1998-12-21 10:52:47 +00:00
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/* crypto/evp/digest.c */
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1998-12-21 10:56:39 +00:00
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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1998-12-21 10:52:47 +00:00
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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2001-09-10 14:59:17 +00:00
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/* ====================================================================
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* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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1998-12-21 10:52:47 +00:00
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#include <stdio.h>
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#include "cryptlib.h"
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1999-04-23 22:13:45 +00:00
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#include <openssl/objects.h>
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#include <openssl/evp.h>
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2003-01-30 17:39:26 +00:00
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#ifndef OPENSSL_NO_ENGINE
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2001-09-25 21:37:02 +00:00
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#include <openssl/engine.h>
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2003-01-30 17:39:26 +00:00
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#endif
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2008-09-15 22:21:42 +00:00
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#include "evp_locl.h"
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1998-12-21 10:52:47 +00:00
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2001-07-30 23:57:25 +00:00
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void EVP_MD_CTX_init(EVP_MD_CTX *ctx)
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{
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memset(ctx,'\0',sizeof *ctx);
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}
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EVP_MD_CTX *EVP_MD_CTX_create(void)
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{
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EVP_MD_CTX *ctx=OPENSSL_malloc(sizeof *ctx);
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2009-12-09 13:41:50 +00:00
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if (ctx)
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EVP_MD_CTX_init(ctx);
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2001-07-30 23:57:25 +00:00
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return ctx;
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}
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2001-03-08 14:04:22 +00:00
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int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type)
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1998-12-21 10:52:47 +00:00
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{
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2001-10-16 01:24:29 +00:00
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EVP_MD_CTX_init(ctx);
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2001-09-25 21:37:02 +00:00
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return EVP_DigestInit_ex(ctx, type, NULL);
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}
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2001-09-26 15:15:03 +00:00
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2008-09-15 22:21:42 +00:00
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#ifdef OPENSSL_FIPS
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/* The purpose of these is to trap programs that attempt to use non FIPS
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* algorithms in FIPS mode and ignore the errors.
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*/
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static int bad_init(EVP_MD_CTX *ctx)
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{ FIPS_ERROR_IGNORED("Digest init"); return 0;}
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static int bad_update(EVP_MD_CTX *ctx,const void *data,size_t count)
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{ FIPS_ERROR_IGNORED("Digest update"); return 0;}
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static int bad_final(EVP_MD_CTX *ctx,unsigned char *md)
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{ FIPS_ERROR_IGNORED("Digest Final"); return 0;}
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static const EVP_MD bad_md =
