ec/ecp_nistz256.c: improve ECDSA sign by 30-40%.

[openssl.git] / crypto / ec / ec_lib.c

diff --git a/crypto/ec/ec_lib.c b/crypto/ec/ec_lib.c
index 7ae48cf..8d508dd 100644 (file)
--- a/crypto/ec/ec_lib.c
+++ b/crypto/ec/ec_lib.c
@@ -261,6 +261,8 @@ int EC_METHOD_get_field_type(const EC_METHOD *meth)
     return meth->field_type;
 }
 
+static int ec_precompute_mont_data(EC_GROUP *);
+
 int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator,
                            const BIGNUM *order, const BIGNUM *cofactor)
 {
@@ -961,7 +963,7 @@ int EC_GROUP_have_precompute_mult(const EC_GROUP *group)
  * ec_precompute_mont_data sets |group->mont_data| from |group->order| and
  * returns one on success. On error it returns zero.
  */
-int ec_precompute_mont_data(EC_GROUP *group)
+static int ec_precompute_mont_data(EC_GROUP *group)
 {
     BN_CTX *ctx = BN_CTX_new();
     int ret = 0;
@@ -1006,3 +1008,12 @@ int ec_group_simple_order_bits(const EC_GROUP *group)
         return 0;
     return BN_num_bits(group->order);
 }
+
+int EC_GROUP_do_inverse_ord(const EC_GROUP *group, BIGNUM *res,
+                            BIGNUM *x, BN_CTX *ctx)
+{
+    if (group->meth->field_inverse_mod_ord != NULL)
+        return group->meth->field_inverse_mod_ord(group, res, x, ctx);
+    else
+        return 0;
+}