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Move DSA_sign, DSA_verify to dsa_asn1.c and include separate versions of

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DSA_SIG_new() and DSA_SIG_free() to remove ASN1 dependencies from DSA_do_sign()
and DSA_do_verify().
This commit is contained in:
Dr. Stephen Henson
2011-01-25 16:55:27 +00:00
parent c31945e682
commit a7508fec1a
3 changed files with 63 additions and 38 deletions
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40
crypto/dsa/dsa_sign.c
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@@ -61,30 +61,38 @@
#include "cryptlib.h"
#include <openssl/dsa.h>
#include <openssl/rand.h>
#include <openssl/bn.h>
DSA_SIG * DSA_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
{
return dsa->meth->dsa_do_sign(dgst, dlen, dsa);
}
int DSA_sign(int type, const unsigned char *dgst, int dlen, unsigned char *sig,
unsigned int *siglen, DSA *dsa)
{
DSA_SIG *s;
RAND_seed(dgst, dlen);
s=DSA_do_sign(dgst,dlen,dsa);
if (s == NULL)
{
*siglen=0;
return(0);
}
*siglen=i2d_DSA_SIG(s,&sig);
DSA_SIG_free(s);
return(1);
}
int DSA_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp)
{
return dsa->meth->dsa_sign_setup(dsa, ctx_in, kinvp, rp);
}
DSA_SIG *DSA_SIG_new(void)
{
DSA_SIG *sig;
sig = OPENSSL_malloc(sizeof(DSA_SIG));
if (!sig)
return NULL;
sig->r = NULL;
sig->s = NULL;
return sig;
}
void DSA_SIG_free(DSA_SIG *sig)
{
if (sig)
{
if (sig->r)
BN_free(sig->r);
if (sig->s)
BN_free(sig->s);
OPENSSL_free(sig);
}
}