NetBSD/sys/crypto/aes/aes.h

70 lines
2.4 KiB
C

/* $NetBSD: aes.h,v 1.4 2020/07/25 22:14:35 riastradh Exp $ */
/*-
* Copyright (c) 2020 The NetBSD Foundation, Inc.
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _CRYPTO_AES_AES_H
#define _CRYPTO_AES_AES_H
#include <sys/types.h>
#include <sys/cdefs.h>
/*
* struct aes
*
* Expanded round keys.
*/
union aes {
uint32_t aes_rk[60];
uint64_t aes_rk64[30];
} __aligned(16);
#define AES_128_NROUNDS 10
#define AES_192_NROUNDS 12
#define AES_256_NROUNDS 14
struct aesenc {
union aes aese_aes;
};
struct aesdec {
union aes aesd_aes;
};
uint32_t aes_setenckey128(struct aesenc *, const uint8_t[static 16]);
uint32_t aes_setenckey192(struct aesenc *, const uint8_t[static 24]);
uint32_t aes_setenckey256(struct aesenc *, const uint8_t[static 32]);
uint32_t aes_setdeckey128(struct aesdec *, const uint8_t[static 16]);
uint32_t aes_setdeckey192(struct aesdec *, const uint8_t[static 24]);
uint32_t aes_setdeckey256(struct aesdec *, const uint8_t[static 32]);
void aes_enc(const struct aesenc *, const uint8_t[static 16],
uint8_t[static 16], uint32_t);
void aes_dec(const struct aesdec *, const uint8_t[static 16],
uint8_t[static 16], uint32_t);
#endif /* _CRYPTO_AES_AES_H */