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mshabal_sse4.c
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mshabal_sse4.c
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/*
* Parallel implementation of Shabal, using the SSE2 unit. This code
* compiles and runs on x86 architectures, in 32-bit or 64-bit mode,
* which possess a SSE2-compatible SIMD unit.
*
*
* (c) 2010 SAPHIR project. This software is provided 'as-is', without
* any epxress or implied warranty. In no event will the authors be held
* liable for any damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to no restriction.
*
* Technical remarks and questions can be addressed to:
* <thomas.pornin@cryptolog.com>
*/
#include <stddef.h>
#include <string.h>
#include <emmintrin.h>
#include "mshabal.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _MSC_VER
#pragma warning (disable: 4146)
#endif
typedef mshabal_u32 u32;
#define C32(x) ((u32)x ## UL)
#define T32(x) ((x) & C32(0xFFFFFFFF))
#define ROTL32(x, n) T32(((x) << (n)) | ((x) >> (32 - (n))))
static void
sse4_mshabal_compress(mshabal_context *sc,
const unsigned char *buf0, const unsigned char *buf1,
const unsigned char *buf2, const unsigned char *buf3,
size_t num)
{
union {
u32 words[64];
__m128i data[16];
} u;
size_t j;
__m128i A[12], B[16], C[16];
__m128i one;
for (j = 0; j < 12; j++)
A[j] = _mm_loadu_si128((__m128i *)sc->state + j);
for (j = 0; j < 16; j++) {
B[j] = _mm_loadu_si128((__m128i *)sc->state + j + 12);
C[j] = _mm_loadu_si128((__m128i *)sc->state + j + 28);
}
one = _mm_set1_epi32(C32(0xFFFFFFFF));
#define M(i) _mm_load_si128(u.data + (i))
while (num-- > 0) {
for (j = 0; j < 64; j += 4) {
u.words[j + 0] = *(u32 *)(buf0 + j);
u.words[j + 1] = *(u32 *)(buf1 + j);
u.words[j + 2] = *(u32 *)(buf2 + j);
u.words[j + 3] = *(u32 *)(buf3 + j);
}
for (j = 0; j < 16; j++)
B[j] = _mm_add_epi32(B[j], M(j));
A[0] = _mm_xor_si128(A[0], _mm_set1_epi32(sc->Wlow));
A[1] = _mm_xor_si128(A[1], _mm_set1_epi32(sc->Whigh));
for (j = 0; j < 16; j++)
B[j] = _mm_or_si128(_mm_slli_epi32(B[j], 17),
_mm_srli_epi32(B[j], 15));
#define PP(xa0, xa1, xb0, xb1, xb2, xb3, xc, xm) do { \
__m128i tt; \
tt = _mm_or_si128(_mm_slli_epi32(xa1, 15), \
_mm_srli_epi32(xa1, 17)); \
tt = _mm_add_epi32(_mm_slli_epi32(tt, 2), tt); \
tt = _mm_xor_si128(_mm_xor_si128(xa0, tt), xc); \
tt = _mm_add_epi32(_mm_slli_epi32(tt, 1), tt); \
tt = _mm_xor_si128( \
_mm_xor_si128(tt, xb1), \
