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/*
* Copyright (c) 2006 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
RCSID("$Id: dsa.c,v 1.2 2006/05/07 11:31:58 lha Exp $");
#include <stdio.h>
#include <stdlib.h>
#include <dsa.h>
#include <roken.h>
/*
*
*/
DSA *
DSA_new(void)
{
DSA *dsa = calloc(1, sizeof(*dsa));
dsa->meth = rk_UNCONST(DSA_get_default_method());
dsa->references = 1;
return dsa;
}
void
DSA_free(DSA *dsa)
{
if (dsa->references <= 0)
abort();
if (--dsa->references > 0)
return;
(*dsa->meth->finish)(dsa);
#define free_if(f) if (f) { BN_free(f); }
free_if(dsa->p);
free_if(dsa->q);
free_if(dsa->g);
free_if(dsa->pub_key);
free_if(dsa->priv_key);
free_if(dsa->kinv);
free_if(dsa->r);
#undef free_if
memset(dsa, 0, sizeof(*dsa));
free(dsa);
}
int
DSA_up_ref(DSA *dsa)
{
return ++dsa->references;
}
/*
*
*/
static const DSA_METHOD dsa_null_method = {
"hcrypto null DSA"
};
const DSA_METHOD *
DSA_null_method(void)
{
return &dsa_null_method;
}
const DSA_METHOD *dsa_default_mech = &dsa_null_method;
void
DSA_set_default_method(const DSA_METHOD *mech)
{
dsa_default_mech = mech;
}
const DSA_METHOD *
DSA_get_default_method(void)
{
return dsa_default_mech;
}
int
DSA_verify(int type, const unsigned char * digest, int digest_len,
const unsigned char *sig, int sig_len, DSA *dsa)
{
return -1;
}
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