Reorganize local header files

[thirdparty/openssl.git] / crypto / aes / aes_ige.c

diff --git a/crypto/aes/aes_ige.c b/crypto/aes/aes_ige.c
index c789cc06ab26ea146d15cae94cb74c2afe855845..b95d3d4ba6b425b34de21ccdc2aa92f4ecc6c13a 100644 (file)
--- a/crypto/aes/aes_ige.c
+++ b/crypto/aes/aes_ige.c
@@ -1,58 +1,20 @@
-/* crypto/aes/aes_ige.c -*- mode:C; c-file-style: "eay" -*- */
-/* ====================================================================
- * 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
- *    openssl-core@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.
- * ====================================================================
+/*
+ * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
+ * 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
  */
 
 #include "internal/cryptlib.h"
 
+#if OPENSSL_API_3
+NON_EMPTY_TRANSLATION_UNIT
+#else
+
 #include <openssl/aes.h>
-#include "aes_locl.h"
+#include "aes_local.h"
 
 #define N_WORDS (AES_BLOCK_SIZE / sizeof(unsigned long))
 typedef struct {
@@ -76,6 +38,7 @@ typedef struct {
 
 /* N.B. The IV for this mode is _twice_ the block size */
 
+/*  Use of this function is deprecated. */
 void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
                      size_t length, const AES_KEY *key,
                      unsigned char *ivec, const int enc)
@@ -83,6 +46,9 @@ void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
     size_t n;
     size_t len = length;
 
+    if (length == 0)
+        return;
+
     OPENSSL_assert(in && out && key && ivec);
     OPENSSL_assert((AES_ENCRYPT == enc) || (AES_DECRYPT == enc));
     OPENSSL_assert((length % AES_BLOCK_SIZE) == 0);
@@ -201,6 +167,14 @@ void AES_ige_encrypt(const unsigned char *in, unsigned char *out,
 /*
  * Note that its effectively impossible to do biIGE in anything other
  * than a single pass, so no provision is made for chaining.
+ *
+ * NB: The implementation of AES_bi_ige_encrypt has a bug. It is supposed to use
+ * 2 AES keys, but in fact only one is ever used. This bug has been present
+ * since this code was first implemented. It is believed to have minimal
+ * security impact in practice and has therefore not been fixed for backwards
+ * compatibility reasons.
+ *
+ * Use of this function is deprecated.
  */
 
 /* N.B. The IV for this mode is _four times_ the block size */
@@ -321,3 +295,4 @@ void AES_bi_ige_encrypt(const unsigned char *in, unsigned char *out,
         }
     }
 }
+#endif