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2001-09-25 21:37:02 +00:00
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{
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2008-09-15 22:21:42 +00:00
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0,
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0,
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0,
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0,
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bad_init,
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bad_update,
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bad_final,
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NULL,
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NULL,
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NULL,
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0,
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{0,0,0,0},
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};
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#endif
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2003-01-30 17:39:26 +00:00
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#ifndef OPENSSL_NO_ENGINE
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2008-09-15 22:21:42 +00:00
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#ifdef OPENSSL_FIPS
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static int do_engine_null(ENGINE *impl) { return 0;}
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static int do_evp_md_engine_null(EVP_MD_CTX *ctx,
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const EVP_MD **ptype, ENGINE *impl)
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{ return 1; }
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static int (*do_engine_init)(ENGINE *impl)
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= do_engine_null;
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static int (*do_engine_finish)(ENGINE *impl)
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= do_engine_null;
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static int (*do_evp_md_engine)
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(EVP_MD_CTX *ctx, const EVP_MD **ptype, ENGINE *impl)
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= do_evp_md_engine_null;
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void int_EVP_MD_set_engine_callbacks(
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int (*eng_md_init)(ENGINE *impl),
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int (*eng_md_fin)(ENGINE *impl),
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int (*eng_md_evp)
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(EVP_MD_CTX *ctx, const EVP_MD **ptype, ENGINE *impl))
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{
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do_engine_init = eng_md_init;
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do_engine_finish = eng_md_fin;
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do_evp_md_engine = eng_md_evp;
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}
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#else
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#define do_engine_init ENGINE_init
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#define do_engine_finish ENGINE_finish
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static int do_evp_md_engine(EVP_MD_CTX *ctx, const EVP_MD **ptype, ENGINE *impl)
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{
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if (*ptype)
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2001-09-25 21:37:02 +00:00
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{
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/* Ensure an ENGINE left lying around from last time is cleared
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* (the previous check attempted to avoid this if the same
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* ENGINE and EVP_MD could be used). */
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if(ctx->engine)
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ENGINE_finish(ctx->engine);
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2002-03-09 18:58:05 +00:00
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if(impl)
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{
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if (!ENGINE_init(impl))
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{
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2008-09-15 22:21:42 +00:00
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EVPerr(EVP_F_DO_EVP_MD_ENGINE,EVP_R_INITIALIZATION_ERROR);
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2002-03-09 18:58:05 +00:00
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return 0;
