147 lines
4.5 KiB
C
147 lines
4.5 KiB
C
/*-
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* Copyright 2013 John-Mark Gurney <jmg@FreeBSD.org>
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* Copyright 2015 Netflix, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#ifndef _AESENCDEC_H_
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#define _AESENCDEC_H_
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#include <crypto/aesni/aesni_os.h>
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#include <wmmintrin.h>
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static inline void
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aesni_enc8(int rounds, const __m128i *keysched, __m128i a,
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__m128i b, __m128i c, __m128i d, __m128i e, __m128i f, __m128i g,
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__m128i h, __m128i out[8])
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{
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int i;
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a ^= keysched[0];
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b ^= keysched[0];
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c ^= keysched[0];
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d ^= keysched[0];
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e ^= keysched[0];
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f ^= keysched[0];
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g ^= keysched[0];
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h ^= keysched[0];
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for (i = 0; i < rounds; i++) {
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a = _mm_aesenc_si128(a, keysched[i + 1]);
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b = _mm_aesenc_si128(b, keysched[i + 1]);
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c = _mm_aesenc_si128(c, keysched[i + 1]);
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d = _mm_aesenc_si128(d, keysched[i + 1]);
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e = _mm_aesenc_si128(e, keysched[i + 1]);
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f = _mm_aesenc_si128(f, keysched[i + 1]);
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g = _mm_aesenc_si128(g, keysched[i + 1]);
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h = _mm_aesenc_si128(h, keysched[i + 1]);
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}
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out[0] = _mm_aesenclast_si128(a, keysched[i + 1]);
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out[1] = _mm_aesenclast_si128(b, keysched[i + 1]);
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out[2] = _mm_aesenclast_si128(c, keysched[i + 1]);
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out[3] = _mm_aesenclast_si128(d, keysched[i + 1]);
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out[4] = _mm_aesenclast_si128(e, keysched[i + 1]);
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out[5] = _mm_aesenclast_si128(f, keysched[i + 1]);
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out[6] = _mm_aesenclast_si128(g, keysched[i + 1]);
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out[7] = _mm_aesenclast_si128(h, keysched[i + 1]);
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}
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static inline void
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aesni_dec8(int rounds, const __m128i *keysched, __m128i a,
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__m128i b, __m128i c, __m128i d, __m128i e, __m128i f, __m128i g,
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__m128i h, __m128i out[8])
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{
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int i;
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a ^= keysched[0];
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b ^= keysched[0];
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c ^= keysched[0];
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d ^= keysched[0];
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e ^= keysched[0];
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f ^= keysched[0];
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g ^= keysched[0];
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h ^= keysched[0];
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for (i = 0; i < rounds; i++) {
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a = _mm_aesdec_si128(a, keysched[i + 1]);
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b = _mm_aesdec_si128(b, keysched[i + 1]);
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c = _mm_aesdec_si128(c, keysched[i + 1]);
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d = _mm_aesdec_si128(d, keysched[i + 1]);
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e = _mm_aesdec_si128(e, keysched[i + 1]);
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f = _mm_aesdec_si128(f, keysched[i + 1]);
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g = _mm_aesdec_si128(g, keysched[i + 1]);
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h = _mm_aesdec_si128(h, keysched[i + 1]);
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}
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out[0] = _mm_aesdeclast_si128(a, keysched[i + 1]);
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out[1] = _mm_aesdeclast_si128(b, keysched[i + 1]);
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out[2] = _mm_aesdeclast_si128(c, keysched[i + 1]);
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out[3] = _mm_aesdeclast_si128(d, keysched[i + 1]);
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out[4] = _mm_aesdeclast_si128(e, keysched[i + 1]);
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out[5] = _mm_aesdeclast_si128(f, keysched[i + 1]);
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out[6] = _mm_aesdeclast_si128(g, keysched[i + 1]);
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out[7] = _mm_aesdeclast_si128(h, keysched[i + 1]);
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}
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/* rounds is passed in as rounds - 1 */
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static inline __m128i
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aesni_enc(int rounds, const __m128i *keysched, const __m128i from)
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{
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__m128i tmp;
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int i;
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tmp = from ^ keysched[0];
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for (i = 1; i < rounds; i += 2) {
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tmp = _mm_aesenc_si128(tmp, keysched[i]);
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tmp = _mm_aesenc_si128(tmp, keysched[i + 1]);
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}
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tmp = _mm_aesenc_si128(tmp, keysched[rounds]);
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return _mm_aesenclast_si128(tmp, keysched[rounds + 1]);
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}
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static inline __m128i
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aesni_dec(int rounds, const __m128i *keysched, const __m128i from)
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{
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__m128i tmp;
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int i;
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tmp = from ^ keysched[0];
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for (i = 1; i < rounds; i += 2) {
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tmp = _mm_aesdec_si128(tmp, keysched[i]);
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tmp = _mm_aesdec_si128(tmp, keysched[i + 1]);
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}
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tmp = _mm_aesdec_si128(tmp, keysched[rounds]);
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return _mm_aesdeclast_si128(tmp, keysched[rounds + 1]);
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}
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#endif /* _AESENCDEC_H_ */
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