/*-
* Copyright 2013 John-Mark Gurney <jmg@FreeBSD.org>
* All rights reserved.
*
* Copyright 2015 Netflix, Inc.
*
* 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 _AESENCDEC_H_
#define _AESENCDEC_H_
#include <crypto/aesni/aesni_os.h>
#include <wmmintrin.h>
static inline void
aesni_enc8(int rounds, const __m128i *keysched, __m128i a,
__m128i b, __m128i c, __m128i d, __m128i e, __m128i f, __m128i g,
__m128i h, __m128i out[8])
{
int i;
a ^= keysched[0];
b ^= keysched[0];
c ^= keysched[0];
d ^= keysched[0];
e ^= keysched[0];
f ^= keysched[0];
g ^= keysched[0];
h ^= keysched[0];
for (i = 0; i < rounds; i++) {
a = _mm_aesenc_si128(a, keysched[i + 1]);
b = _mm_aesenc_si128(b, keysched[i + 1]);
c = _mm_aesenc_si128(c, keysched[i + 1]);
d = _mm_aesenc_si128(d, keysched[i + 1]);
e = _mm_aesenc_si128(e, keysched[i + 1]);
f = _mm_aesenc_si128(f, keysched[i + 1]);
g = _mm_aesenc_si128(g, keysched[i + 1]);
h = _mm_aesenc_si128(h, keysched[i + 1]);
}
out[0] = _mm_aesenclast_si128(a, keysched[i + 1]);
out[1] = _mm_aesenclast_si128(b, keysched[i + 1]);
out[2] = _mm_aesenclast_si128(c, keysched[i + 1]);
out[3] = _mm_aesenclast_si128(d, keysched[i + 1]);
out[4] = _mm_aesenclast_si128(e, keysched[i + 1]);
out[5] = _mm_aesenclast_si128(f, keysched[i + 1]);
out[6] = _mm_aesenclast_si128(g, keysched[i + 1]);
out[7] = _mm_aesenclast_si128(h, keysched[i + 1]);
}
static inline void
aesni_dec8(int rounds, const __m128i *keysched, __m128i a,
__m128i b, __m128i c, __m128i d, __m128i e, __m128i f, __m128i g,
__m128i h, __m128i out[8])
{
int i;
a ^= keysched[0];
b ^= keysched[0];
c ^= keysched[0];
d ^= keysched[0];
e ^= keysched[0];
f ^= keysched[0];
g ^= keysched[0];
h ^= keysched[0];
for (i = 0; i < rounds; i++) {
a = _mm_aesdec_si128(a, keysched[i + 1]);
b = _mm_aesdec_si128(b, keysched[i + 1]);
c = _mm_aesdec_si128(c, keysched[i + 1]);
d = _mm_aesdec_si128(d, keysched[i + 1]);
e = _mm_aesdec_si128(e, keysched[i + 1]);
f = _mm_aesdec_si128(f, keysched[i + 1]);
g = _mm_aesdec_si128(g, keysched[i + 1]);
h = _mm_aesdec_si128(h, keysched[i + 1]);
}
out[0] = _mm_aesdeclast_si128(a, keysched[i + 1]);
out[1] = _mm_aesdeclast_si128(b, keysched[i + 1]);
out[2] = _mm_aesdeclast_si128(c, keysched[i + 1]);
out[3] = _mm_aesdeclast_si128(d, keysched[i + 1]);
out[4] = _mm_aesdeclast_si128(e, keysched[i + 1]);
out[5] = _mm_aesdeclast_si128(f, keysched[i + 1]);
out[6] = _mm_aesdeclast_si128(g, keysched[i + 1]);
out[7] = _mm_aesdeclast_si128(h, keysched[i + 1]);
}
/* rounds is passed in as rounds - 1 */
static inline __m128i
aesni_enc(int rounds, const __m128i *keysched, const __m128i from)
{
__m128i tmp;
int i;
tmp = from ^ keysched[0];
for (i = 1; i < rounds; i += 2) {
tmp = _mm_aesenc_si128(tmp, keysched[i]);
tmp = _mm_aesenc_si128(tmp, keysched[i + 1]);
}
tmp = _mm_aesenc_si128(tmp, keysched[rounds]);
return _mm_aesenclast_si128(tmp, keysched[rounds + 1]);
}
static inline __m128i
aesni_dec(int rounds, const __m128i *keysched, const __m128i from)
{
__m128i tmp;
int i;
tmp = from ^ keysched[0];
for (i = 1; i < rounds; i += 2) {
tmp = _mm_aesdec_si128(tmp, keysched[i]);
tmp = _mm_aesdec_si128(tmp, keysched[i + 1]);
}
tmp = _mm_aesdec_si128(tmp, keysched[rounds]);
return _mm_aesdeclast_si128(tmp, keysched[rounds + 1]);
}
#endif /* _AESENCDEC_H_ */