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}
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}
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else
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2001-09-25 21:37:02 +00:00
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/* Ask if an ENGINE is reserved for this job */
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2008-09-15 22:21:42 +00:00
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impl = ENGINE_get_digest_engine((*ptype)->type);
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2001-09-25 21:37:02 +00:00
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if(impl)
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{
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/* There's an ENGINE for this job ... (apparently) */
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2008-09-15 22:21:42 +00:00
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const EVP_MD *d = ENGINE_get_digest(impl, (*ptype)->type);
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2001-09-25 21:37:02 +00:00
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if(!d)
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{
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/* Same comment from evp_enc.c */
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2008-09-15 22:21:42 +00:00
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EVPerr(EVP_F_DO_EVP_MD_ENGINE,EVP_R_INITIALIZATION_ERROR);
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2001-09-25 21:37:02 +00:00
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return 0;
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}
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/* We'll use the ENGINE's private digest definition */
|
2008-09-15 22:21:42 +00:00
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*ptype = d;
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2001-09-25 21:37:02 +00:00
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/* Store the ENGINE functional reference so we know
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* 'type' came from an ENGINE and we need to release
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* it when done. */
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ctx->engine = impl;
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}
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else
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ctx->engine = NULL;
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}
|
2003-01-30 17:39:26 +00:00
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else
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if(!ctx->digest)
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2001-09-25 21:37:02 +00:00
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{
|
2008-09-15 22:21:42 +00:00
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EVPerr(EVP_F_DO_EVP_MD_ENGINE,EVP_R_NO_DIGEST_SET);
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2001-09-25 21:37:02 +00:00
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return 0;
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}
|
2008-09-15 22:21:42 +00:00
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return 1;
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}
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#endif
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#endif
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int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl)
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{
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M_EVP_MD_CTX_clear_flags(ctx,EVP_MD_CTX_FLAG_CLEANED);
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#ifdef OPENSSL_FIPS
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if(FIPS_selftest_failed())
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{
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FIPSerr(FIPS_F_EVP_DIGESTINIT_EX,FIPS_R_FIPS_SELFTEST_FAILED);
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ctx->digest = &bad_md;
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return 0;
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}
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#endif
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#ifndef OPENSSL_NO_ENGINE
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/* Whether it's nice or not, "Inits" can be used on "Final"'d contexts
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* so this context may already have an ENGINE! Try to avoid releasing
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* the previous handle, re-querying for an ENGINE, and having a
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* reinitialisation, when it may all be unecessary. */
