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      1 /* crypto/evp/m_ecdsa.c */
      2 /* ====================================================================
      3  * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  *
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in
     14  *    the documentation and/or other materials provided with the
     15  *    distribution.
     16  *
     17  * 3. All advertising materials mentioning features or use of this
     18  *    software must display the following acknowledgment:
     19  *    "This product includes software developed by the OpenSSL Project
     20  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
     21  *
     22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
     23  *    endorse or promote products derived from this software without
     24  *    prior written permission. For written permission, please contact
     25  *    openssl-core (at) openssl.org.
     26  *
     27  * 5. Products derived from this software may not be called "OpenSSL"
     28  *    nor may "OpenSSL" appear in their names without prior written
     29  *    permission of the OpenSSL Project.
     30  *
     31  * 6. Redistributions of any form whatsoever must retain the following
     32  *    acknowledgment:
     33  *    "This product includes software developed by the OpenSSL Project
     34  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
     35  *
     36  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
     37  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
     40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     42  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     43  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     44  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     45  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     46  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
     47  * OF THE POSSIBILITY OF SUCH DAMAGE.
     48  * ====================================================================
     49  *
     50  * This product includes cryptographic software written by Eric Young
     51  * (eay (at) cryptsoft.com).  This product includes software written by Tim
     52  * Hudson (tjh (at) cryptsoft.com).
     53  *
     54  */
     55 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
     56  * All rights reserved.
     57  *
     58  * This package is an SSL implementation written
     59  * by Eric Young (eay (at) cryptsoft.com).
     60  * The implementation was written so as to conform with Netscapes SSL.
     61  *
     62  * This library is free for commercial and non-commercial use as long as
     63  * the following conditions are aheared to.  The following conditions
     64  * apply to all code found in this distribution, be it the RC4, RSA,
     65  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
     66  * included with this distribution is covered by the same copyright terms
     67  * except that the holder is Tim Hudson (tjh (at) cryptsoft.com).
     68  *
     69  * Copyright remains Eric Young's, and as such any Copyright notices in
     70  * the code are not to be removed.
     71  * If this package is used in a product, Eric Young should be given attribution
     72  * as the author of the parts of the library used.
     73  * This can be in the form of a textual message at program startup or
     74  * in documentation (online or textual) provided with the package.
     75  *
     76  * Redistribution and use in source and binary forms, with or without
     77  * modification, are permitted provided that the following conditions
     78  * are met:
     79  * 1. Redistributions of source code must retain the copyright
     80  *    notice, this list of conditions and the following disclaimer.
     81  * 2. Redistributions in binary form must reproduce the above copyright
     82  *    notice, this list of conditions and the following disclaimer in the
     83  *    documentation and/or other materials provided with the distribution.
     84  * 3. All advertising materials mentioning features or use of this software
     85  *    must display the following acknowledgement:
     86  *    "This product includes cryptographic software written by
     87  *     Eric Young (eay (at) cryptsoft.com)"
     88  *    The word 'cryptographic' can be left out if the rouines from the library
     89  *    being used are not cryptographic related :-).
     90  * 4. If you include any Windows specific code (or a derivative thereof) from
     91  *    the apps directory (application code) you must include an acknowledgement:
     92  *    "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)"
     93  *
     94  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     95  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     96  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     97  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     98  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     99  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    100  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    101  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    102  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    103  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    104  * SUCH DAMAGE.
    105  *
    106  * The licence and distribution terms for any publically available version or
    107  * derivative of this code cannot be changed.  i.e. this code cannot simply be
    108  * copied and put under another distribution licence
    109  * [including the GNU Public Licence.]
    110  */
    111 
    112 #include <stdio.h>
    113 #include "cryptlib.h"
    114 #include <openssl/evp.h>
    115 #include <openssl/objects.h>
    116 #include <openssl/x509.h>
    117 
    118 #ifndef OPENSSL_NO_SHA
    119 #ifndef OPENSSL_FIPS
    120 
    121 static int init(EVP_MD_CTX *ctx)
    122 	{ return SHA1_Init(ctx->md_data); }
    123 
    124 static int update(EVP_MD_CTX *ctx,const void *data,size_t count)
    125 	{ return SHA1_Update(ctx->md_data,data,count); }
    126 
    127 static int final(EVP_MD_CTX *ctx,unsigned char *md)
    128 	{ return SHA1_Final(md,ctx->md_data); }
    129 
    130 static const EVP_MD ecdsa_md=
    131 	{
    132 	NID_ecdsa_with_SHA1,
    133 	NID_ecdsa_with_SHA1,
    134 	SHA_DIGEST_LENGTH,
    135 	EVP_MD_FLAG_PKEY_DIGEST,
    136 	init,
    137 	update,
    138 	final,
    139 	NULL,
    140 	NULL,
    141 	EVP_PKEY_ECDSA_method,
    142 	SHA_CBLOCK,
    143 	sizeof(EVP_MD *)+sizeof(SHA_CTX),
    144 	};
    145 
    146 const EVP_MD *EVP_ecdsa(void)
    147 	{
    148 	return(&ecdsa_md);
    149 	}
    150 #endif
    151 #endif
    152