Rework build: add special cases for AIX

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

diff --git a/crypto/ec/ecp_nistz256.c b/crypto/ec/ecp_nistz256.c
index 57a69aa8734ea29ba48c02b89403f5da61dca524..82affd6e6aad3ff2b26fa41e771156ca8251bf1d 100644 (file)
--- a/crypto/ec/ecp_nistz256.c
+++ b/crypto/ec/ecp_nistz256.c
@@ -3,7 +3,7 @@
  * Copyright (c) 2014, Intel Corporation. All Rights Reserved.
  * Copyright (c) 2015, CloudFlare, Inc.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
@@ -1104,28 +1104,12 @@ __owur static int ecp_nistz256_set_from_affine(EC_POINT *out, const EC_GROUP *gr
                                                const P256_POINT_AFFINE *in,
                                                BN_CTX *ctx)
 {
-    BIGNUM *x, *y;
-    BN_ULONG d_x[P256_LIMBS], d_y[P256_LIMBS];
     int ret = 0;
 
-    x = BN_new();
-    if (x == NULL)
-        return 0;
-    y = BN_new();
-    if (y == NULL) {
-        BN_free(x);
-        return 0;
-    }
-    memcpy(d_x, in->X, sizeof(d_x));
-    bn_set_static_words(x, d_x, P256_LIMBS);
-
-    memcpy(d_y, in->Y, sizeof(d_y));
-    bn_set_static_words(y, d_y, P256_LIMBS);
-
-    ret = EC_POINT_set_affine_coordinates_GFp(group, out, x, y, ctx);
-
-    BN_free(x);
-    BN_free(y);
+    if ((ret = bn_set_words(out->X, in->X, P256_LIMBS))
+        && (ret = bn_set_words(out->Y, in->Y, P256_LIMBS))
+        && (ret = bn_set_words(out->Z, ONE, P256_LIMBS)))
+        out->Z_is_one = 1;
 
     return ret;
 }
@@ -1139,12 +1123,10 @@ __owur static int ecp_nistz256_points_mul(const EC_GROUP *group,
                                           const BIGNUM *scalars[], BN_CTX *ctx)
 {
     int i = 0, ret = 0, no_precomp_for_generator = 0, p_is_infinity = 0;
-    size_t j;
     unsigned char p_str[33] = { 0 };
     const PRECOMP256_ROW *preComputedTable = NULL;
     const NISTZ256_PRE_COMP *pre_comp = NULL;
     const EC_POINT *generator = NULL;
-    BN_CTX *new_ctx = NULL;
     const BIGNUM **new_scalars = NULL;
     const EC_POINT **new_points = NULL;
     unsigned int idx = 0;
@@ -1162,27 +1144,6 @@ __owur static int ecp_nistz256_points_mul(const EC_GROUP *group,
         return 0;
     }
 
-    if (!ec_point_is_compat(r, group)) {
-        ECerr(EC_F_ECP_NISTZ256_POINTS_MUL, EC_R_INCOMPATIBLE_OBJECTS);
-        return 0;
-    }
-
-    if ((scalar == NULL) && (num == 0))
-        return EC_POINT_set_to_infinity(group, r);
-
-    for (j = 0; j < num; j++) {
-        if (!ec_point_is_compat(points[j], group)) {
-            ECerr(EC_F_ECP_NISTZ256_POINTS_MUL, EC_R_INCOMPATIBLE_OBJECTS);
-            return 0;
-        }
-    }
-
-    if (ctx == NULL) {
-        ctx = new_ctx = BN_CTX_new();
-        if (ctx == NULL)
-            goto err;
-    }
-
     BN_CTX_start(ctx);
 
     if (scalar) {
@@ -1204,9 +1165,9 @@ __owur static int ecp_nistz256_points_mul(const EC_GROUP *group,
             if (pre_comp_generator == NULL)
                 goto err;
 
+            ecp_nistz256_gather_w7(&p.a, pre_comp->precomp[0], 1);
             if (!ecp_nistz256_set_from_affine(pre_comp_generator,
-                                              group, pre_comp->precomp[0],
-                                              ctx)) {
+                                              group, &p.a, ctx)) {
                 EC_POINT_free(pre_comp_generator);
                 goto err;
             }
@@ -1378,9 +1339,7 @@ __owur static int ecp_nistz256_points_mul(const EC_GROUP *group,
     ret = 1;
 
 err:
-    if (ctx)
-        BN_CTX_end(ctx);
-    BN_CTX_free(new_ctx);
+    BN_CTX_end(ctx);
     OPENSSL_free(new_points);
     OPENSSL_free(new_scalars);
     return ret;
@@ -1473,7 +1432,7 @@ void EC_nistz256_pre_comp_free(NISTZ256_PRE_COMP *pre)
         return;
 
     CRYPTO_DOWN_REF(&pre->references, &i, pre->lock);
-    REF_PRINT_COUNT("EC_nistz256", x);
+    REF_PRINT_COUNT("EC_nistz256", pre);
     if (i > 0)
         return;
     REF_ASSERT_ISNT(i < 0);