_Update(ctx->md_data, data, count);
  77 }
  78
  79 static int final(EVP_MD_CTX *ctx, unsigned char *md)
  80 {
  81     return SHA1_Final(md, ctx->md_data);
  82 }
  83
  84 static const EVP_MD sha1_md = {
  85     NID_sha1,
  86     NID_sha1WithRSAEncryption,
  87     SHA_DIGEST_LENGTH,
  88     EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
  89     init,
  90     update,
  91     final,
  92     NULL,
  93     NULL,
  94     EVP_PKEY_NULL_method,
  95     SHA_CBLOCK,
  96     sizeof(EVP_MD *) + sizeof(SHA_CTX),
  97 };
  98
  99 const EVP_MD *EVP_sha1(void)
 100 {
 101     return (&sha1_md);
 102 }
 103
 104 static int init224(EVP_MD_CTX *ctx)
 105 {
 106     return SHA224_Init(ctx->md_data);
 107 }
 108
 109 static int init256(EVP_MD_CTX *ctx)
 110 {
 111     return SHA256_Init(ctx->md_data);
 112 }
 113
 114 /*
 115  * Even though there're separate SHA224_[Update|Final], we call
 116  * SHA256 functions even in SHA224 context. This is what happens
 117  * there anyway, so we can spare few CPU cycles:-)
 118  */
 119 static int update256(EVP_MD_CTX *ctx, const void *data, size_t count)
 120 {
 121     return SHA256_Update(ctx->md_data, data, count);
 122 }
 123
 124 static int final256(EVP_MD_CTX *ctx, unsigned char *md)
 125 {
 126     return SHA256_Final(md, ctx->md_data);
 127 }
 128
 129 static const EVP_MD sha224_md = {
 130     NID_sha224,
 131     NID_sha224WithRSAEncryption,
 132     SHA224_DIGEST_LENGTH,
 133     EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
 134     init224,
 135     update256,
 136     final256,
 137     NULL,
 138     NULL,
 139     EVP_PKEY_NULL_method,
 140     SHA256_CBLOCK,
 141     sizeof(EVP_MD *) + sizeof(SHA256_CTX),
 142 };
 143
 144 const EVP_MD *EVP_sha224(void)
 145 {
 146     return (&sha224_md);
 147 }
 148
 149 static const EVP_MD sha256_md = {
 150     NID_sha256,
 151     NID_sha256WithRSAEncryption,
 152     SHA256_DIGEST_LENGTH,
 153     EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
 154     init256,
 155     update256,
 156     final256,
 157     NULL,
 158     NULL,
 159     EVP_PKEY_NULL_method,
 160     SHA256_CBLOCK,
 161     sizeof(EVP_MD *) + sizeof(SHA256_CTX),
 162 };
 163
 164 const EVP_MD *EVP_sha256(void)
 165 {
 166     return (&sha256_md);
 167 }
 168
 169 static int init384(EVP_MD_CTX *ctx)
 170 {
 171     return SHA384_Init(ctx->md_data);
 172 }
 173
 174 static int init512(EVP_MD_CTX *ctx)
 175 {
 176     return SHA512_Init(ctx->md_data);
 177 }
 178
 179 /* See comment in SHA224/256 section */
 180 static int update512(EVP_MD_CTX *ctx, const void *data, size_t count)
 181 {
 182     return SHA512_Update(ctx->md_data, data, count);
 183 }
 184
 185 static int final512(EVP_MD_CTX *ctx, unsigned char *md)
 186 {
 187     return SHA512_Final(md, ctx->md_data);
 188 }
 189
 190 static const EVP_MD sha384_md = {
 191     NID_sha384,
 192     NID_sha384WithRSAEncryption,
 193     SHA384_DIGEST_LENGTH,
 194     EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
 195     init384,
 196     update512,
 197     final512,
 198     NULL,
 199     NULL,
 200     EVP_PKEY_NULL_method,
 201     SHA512_CBLOCK,
 202     sizeof(EVP_MD *) + sizeof(SHA512_CTX),
 203 };
 204
 205 const EVP_MD *EVP_sha384(void)
 206 {
 207     return (&sha384_md);
 208 }
 209
 210 static const EVP_MD sha512_md = {
 211     NID_sha512,
 212     NID_sha512WithRSAEncryption,
 213     SHA512_DIGEST_LENGTH,
 214     EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT,
 215     init512,
 216     update512,
 217     final512,
 218     NULL,
 219     NULL,
 220     EVP_PKEY_NULL_method,
 221     SHA512_CBLOCK,
 222     sizeof(EVP_MD *) + sizeof(SHA512_CTX),
 223 };
 224
 225 const EVP_MD *EVP_sha512(void)
 226 {
 227     return (&sha512_md);
 228 }