From 796d609550df3a33fc11468741c5d2f6d3df4c11 Mon Sep 17 00:00:00 2001
From: beck <>
Date: Sun, 19 Mar 2000 11:13:58 +0000
Subject: OpenSSL 0.9.5 merge

*warning* this bumps shared lib minors for libssl and libcrypto from 2.1 to 2.2
if you are using the ssl26 packages for ssh and other things to work you will
need to get new ones (see ~beck/libsslsnap/<arch>) on cvs or ~beck/src-patent.tar.gz on cvs
---
 src/lib/libcrypto/dsa/dsa_sign.c | 123 +--------------------------------------
 1 file changed, 2 insertions(+), 121 deletions(-)

(limited to 'src/lib/libcrypto/dsa/dsa_sign.c')

diff --git a/src/lib/libcrypto/dsa/dsa_sign.c b/src/lib/libcrypto/dsa/dsa_sign.c
index 774c161964..89205026f0 100644
--- a/src/lib/libcrypto/dsa/dsa_sign.c
+++ b/src/lib/libcrypto/dsa/dsa_sign.c
@@ -67,73 +67,9 @@
 
 DSA_SIG * DSA_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
 	{
-	BIGNUM *kinv=NULL,*r=NULL,*s=NULL;
-	BIGNUM m;
-	BIGNUM xr;
-	BN_CTX *ctx=NULL;
-	int i,reason=ERR_R_BN_LIB;
-	DSA_SIG *ret=NULL;
-
-	BN_init(&m);
-	BN_init(&xr);
-	s=BN_new();
-	if (s == NULL) goto err;
-
-	i=BN_num_bytes(dsa->q); /* should be 20 */
-	if ((dlen > i) || (dlen > 50))
-		{
-		reason=DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE;
-		goto err;
-		}
-
-	ctx=BN_CTX_new();
-	if (ctx == NULL) goto err;
-
-	if ((dsa->kinv == NULL) || (dsa->r == NULL))
-		{
-		if (!DSA_sign_setup(dsa,ctx,&kinv,&r)) goto err;
-		}
-	else
-		{
-		kinv=dsa->kinv;
-		dsa->kinv=NULL;
-		r=dsa->r;
-		dsa->r=NULL;
-		}
-
-	if (BN_bin2bn(dgst,dlen,&m) == NULL) goto err;
-
-	/* Compute  s = inv(k) (m + xr) mod q */
-	if (!BN_mod_mul(&xr,dsa->priv_key,r,dsa->q,ctx)) goto err;/* s = xr */
-	if (!BN_add(s, &xr, &m)) goto err;		/* s = m + xr */
-	if (BN_cmp(s,dsa->q) > 0)
-		BN_sub(s,s,dsa->q);
-	if (!BN_mod_mul(s,s,kinv,dsa->q,ctx)) goto err;
-
-	ret=DSA_SIG_new();
-	if (ret == NULL) goto err;
-	ret->r = r;
-	ret->s = s;
-	
-err:
-	if (!ret)
-		{
-		DSAerr(DSA_F_DSA_DO_SIGN,reason);
-		BN_free(r);
-		BN_free(s);
-		}
-	if (ctx != NULL) BN_CTX_free(ctx);
-	BN_clear_free(&m);
-	BN_clear_free(&xr);
-	if (kinv != NULL) /* dsa->kinv is NULL now if we used it */
-	    BN_clear_free(kinv);
-	return(ret);
+	return dsa->meth->dsa_do_sign(dgst, dlen, dsa);
 	}
 
-/* data has already been hashed (probably with SHA or SHA-1). */
-
-/* unsigned char *sig:  out    */
-/* unsigned int *siglen:  out    */
 int DSA_sign(int type, const unsigned char *dgst, int dlen, unsigned char *sig,
 	     unsigned int *siglen, DSA *dsa)
 	{
@@ -151,61 +87,6 @@ int DSA_sign(int type, const unsigned char *dgst, int dlen, unsigned char *sig,
 
 int DSA_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp)
 	{
-	BN_CTX *ctx;
-	BIGNUM k,*kinv=NULL,*r=NULL;
-	int ret=0;
-
-	if (ctx_in == NULL)
-		{
-		if ((ctx=BN_CTX_new()) == NULL) goto err;
-		}
-	else
-		ctx=ctx_in;
-
-	BN_init(&k);
-	if ((r=BN_new()) == NULL) goto err;
-	kinv=NULL;
-
-	/* Get random k */
-	for (;;)
-		{
-		if (!BN_rand(&k, BN_num_bits(dsa->q), 1, 0)) goto err;
-		if (BN_cmp(&k,dsa->q) >= 0)
-			BN_sub(&k,&k,dsa->q);
-		if (!BN_is_zero(&k)) break;
-		}
-
-	if ((dsa->method_mont_p == NULL) && (dsa->flags & DSA_FLAG_CACHE_MONT_P))
-		{
-		if ((dsa->method_mont_p=(char *)BN_MONT_CTX_new()) != NULL)
-			if (!BN_MONT_CTX_set((BN_MONT_CTX *)dsa->method_mont_p,
-				dsa->p,ctx)) goto err;
-		}
-
-	/* Compute r = (g^k mod p) mod q */
-	if (!BN_mod_exp_mont(r,dsa->g,&k,dsa->p,ctx,
-		(BN_MONT_CTX *)dsa->method_mont_p)) goto err;
-	if (!BN_mod(r,r,dsa->q,ctx)) goto err;
-
-	/* Compute  part of 's = inv(k) (m + xr) mod q' */
-	if ((kinv=BN_mod_inverse(NULL,&k,dsa->q,ctx)) == NULL) goto err;
-
-	if (*kinvp != NULL) BN_clear_free(*kinvp);
-	*kinvp=kinv;
-	kinv=NULL;
-	if (*rp != NULL) BN_clear_free(*rp);
-	*rp=r;
-	ret=1;
-err:
-	if (!ret)
-		{
-		DSAerr(DSA_F_DSA_SIGN_SETUP,ERR_R_BN_LIB);
-		if (kinv != NULL) BN_clear_free(kinv);
-		if (r != NULL) BN_clear_free(r);
-		}
-	if (ctx_in == NULL) BN_CTX_free(ctx);
-	if (kinv != NULL) BN_clear_free(kinv);
-	BN_clear_free(&k);
-	return(ret);
+	return dsa->meth->dsa_sign_setup(dsa, ctx_in, kinvp, rp);
 	}
 
-- 
cgit v1.2.3-55-g6feb