Remove a strict aliasing issue with pre-computed curve448 constants

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

diff --git a/crypto/ec/ec_pmeth.c b/crypto/ec/ec_pmeth.c
index aa1fa9f53f1830cc9c0d43fe3e8753c4c94a52dd..68ff2bbccf45f4aa670ff153417356b8f1c83cc0 100644 (file)
--- a/crypto/ec/ec_pmeth.c
+++ b/crypto/ec/ec_pmeth.c
@@ -1,59 +1,10 @@
 /*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
- * 2006.
- */
-/* ====================================================================
- * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com).  This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+ * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
+ * Licensed under the OpenSSL license (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
  */
 
 #include <stdio.h>
@@ -62,7 +13,6 @@
 #include <openssl/x509.h>
 #include <openssl/ec.h>
 #include "ec_lcl.h"
-#include <openssl/ecdsa.h>
 #include <openssl/evp.h>
 #include "internal/evp_int.h"
 
@@ -93,7 +43,7 @@ static int pkey_ec_init(EVP_PKEY_CTX *ctx)
     EC_PKEY_CTX *dctx;
 
     dctx = OPENSSL_zalloc(sizeof(*dctx));
-    if (!dctx)
+    if (dctx == NULL)
         return 0;
 
     dctx->cofactor_mode = -1;
@@ -125,7 +75,7 @@ static int pkey_ec_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
     dctx->kdf_md = sctx->kdf_md;
     dctx->kdf_outlen = sctx->kdf_outlen;
     if (sctx->kdf_ukm) {
-        dctx->kdf_ukm = BUF_memdup(sctx->kdf_ukm, sctx->kdf_ukmlen);
+        dctx->kdf_ukm = OPENSSL_memdup(sctx->kdf_ukm, sctx->kdf_ukmlen);
         if (!dctx->kdf_ukm)
             return 0;
     } else
@@ -248,7 +198,7 @@ static int pkey_ec_kdf_derive(EVP_PKEY_CTX *ctx,
     if (!pkey_ec_derive(ctx, NULL, &ktmplen))
         return 0;
     ktmp = OPENSSL_malloc(ktmplen);
-    if (!ktmp)
+    if (ktmp == NULL)
         return 0;
     if (!pkey_ec_derive(ctx, ktmp, &ktmplen))
         goto err;
@@ -442,7 +392,7 @@ static int pkey_ec_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
         return 0;
     }
     ec = EC_KEY_new();
-    if (!ec)
+    if (ec == NULL)
         return 0;
     ret = EC_KEY_set_group(ec, dctx->gen_group);
     if (ret)