mirror of
https://github.com/ClassiCube/ClassiCube.git
synced 2025-09-08 14:56:12 -04:00
123 lines
3.4 KiB
C
123 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 2017 Thomas Pornin <pornin@bolet.org>
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#define BR_ENABLE_INTRINSICS 1
|
|
#include "inner.h"
|
|
|
|
#if BR_AES_X86NI
|
|
|
|
/* see bearssl_block.h */
|
|
const br_block_cbcenc_class *
|
|
br_aes_x86ni_cbcenc_get_vtable(void)
|
|
{
|
|
return br_aes_x86ni_supported() ? &br_aes_x86ni_cbcenc_vtable : NULL;
|
|
}
|
|
|
|
/* see bearssl_block.h */
|
|
void
|
|
br_aes_x86ni_cbcenc_init(br_aes_x86ni_cbcenc_keys *ctx,
|
|
const void *key, size_t len)
|
|
{
|
|
ctx->vtable = &br_aes_x86ni_cbcenc_vtable;
|
|
ctx->num_rounds = br_aes_x86ni_keysched_enc(ctx->skey.skni, key, len);
|
|
}
|
|
|
|
BR_TARGETS_X86_UP
|
|
|
|
/* see bearssl_block.h */
|
|
BR_TARGET("sse2,aes")
|
|
void
|
|
br_aes_x86ni_cbcenc_run(const br_aes_x86ni_cbcenc_keys *ctx,
|
|
void *iv, void *data, size_t len)
|
|
{
|
|
unsigned char *buf;
|
|
unsigned num_rounds;
|
|
__m128i sk[15], ivx;
|
|
unsigned u;
|
|
|
|
buf = data;
|
|
ivx = _mm_loadu_si128(iv);
|
|
num_rounds = ctx->num_rounds;
|
|
for (u = 0; u <= num_rounds; u ++) {
|
|
sk[u] = _mm_loadu_si128((void *)(ctx->skey.skni + (u << 4)));
|
|
}
|
|
while (len > 0) {
|
|
__m128i x;
|
|
|
|
x = _mm_xor_si128(_mm_loadu_si128((void *)buf), ivx);
|
|
x = _mm_xor_si128(x, sk[0]);
|
|
x = _mm_aesenc_si128(x, sk[1]);
|
|
x = _mm_aesenc_si128(x, sk[2]);
|
|
x = _mm_aesenc_si128(x, sk[3]);
|
|
x = _mm_aesenc_si128(x, sk[4]);
|
|
x = _mm_aesenc_si128(x, sk[5]);
|
|
x = _mm_aesenc_si128(x, sk[6]);
|
|
x = _mm_aesenc_si128(x, sk[7]);
|
|
x = _mm_aesenc_si128(x, sk[8]);
|
|
x = _mm_aesenc_si128(x, sk[9]);
|
|
if (num_rounds == 10) {
|
|
x = _mm_aesenclast_si128(x, sk[10]);
|
|
} else if (num_rounds == 12) {
|
|
x = _mm_aesenc_si128(x, sk[10]);
|
|
x = _mm_aesenc_si128(x, sk[11]);
|
|
x = _mm_aesenclast_si128(x, sk[12]);
|
|
} else {
|
|
x = _mm_aesenc_si128(x, sk[10]);
|
|
x = _mm_aesenc_si128(x, sk[11]);
|
|
x = _mm_aesenc_si128(x, sk[12]);
|
|
x = _mm_aesenc_si128(x, sk[13]);
|
|
x = _mm_aesenclast_si128(x, sk[14]);
|
|
}
|
|
ivx = x;
|
|
_mm_storeu_si128((void *)buf, x);
|
|
buf += 16;
|
|
len -= 16;
|
|
}
|
|
_mm_storeu_si128(iv, ivx);
|
|
}
|
|
|
|
BR_TARGETS_X86_DOWN
|
|
|
|
/* see bearssl_block.h */
|
|
const br_block_cbcenc_class br_aes_x86ni_cbcenc_vtable = {
|
|
sizeof(br_aes_x86ni_cbcenc_keys),
|
|
16,
|
|
4,
|
|
(void (*)(const br_block_cbcenc_class **, const void *, size_t))
|
|
&br_aes_x86ni_cbcenc_init,
|
|
(void (*)(const br_block_cbcenc_class *const *, void *, void *, size_t))
|
|
&br_aes_x86ni_cbcenc_run
|
|
};
|
|
|
|
#else
|
|
|
|
/* see bearssl_block.h */
|
|
const br_block_cbcenc_class *
|
|
br_aes_x86ni_cbcenc_get_vtable(void)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
#endif
|