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[openssl.git] / crypto / ec / ecp_nistz256.c

diff --git a/crypto/ec/ecp_nistz256.c b/crypto/ec/ecp_nistz256.c
index 579a3ad622b7efd1cf1dc82f68ff3ef552156ab7..388e87e0fbc967786f093e513d6b882e25074117 100644 (file)
--- a/crypto/ec/ecp_nistz256.c
+++ b/crypto/ec/ecp_nistz256.c
@@ -179,7 +179,6 @@ static BN_ULONG is_zero(BN_ULONG in)
 {
     in |= (0 - in);
     in = ~in;
-    in &= BN_MASK2;
     in >>= BN_BITS2 - 1;
     return in;
 }
@@ -757,7 +756,7 @@ __owur static int ecp_nistz256_mult_precompute(EC_GROUP *group, BN_CTX *ctx)
      * implicit value of infinity at index zero. We use window of size 7, and
      * therefore require ceil(256/7) = 37 tables.
      */
-    BIGNUM *order;
+    const BIGNUM *order;
     EC_POINT *P = NULL, *T = NULL;
     const EC_POINT *generator;
     NISTZ256_PRE_COMP *pre_comp;
@@ -794,14 +793,11 @@ __owur static int ecp_nistz256_mult_precompute(EC_GROUP *group, BN_CTX *ctx)
     }
 
     BN_CTX_start(ctx);
-    order = BN_CTX_get(ctx);
 
+    order = EC_GROUP_get0_order(group);
     if (order == NULL)
         goto err;
 
-    if (!EC_GROUP_get_order(group, order, ctx))
-        goto err;
-
     if (BN_is_zero(order)) {
         ECerr(EC_F_ECP_NISTZ256_MULT_PRECOMPUTE, EC_R_UNKNOWN_ORDER);
         goto err;