if (curve_name != NULL)
{
- int nid = OBJ_sn2nid(curve_name);
+ int nid;
+
+ /* workaround for the SECG curve names secp192r1
+ * and secp256r1 (which are the same as the curves
+ * prime192v1 and prime256v1 defined in X9.62)
+ */
+ if (!strcmp(curve_name, "secp192r1"))
+ {
+ BIO_printf(bio_err, "using curve name prime192v1 "
+ "instead of secp192r1\n");
+ nid = NID_X9_62_prime192v1;
+ }
+ else if (!strcmp(curve_name, "secp256r1"))
+ {
+ BIO_printf(bio_err, "using curve name prime256v1 "
+ "instead of secp256r1\n");
+ nid = NID_X9_62_prime256v1;
+ }
+ else
+ nid = OBJ_sn2nid(curve_name);
if (nid == 0)
{