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if (ctx->engine && ctx->digest && (!type ||
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(type && (type->type == ctx->digest->type))))
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goto skip_to_init;
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if (!do_evp_md_engine(ctx, &type, impl))
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return 0;
|
2003-03-12 02:31:40 +00:00
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#endif
|
2001-09-10 14:59:17 +00:00
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if (ctx->digest != type)
|
2001-07-30 23:57:25 +00:00
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{
|
2008-09-15 22:21:42 +00:00
|
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#ifdef OPENSSL_FIPS
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if (FIPS_mode())
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{
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if (!(type->flags & EVP_MD_FLAG_FIPS)
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&& !(ctx->flags & EVP_MD_CTX_FLAG_NON_FIPS_ALLOW))
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{
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EVPerr(EVP_F_EVP_DIGESTINIT_EX, EVP_R_DISABLED_FOR_FIPS);
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ctx->digest = &bad_md;
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return 0;
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}
|
|
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}
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#endif
|
2001-09-10 14:59:17 +00:00
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if (ctx->digest && ctx->digest->ctx_size)
|
2001-09-01 18:37:17 +00:00
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OPENSSL_free(ctx->md_data);
|
2001-07-30 23:57:25 +00:00
|
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ctx->digest=type;
|
2001-09-10 14:59:17 +00:00
|
|
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if (type->ctx_size)
|
2009-12-09 13:41:50 +00:00
|
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{
|
2001-09-02 20:05:27 +00:00
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ctx->md_data=OPENSSL_malloc(type->ctx_size);
|
2009-12-09 13:41:50 +00:00
|
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if (!ctx->md_data)
|
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{
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EVPerr(EVP_F_EVP_DIGESTINIT_EX, ERR_R_MALLOC_FAILURE);
|
|
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return 0;
|
|
|
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}
|
|
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}
|
2001-09-10 16:57:06 +00:00
|
|
|
}
|
2003-01-30 17:39:26 +00:00
|
|
|
#ifndef OPENSSL_NO_ENGINE
|
2008-09-15 22:21:42 +00:00
|
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skip_to_init:
|
2003-01-30 17:39:26 +00:00
|
|
|
#endif
|
2002-01-25 03:13:50 +00:00
|
|
|
return ctx->digest->init(ctx);
|
1998-12-21 10:52:47 +00:00
|
|
|
}
|
|
|
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|
2001-03-08 14:04:22 +00:00
|
|
|
int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *data,
|
2004-05-15 11:29:55 +00:00
|
|
|
size_t count)
|
1998-12-21 10:52:47 +00:00
|
|
|
{
|
2008-09-15 22:21:42 +00:00
|
|
|
#ifdef OPENSSL_FIPS
|
|
|
|
FIPS_selftest_check();
|
|
|
|
#endif
|
2004-05-15 11:29:55 +00:00
|
|
|
return ctx->digest->update(ctx,data,count);
|
1998-12-21 10:52:47 +00:00
|
|
|
}
|
|
|
|
|
2001-07-30 23:57:25 +00:00
|
|
|
/* The caller can assume that this removes any secret data from the context */
|
2001-03-08 14:04:22 +00:00
|
|
|
int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size)
|
2001-10-16 01:24:29 +00:00
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
ret = EVP_DigestFinal_ex(ctx, md, size);
|
|
|
|
EVP_MD_CTX_cleanup(ctx);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The caller can assume that this removes any secret data from the context */
|
|
|
|
int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size)
|
1998-12-21 10:52:47 +00:00
|
|
|
{
|
2001-03-08 14:04:22 +00:00
|
|
|
int ret;
|
2008-09-15 22:21:42 +00:00
|
|
|
#ifdef OPENSSL_FIPS
|
|
|
|
FIPS_selftest_check();
|
|
|
|
#endif
|
2002-11-13 15:43:43 +00:00
|
|
|
|
|
|
|
OPENSSL_assert(ctx->digest->md_size <= EVP_MAX_MD_SIZE);
|
2001-09-02 20:05:27 +00:00
|
|
|
ret=ctx->digest->final(ctx,md);
|
1998-12-21 10:52:47 +00:00
|
|
|
if (size != NULL)
|
|
|
|
*size=ctx->digest->md_size;
|
2001-09-26 15:15:03 +00:00
|
|
|
if (ctx->digest->cleanup)
|
|
|
|
{
|
|
|
|
ctx->digest->cleanup(ctx);
|
2008-09-15 22:21:42 +00:00
|
|
|
M_EVP_MD_CTX_set_flags(ctx,EVP_MD_CTX_FLAG_CLEANED);
|
2001-09-26 15:15:03 +00:00
|
|
|
}
|
2001-07-30 23:57:25 +00:00
|
|
|
