avoid potential confusion about curves (prime192v1 and prime256v1 are
[openssl.git] / apps / ecparam.c
index 3bd0a97..010e214 100644 (file)
@@ -383,7 +383,26 @@ bad:
 
        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)
                        {