X-Git-Url: https://bearssl.org/gitweb//home/git/?p=BearSSL;a=blobdiff_plain;f=src%2Fec%2Fecdsa_i31_vrfy_raw.c;h=259477fdb8fcee11169459cb436f00da81a28b2f;hp=54dcfc2dfea69f2b5a2d8a417ba5144e81c84ebb;hb=2f9c953af45299f8546df8984d5262e767a7d943;hpb=3210f38e0491b39aec1ef419cb4114e9483089fb

diff --git a/src/ec/ecdsa_i31_vrfy_raw.c b/src/ec/ecdsa_i31_vrfy_raw.c
index 54dcfc2..259477f 100644
--- a/src/ec/ecdsa_i31_vrfy_raw.c
+++ b/src/ec/ecdsa_i31_vrfy_raw.c
@@ -47,6 +47,13 @@ br_ecdsa_i31_vrfy_raw(const br_ec_impl *impl,
 	size_t nlen, rlen, ulen;
 	uint32_t n0i, res;
 
+	/*
+	 * If the curve is not supported, then report an error.
+	 */
+	if (((impl->supported_curves >> pk->curve) & 1) == 0) {
+		return 0;
+	}
+
 	/*
 	 * Get the curve parameters (generator and order).
 	 */
@@ -137,7 +144,7 @@ br_ecdsa_i31_vrfy_raw(const br_ec_impl *impl,
 	 */
 	ulen = cd->generator_len;
 	memcpy(eU, pk->q, ulen);
-	res = impl->muladd(eU, cd->generator, ulen,
+	res = impl->muladd(eU, NULL, ulen,
 		tx, nlen, ty, nlen, cd->curve);
 
 	/*