-/* ====================================================================
- * Copyright (c) 2010 The OpenSSL Project. All rights reserved.
+/*
+ * Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * Redistribution and use is governed by OpenSSL license.
- * ====================================================================
+ * 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 <openssl/modes.h>
#ifndef OPENSSL_NO_OCB
-# ifdef STRICT_ALIGNMENT
-typedef struct {
- unsigned char a[16];
-} OCB_BLOCK;
-# define ocb_block16_xor(in1,in2,out) \
- ocb_block_xor((in1)->a,(in2)->a,16,(out)->a)
-# else /* STRICT_ALIGNMENT */
-typedef struct {
- u64 a;
- u64 b;
+typedef union {
+ u64 a[2];
+ unsigned char c[16];
} OCB_BLOCK;
-# define ocb_block16_xor(in1,in2,out) \
- (out)->a=(in1)->a^(in2)->a; (out)->b=(in1)->b^(in2)->b;
-# endif /* STRICT_ALIGNMENT */
+# define ocb_block16_xor(in1,in2,out) \
+ ( (out)->a[0]=(in1)->a[0]^(in2)->a[0], \
+ (out)->a[1]=(in1)->a[1]^(in2)->a[1] )
+# if STRICT_ALIGNMENT
+# define ocb_block16_xor_misaligned(in1,in2,out) \
+ ocb_block_xor((in1)->c,(in2)->c,16,(out)->c)
+# else
+# define ocb_block16_xor_misaligned ocb_block16_xor
+# endif
struct ocb128_context {
/* Need both encrypt and decrypt key schedules for decryption */
block128_f decrypt;
void *keyenc;
void *keydec;
+ ocb128_f stream; /* direction dependent */
/* Key dependent variables. Can be reused if key remains the same */
size_t l_index;
size_t max_l_index;