mirror of
https://github.com/rspamd/rspamd.git
synced 2024-09-13 15:45:47 +02:00
180 lines
5.9 KiB
C
180 lines
5.9 KiB
C
/*
|
|
* Copyright (c) 2017, Vsevolod Stakhov
|
|
* Copyright (c) 2017, Frank Denis
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * 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 AUTHOR ''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 AUTHOR 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.
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "ottery-internal.h"
|
|
#include "cryptobox.h"
|
|
|
|
#if defined(__x86_64__) && defined(RSPAMD_HAS_TARGET_ATTR)
|
|
#pragma GCC push_options
|
|
#pragma GCC target("aes")
|
|
#ifndef __SSE2__
|
|
#define __SSE2__
|
|
#endif
|
|
#ifndef __SSE__
|
|
#define __SSE__
|
|
#endif
|
|
#ifndef __AES__
|
|
#define __AES__
|
|
#endif
|
|
#include <immintrin.h>
|
|
#define ROUNDS 10
|
|
|
|
typedef struct RSPAMD_ALIGNED(16) aes_rng_state {
|
|
__m128i round_keys[ROUNDS + 1];
|
|
__m128i counter;
|
|
} aes_stream_state;
|
|
|
|
|
|
#define STATE_LEN sizeof(aes_stream_state)
|
|
#define STATE_BYTES 16
|
|
|
|
#define OUTPUT_LEN 1024
|
|
|
|
static void
|
|
aes_key_expand (__m128i round_keys[ROUNDS + 1], __m128i t) __attribute__((target("aes")));
|
|
|
|
static void
|
|
aes_key_expand (__m128i round_keys[ROUNDS + 1], __m128i t)
|
|
{
|
|
__m128i t1;
|
|
|
|
#define DO_ROUND_KEY(ROUND, RC) \
|
|
do { \
|
|
t1 = _mm_aeskeygenassist_si128(t, (RC)); \
|
|
round_keys[ROUND] = t; \
|
|
t = _mm_xor_si128(t, _mm_slli_si128(t, 4)); \
|
|
t = _mm_xor_si128(t, _mm_slli_si128(t, 8)); \
|
|
t = _mm_xor_si128(t, _mm_shuffle_epi32(t1, 0xff)); \
|
|
} while (0)
|
|
|
|
DO_ROUND_KEY(0, 1);
|
|
DO_ROUND_KEY(1, 2);
|
|
DO_ROUND_KEY(2, 4);
|
|
DO_ROUND_KEY(3, 8);
|
|
DO_ROUND_KEY(4, 16);
|
|
DO_ROUND_KEY(5, 32);
|
|
DO_ROUND_KEY(6, 64);
|
|
DO_ROUND_KEY(7, 128);
|
|
DO_ROUND_KEY(8, 27);
|
|
DO_ROUND_KEY(9, 54);
|
|
round_keys[10] = t;
|
|
}
|
|
|
|
/*
|
|
* Computes one 128 bytes block and refresh keys
|
|
*/
|
|
static void
|
|
aes_round(unsigned char *buf, struct aes_rng_state *st) __attribute__((target("aes")));
|
|
static void
|
|
aes_round(unsigned char *buf, struct aes_rng_state *st)
|
|
{
|
|
const __m128i one = _mm_set_epi64x(0, 1);
|
|
__m128i *round_keys = st->round_keys;
|
|
__m128i c0, c1, c2, c3, c4, c5, c6, c7;
|
|
__m128i r0, r1, r2, r3, r4, r5, r6, r7;
|
|
__m128i s0, s1, s2, s3, s4, s5, s6, s7;
|
|
size_t i;
|
|
|
|
#define COMPUTE_ROUNDS(N) \
|
|
do { \