memset(ctx->md_data,0,ctx->digest->ctx_size);
|
2001-03-08 14:04:22 +00:00
|
|
|
return ret;
|
1998-12-21 10:52:47 +00:00
|
|
|
}
|
1999-01-31 12:14:39 +00:00
|
|
|
|
2001-07-30 23:57:25 +00:00
|
|
|
int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in)
|
2001-10-16 01:24:29 +00:00
|
|
|
{
|
|
|
|
EVP_MD_CTX_init(out);
|
|
|
|
return EVP_MD_CTX_copy_ex(out, in);
|
|
|
|
}
|
|
|
|
|
|
|
|
int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in)
|
2001-09-02 20:05:27 +00:00
|
|
|
{
|
2004-02-01 13:39:51 +00:00
|
|
|
unsigned char *tmp_buf;
|
2001-09-10 14:59:17 +00:00
|
|
|
if ((in == NULL) || (in->digest == NULL))
|
|
|
|
{
|
2005-05-11 03:45:39 +00:00
|
|
|
EVPerr(EVP_F_EVP_MD_CTX_COPY_EX,EVP_R_INPUT_NOT_INITIALIZED);
|
2001-09-10 14:59:17 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2003-01-30 17:39:26 +00:00
|
|
|
#ifndef OPENSSL_NO_ENGINE
|
2001-09-25 21:37:02 +00:00
|
|
|
/* Make sure it's safe to copy a digest context using an ENGINE */
|
2008-09-15 22:21:42 +00:00
|
|
|
if (in->engine && !do_engine_init(in->engine))
|
2001-09-25 21:37:02 +00:00
|
|
|
{
|
2005-05-11 03:45:39 +00:00
|
|
|
EVPerr(EVP_F_EVP_MD_CTX_COPY_EX,ERR_R_ENGINE_LIB);
|
2001-09-25 21:37:02 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2003-01-30 17:39:26 +00:00
|
|
|
#endif
|
2001-09-02 20:05:27 +00:00
|
|
|
|
2004-02-01 13:39:51 +00:00
|
|
|
if (out->digest == in->digest)
|
|
|
|
{
|
|
|
|
tmp_buf = out->md_data;
|
2008-09-15 22:21:42 +00:00
|
|
|
M_EVP_MD_CTX_set_flags(out,EVP_MD_CTX_FLAG_REUSE);
|
2004-02-01 13:39:51 +00:00
|
|
|
}
|
|
|
|
else tmp_buf = NULL;
|
2001-09-10 14:59:17 +00:00
|
|
|
EVP_MD_CTX_cleanup(out);
|
|
|
|
memcpy(out,in,sizeof *out);
|
2001-09-02 20:05:27 +00:00
|
|
|
|
2001-09-10 14:59:17 +00:00
|
|
|
if (out->digest->ctx_size)
|
|
|
|
{
|
2009-12-09 13:41:50 +00:00
|
|
|
if (tmp_buf)
|
|
|
|
out->md_data = tmp_buf;
|
|
|
|
else
|
|
|
|
{
|
|
|
|
out->md_data=OPENSSL_malloc(out->digest->ctx_size);
|
|
|
|
if (!out->md_data)
|
|
|
|
{
|
|
|
|
EVPerr(EVP_F_EVP_MD_CTX_COPY_EX,ERR_R_MALLOC_FAILURE);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
2001-09-10 14:59:17 +00:00
|
|
|
memcpy(out->md_data,in->md_data,out->digest->ctx_size);
|
|
|
|
}
|
2004-02-01 13:39:51 +00:00
|
|
|
|
2001-09-10 14:59:17 +00:00
|
|
|
if (out->digest->copy)
|
|
|
|
return out->digest->copy(out,in);
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
2001-02-02 00:45:54 +00:00
|
|
|
|
2004-05-15 11:29:55 +00:00
|
|
|
int EVP_Digest(const void *data, size_t count,
|
2001-10-16 01:24:29 +00:00
|
|
|
unsigned char *md, unsigned int *size, const EVP_MD *type, ENGINE *impl)
|
2001-09-10 14:59:17 +00:00
|
|
|
{
|
2001-02-02 00:45:54 +00:00
|
|
|
EVP_MD_CTX ctx;
|
2001-07-30 23:57:25 +00:00
|
|
|
int ret;
|
|
|
|
|
|
|
|
EVP_MD_CTX_init(&ctx);
|
2008-09-15 22:21:42 +00:00
|
|
|
M_EVP_MD_CTX_set_flags(&ctx,EVP_MD_CTX_FLAG_ONESHOT);
|
2001-10-16 01:24:29 +00:00
|
|
|
ret=EVP_DigestInit_ex(&ctx, type, impl)
|
2001-07-30 23:57:25 +00:00
|
|
|
&& EVP_DigestUpdate(&ctx, data, count)
|
2001-10-16 01:24:29 +00:00
|
|
|
&& EVP_DigestFinal_ex(&ctx, md, size);
|
2001-07-30 23:57:25 +00:00
|
|
|
EVP_MD_CTX_cleanup(&ctx);
|
|
|
|
|
|
|
|
return ret;
|
2001-09-10 14:59:17 +00:00
|
|
|
}
|
2001-07-30 23:57:25 +00:00
|
|
|
|
|
|
|
void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx)
|
|
|
|
{
|
|
|
|
EVP_MD_CTX_cleanup(ctx);
|
|
|
|
OPENSSL_free(ctx);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* This call frees resources associated with the context */
|
|
|
|
int EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx)
|
|
|
|
{
|
2001-08-28 13:45:41 +00:00
|
|
|
/* Don't assume ctx->md_data was cleaned in EVP_Digest_Final,
|
|
|
|
* because sometimes only copies of the context are ever finalised.
|
|
|
|
*/
|
2001-09-26 15:15:03 +00:00
|
|
|
if (ctx->digest && ctx->digest->cleanup
|
2008-09-15 22:21:42 +00:00
|
|
|
&& !M_EVP_MD_CTX_test_flags(ctx,EVP_MD_CTX_FLAG_CLEANED))
|
2001-09-07 12:03:24 +00:00
|
|
|
ctx->digest->cleanup(ctx);
|
2004-02-01 13:39:51 +00:00
|
|
|
if (ctx->digest && ctx->digest->ctx_size && ctx->md_data
|
2008-09-15 22:21:42 +00:00
|
|
|
&& !M_EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE))
|
2001-09-01 18:37:17 +00:00
|
|
|
{
|
2002-11-28 08:04:36 +00:00
|
|
|
OPENSSL_cleanse(ctx->md_data,ctx->digest->ctx_size);
|
2001-09-01 18:37:17 +00:00
|
|
|
OPENSSL_free(ctx->md_data);
|
|
|
|
}
|
2003-01-30 17:39:26 +00:00
|
|
|
#ifndef OPENSSL_NO_ENGINE
|
2001-09-25 21:37:02 +00:00
|
|
|
if(ctx->engine)
|
|
|
|
/* The EVP_MD we used belongs to an ENGINE, release the
|
|
|
|
* functional reference we held for this reason. */
|
2008-09-15 22:21:42 +00:00
|
|
|
do_engine_finish(ctx->engine);
|
2003-01-30 17:39:26 +00:00
|
|
|
#endif
|
2001-07-30 23:57:25 +00:00
|
|
|
memset(ctx,'\0',sizeof *ctx);
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|