diff options
Diffstat (limited to 'crypto/modes/modes_lcl.h')
| -rw-r--r-- | crypto/modes/modes_lcl.h | 55 |
1 files changed, 51 insertions, 4 deletions
diff --git a/crypto/modes/modes_lcl.h b/crypto/modes/modes_lcl.h index fe14ec7002f0..f2ae01d11afd 100644 --- a/crypto/modes/modes_lcl.h +++ b/crypto/modes/modes_lcl.h @@ -1,8 +1,10 @@ -/* ==================================================================== - * Copyright (c) 2010 The OpenSSL Project. All rights reserved. +/* + * Copyright 2010-2018 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> @@ -71,6 +73,7 @@ typedef unsigned char u8; # endif # elif defined(_MSC_VER) # if _MSC_VER>=1300 +# include <stdlib.h> # pragma intrinsic(_byteswap_uint64,_byteswap_ulong) # define BSWAP8(x) _byteswap_uint64((u64)(x)) # define BSWAP4(x) _byteswap_ulong((u32)(x)) @@ -125,6 +128,9 @@ struct gcm128_context { unsigned int mres, ares; block128_f block; void *key; +#if !defined(OPENSSL_SMALL_FOOTPRINT) + unsigned char Xn[48]; +#endif }; struct xts128_context { @@ -141,3 +147,44 @@ struct ccm128_context { block128_f block; void *key; }; + +#ifndef OPENSSL_NO_OCB + +typedef union { + u64 a[2]; + unsigned char c[16]; +} OCB_BLOCK; +# 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 encrypt; + 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; + OCB_BLOCK l_star; + OCB_BLOCK l_dollar; + OCB_BLOCK *l; + /* Must be reset for each session */ + struct { + u64 blocks_hashed; + u64 blocks_processed; + OCB_BLOCK offset_aad; + OCB_BLOCK sum; + OCB_BLOCK offset; + OCB_BLOCK checksum; + } sess; +}; +#endif /* OPENSSL_NO_OCB */ |