Added ChaCha20+Poly1305 support (stand-alone, cipher suites).

[BearSSL] / src / ec / ecdsa_i31_sign_raw.c

diff --git a/src/ec/ecdsa_i31_sign_raw.c b/src/ec/ecdsa_i31_sign_raw.c
index 3849545..df20c24 100644 (file)
--- a/src/ec/ecdsa_i31_sign_raw.c
+++ b/src/ec/ecdsa_i31_sign_raw.c
@@ -50,6 +50,13 @@ br_ecdsa_i31_sign_raw(const br_ec_impl *impl,
        uint32_t n0i, ctl;
        br_hmac_drbg_context drbg;
 
+       /*
+        * If the curve is not supported, then exit with an error.
+        */
+       if (((impl->supported_curves >> sk->curve) & 1) == 0) {
+               return 0;
+       }
+
        /*
         * Get the curve parameters (generator and order).
         */