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sys/boot/boot_crypto/boot_crypto_aes.h
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/*- | |||||
* Copyright (c) 2016 Eric McCorkle | |||||
* 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. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
* ANY EXPRESS 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 AUTHOR OR 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. | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
#ifndef _BOOT_CRYPTO_AES_H_ | |||||
#define _BOOT_CRYPTO_AES_H_ | |||||
#include "boot_crypto_types.h" | |||||
#include <crypto/rijndael/rijndael-api-fst.h> | |||||
#define AES_XTS_BLOCKSIZE 16 | |||||
#define AES_XTS_IVSIZE 8 | |||||
#define AES_XTS_ALPHA 0x87 /* GF(2^128) generator polynomial */ | |||||
struct aes_xts_ctx { | |||||
rijndael_ctx key1; | |||||
rijndael_ctx key2; | |||||
u_int8_t tweak[AES_XTS_BLOCKSIZE]; | |||||
}; | |||||
struct aes_cbc_ctx { | |||||
keyInstance aeskey; | |||||
cipherInstance cipher; | |||||
}; | |||||
extern const symmetric_alg_t alg_aes_cbc; | |||||
extern const symmetric_alg_t alg_aes_xts; | |||||
#endif |