|
|
r##N = _mm_aesenc_si128( _mm_xor_si128(c##N, round_keys[0]), round_keys[1]); \
|
|
r##N = _mm_aesenc_si128(_mm_aesenc_si128(r##N, round_keys[2]), round_keys[3]); \
|
|
r##N = _mm_aesenc_si128(_mm_aesenc_si128(r##N, round_keys[4]), round_keys[5]); \
|
|
s##N = r##N; \
|
|
r##N = _mm_aesenc_si128(_mm_aesenc_si128(r##N, round_keys[6]), round_keys[7]); \
|
|
r##N = _mm_aesenc_si128(_mm_aesenc_si128(r##N, round_keys[8]), round_keys[9]); \
|
|
r##N = _mm_xor_si128(s##N, _mm_aesenclast_si128(r##N, round_keys[10])); \
|
|
} while (0)
|
|
|
|
c0 = st->counter;
|
|
|
|
for (i = 0; i < OUTPUT_LEN / 128; i ++) {
|
|
c1 = _mm_add_epi64 (c0, one);
|
|
c2 = _mm_add_epi64 (c1, one);
|
|
c3 = _mm_add_epi64 (c2, one);
|
|
c4 = _mm_add_epi64 (c3, one);
|
|
c5 = _mm_add_epi64 (c4, one);
|
|
c6 = _mm_add_epi64 (c5, one);
|
|
c7 = _mm_add_epi64 (c6, one);
|
|
COMPUTE_ROUNDS(0);
|
|
COMPUTE_ROUNDS(1);
|
|
COMPUTE_ROUNDS(2);
|
|
COMPUTE_ROUNDS(3);
|
|
COMPUTE_ROUNDS(4);
|
|
COMPUTE_ROUNDS(5);
|
|
COMPUTE_ROUNDS(6);
|
|
COMPUTE_ROUNDS(7);
|
|
c0 = _mm_add_epi64 (c7, one);
|
|
_mm_storeu_si128 ((__m128i *) (void *) (buf + 0), r0);
|
|
_mm_storeu_si128 ((__m128i *) (void *) (buf + 16), r1);
|
|
_mm_storeu_si128 ((__m128i *) (void *) (buf + 32), r2);
|
|
_mm_storeu_si128 ((__m128i *) (void *) (buf + 48), r3);
|
|
_mm_storeu_si128 ((__m128i *) (void *) (buf + 64), r4);
|
|
_mm_storeu_si128 ((__m128i *) (void *) (buf + 80), r5);
|
|
_mm_storeu_si128 ((__m128i *) (void *) (buf + 96), r6);
|
|
_mm_storeu_si128 ((__m128i *) (void *) (buf + 112), r7);
|
|
buf += 128;
|
|
}
|
|
|
|
st->counter = c0;
|
|
c0 = _mm_setzero_si128();
|
|
COMPUTE_ROUNDS(0);
|
|
aes_key_expand(round_keys, r0);
|
|
}
|
|
|
|
|
|
static void
|
|
aes_cryptobox_state_setup (void *state_, const uint8_t *bytes)
|
|
{
|
|
struct aes_rng_state *x = state_;
|
|
|
|
aes_key_expand (x->round_keys,
|
|
_mm_loadu_si128((const __m128i *) (const void *)bytes));
|
|
}
|
|
|
|
static void
|
|
aes_cryptobox_generate (void *state_, uint8_t *output, uint32_t idx)
|
|
{
|
|
struct aes_rng_state *x = state_;
|
|
|
|
aes_round(output, x);
|
|
}
|
|
|
|
#define PRF_AES(r) { \
|
|
"AES-" #r, \
|
|
"AES-" #r "-NOSIMD", \
|
|
"AES-" #r "-NOSIMD-DEFAULT", \
|
|
STATE_LEN, \
|
|
STATE_BYTES, \
|
|
OUTPUT_LEN, \
|
|
OTTERY_CPUCAP_AES, \
|
|
aes_cryptobox_state_setup, \
|
|
aes_cryptobox_generate \
|
|
}
|
|
|
|
const struct ottery_prf ottery_prf_aes_cryptobox_ = PRF_AES(128);
|
|
#endif /* x86_64 */
|