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

DSA_SIG_new() and DSA_SIG_free() to remove ASN1 dependencies from DSA_do_sign()
and DSA_do_verify().

1 files changed, 23 insertions, 15 deletions

diff --git a/crypto/dsa/dsa_sign.c b/crypto/dsa/dsa_sign.c
index 17555e5892..e02365a8b1 100644
--- a/crypto/dsa/dsa_sign.c
+++ b/crypto/dsa/dsa_sign.c
@@ -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)
+int DSA_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp)
 	{
-	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);
+	return dsa->meth->dsa_sign_setup(dsa, ctx_in, kinvp, rp);
 	}
 
-int DSA_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp)
+DSA_SIG *DSA_SIG_new(void)
 	{
-	return dsa->meth->dsa_sign_setup(dsa, ctx_in, kinvp, rp);
+	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);
+		}
 	}