EC2M Lopez-Dahab ladder: use it also for ECDSA verify

[openssl.git] / crypto / ec / ecp_nistp521.c

diff --git a/crypto/ec/ecp_nistp521.c b/crypto/ec/ecp_nistp521.c
index 43f3e2d9eef34ac601ea1732157b69828960128d..06945b5f6b0406dc7a17940810e046b87fdc8995 100644 (file)
--- a/crypto/ec/ecp_nistp521.c
+++ b/crypto/ec/ecp_nistp521.c
@@ -1660,7 +1660,10 @@ const EC_METHOD *EC_GFp_nistp521_method(void)
         0, /* keyfinish */
         ecdh_simple_compute_key,
         0, /* field_inverse_mod_ord */
-        0  /* blind_coordinates */
+        0, /* blind_coordinates */
+        0, /* ladder_pre */
+        0, /* ladder_step */
+        0  /* ladder_post */
     };
 
     return &ret;
@@ -1671,7 +1674,7 @@ const EC_METHOD *EC_GFp_nistp521_method(void)
  * FUNCTIONS TO MANAGE PRECOMPUTATION
  */
 
-static NISTP521_PRE_COMP *nistp521_pre_comp_new()
+static NISTP521_PRE_COMP *nistp521_pre_comp_new(void)
 {
     NISTP521_PRE_COMP *ret = OPENSSL_zalloc(sizeof(*ret));
 
@@ -1852,7 +1855,6 @@ int ec_GFp_nistp521_points_mul(const EC_GROUP *group, EC_POINT *r,
     int ret = 0;
     int j;
     int mixed = 0;
-    BN_CTX *new_ctx = NULL;
     BIGNUM *x, *y, *z, *tmp_scalar;
     felem_bytearray g_secret;
     felem_bytearray *secrets = NULL;
@@ -1869,9 +1871,6 @@ int ec_GFp_nistp521_points_mul(const EC_GROUP *group, EC_POINT *r,
     const EC_POINT *p = NULL;
     const BIGNUM *p_scalar = NULL;
 
-    if (ctx == NULL)
-        if ((ctx = new_ctx = BN_CTX_new()) == NULL)
-            return 0;
     BN_CTX_start(ctx);
     x = BN_CTX_get(ctx);
     y = BN_CTX_get(ctx);
@@ -2038,7 +2037,6 @@ int ec_GFp_nistp521_points_mul(const EC_GROUP *group, EC_POINT *r,
  err:
     BN_CTX_end(ctx);
     EC_POINT_free(generator);
-    BN_CTX_free(new_ctx);
     OPENSSL_free(secrets);
     OPENSSL_free(pre_comp);
     OPENSSL_free(tmp_felems);