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

[oweals/openssl.git] / crypto / ec / ecp_nistp256.c

diff --git a/crypto/ec/ecp_nistp256.c b/crypto/ec/ecp_nistp256.c
index 5eee25cde26a1cbf13404557c0215c5aff4f3869..22f172be74cc6997383f9143c732c2a39acb308d 100644 (file)
--- a/crypto/ec/ecp_nistp256.c
+++ b/crypto/ec/ecp_nistp256.c
@@ -47,7 +47,7 @@ typedef __uint128_t uint128_t;  /* nonstandard; implemented by gcc on 64-bit
                                  * platforms */
 typedef __int128_t int128_t;
 # else
-#  error "Need GCC 4.0 or later to define type uint128_t"
+#  error "Your compiler doesn't appear to support 128-bit integer types"
 # endif
 
 typedef uint8_t u8;
@@ -1821,7 +1821,12 @@ const EC_METHOD *EC_GFp_nistp256_method(void)
         ec_key_simple_generate_public_key,
         0, /* keycopy */
         0, /* keyfinish */
-        ecdh_simple_compute_key
+        ecdh_simple_compute_key,
+        0, /* field_inverse_mod_ord */
+        0, /* blind_coordinates */
+        0, /* ladder_pre */
+        0, /* ladder_step */
+        0  /* ladder_post */
     };
 
     return &ret;
@@ -1832,7 +1837,7 @@ const EC_METHOD *EC_GFp_nistp256_method(void)
  * FUNCTIONS TO MANAGE PRECOMPUTATION
  */
 
-static NISTP256_PRE_COMP *nistp256_pre_comp_new()
+static NISTP256_PRE_COMP *nistp256_pre_comp_new(void)
 {
     NISTP256_PRE_COMP *ret = OPENSSL_zalloc(sizeof(*ret));
 
@@ -2013,7 +2018,6 @@ int ec_GFp_nistp256_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;
@@ -2031,9 +2035,6 @@ int ec_GFp_nistp256_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);
@@ -2202,7 +2203,6 @@ int ec_GFp_nistp256_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_smallfelems);