Double free in i2o_ECPublicKey

[oweals/openssl.git] / crypto / ecdsa / ecs_sign.c

diff --git a/crypto/ecdsa/ecs_sign.c b/crypto/ecdsa/ecs_sign.c
index ee6aef80105c84a74823bad946b248db6f207507..353d5af5146def603242fb1af0090c67fc714842 100644 (file)
--- a/crypto/ecdsa/ecs_sign.c
+++ b/crypto/ecdsa/ecs_sign.c
@@ -57,28 +57,43 @@
 #ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
 #endif
+#include <openssl/rand.h>
 
-ECDSA_SIG * ECDSA_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey)
+ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, int dlen, EC_KEY *eckey)
+{
+       return ECDSA_do_sign_ex(dgst, dlen, NULL, NULL, eckey);
+}
+
+ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, int dlen,
+       const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey)
 {
        ECDSA_DATA *ecdsa = ecdsa_check(eckey);
        if (ecdsa == NULL)
                return NULL;
-       return ecdsa->meth->ecdsa_do_sign(dgst, dlen, eckey);
+       return ecdsa->meth->ecdsa_do_sign(dgst, dlen, kinv, rp, eckey);
 }
 
 int ECDSA_sign(int type, const unsigned char *dgst, int dlen, unsigned char 
                *sig, unsigned int *siglen, EC_KEY *eckey)
+{
+       return ECDSA_sign_ex(type, dgst, dlen, sig, siglen, NULL, NULL, eckey);
+}
+
+int ECDSA_sign_ex(int type, const unsigned char *dgst, int dlen, unsigned char 
+       *sig, unsigned int *siglen, const BIGNUM *kinv, const BIGNUM *r, 
+       EC_KEY *eckey)
 {
        ECDSA_SIG *s;
-       s=ECDSA_do_sign(dgst,dlen,eckey);
+       RAND_seed(dgst, dlen);
+       s = ECDSA_do_sign_ex(dgst, dlen, kinv, r, eckey);
        if (s == NULL)
        {
                *siglen=0;
-               return(0);
+               return 0;
        }
-       *siglen=i2d_ECDSA_SIG(s,&sig);
+       *siglen = i2d_ECDSA_SIG(s, &sig);
        ECDSA_SIG_free(s);
-       return(1);
+       return 1;
 }
 
 int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx_in, BIGNUM **kinvp,