_mm_xor_si128(_mm_andnot_si128(xb3, xb2), xm)); \
xa0 = tt; \
tt = xb0; \
tt = _mm_or_si128(_mm_slli_epi32(tt, 1), \
_mm_srli_epi32(tt, 31)); \
xb0 = _mm_xor_si128(tt, _mm_xor_si128(xa0, one)); \
} while (0)
PP(A[0x0], A[0xB], B[0x0], B[0xD], B[0x9], B[0x6], C[0x8], M(0x0));
PP(A[0x1], A[0x0], B[0x1], B[0xE], B[0xA], B[0x7], C[0x7], M(0x1));
PP(A[0x2], A[0x1], B[0x2], B[0xF], B[0xB], B[0x8], C[0x6], M(0x2));
PP(A[0x3], A[0x2], B[0x3], B[0x0], B[0xC], B[0x9], C[0x5], M(0x3));
PP(A[0x4], A[0x3], B[0x4], B[0x1], B[0xD], B[0xA], C[0x4], M(0x4));
PP(A[0x5], A[0x4], B[0x5], B[0x2], B[0xE], B[0xB], C[0x3], M(0x5));
PP(A[0x6], A[0x5], B[0x6], B[0x3], B[0xF], B[0xC], C[0x2], M(0x6));
PP(A[0x7], A[0x6], B[0x7], B[0x4], B[0x0], B[0xD], C[0x1], M(0x7));
PP(A[0x8], A[0x7], B[0x8], B[0x5], B[0x1], B[0xE], C[0x0], M(0x8));
PP(A[0x9], A[0x8], B[0x9], B[0x6], B[0x2], B[0xF], C[0xF], M(0x9));
PP(A[0xA], A[0x9], B[0xA], B[0x7], B[0x3], B[0x0], C[0xE], M(0xA));
PP(A[0xB], A[0xA], B[0xB], B[0x8], B[0x4], B[0x1], C[0xD], M(0xB));
PP(A[0x0], A[0xB], B[0xC], B[0x9], B[0x5], B[0x2], C[0xC], M(0xC));
PP(A[0x1], A[0x0], B[0xD], B[0xA], B[0x6], B[0x3], C[0xB], M(0xD));
PP(A[0x2], A[0x1], B[0xE], B[0xB], B[0x7], B[0x4], C[0xA], M(0xE));
PP(A[0x3], A[0x2], B[0xF], B[0xC], B[0x8], B[0x5], C[0x9], M(0xF));
PP(A[0x4], A[0x3], B[0x0], B[0xD], B[0x9], B[0x6], C[0x8], M(0x0));
PP(A[0x5], A[0x4], B[0x1], B[0xE], B[0xA], B[0x7], C[0x7], M(0x1));
PP(A[0x6], A[0x5], B[0x2], B[0xF], B[0xB], B[0x8], C[0x6], M(0x2));
PP(A[0x7], A[0x6], B[0x3], B[0x0], B[0xC], B[0x9], C[0x5], M(0x3));
PP(A[0x8], A[0x7], B[0x4], B[0x1], B[0xD], B[0xA], C[0x4], M(0x4));
PP(A[0x9], A[0x8], B[0x5], B[0x2], B[0xE], B[0xB], C[0x3], M(0x5));
PP(A[0xA], A[0x9], B[0x6], B[0x3], B[0xF], B[0xC], C[0x2], M(0x6));
PP(A[0xB], A[0xA], B[0x7], B[0x4], B[0x0], B[0xD], C[0x1], M(0x7));
PP(A[0x0], A[0xB], B[0x8], B[0x5], B[0x1], B[0xE], C[0x0], M(0x8));
PP(A[0x1], A[0x0], B[0x9], B[0x6], B[0x2], B[0xF], C[0xF], M(0x9));
PP(A[0x2], A[0x1], B[0xA], B[0x7], B[0x3], B[0x0], C[0xE], M(0xA));
PP(A[0x3], A[0x2], B[0xB], B[0x8], B[0x4], B[0x1], C[0xD], M(0xB));
PP(A[0x4], A[0x3], B[0xC], B[0x9], B[0x5], B[0x2], C[0xC], M(0xC));
PP(A[0x5], A[0x4], B[0xD], B[0xA], B[0x6], B[0x3], C[0xB], M(0xD));
PP(A[0x6], A[0x5], B[0xE], B[0xB], B[0x7], B[0x4], C[0xA], M(0xE));
PP(A[0x7], A[0x6], B[0xF], B[0xC], B[0x8], B[0x5], C[0x9], M(0xF));
PP(A[0x8], A[0x7], B[0x0], B[0xD], B[0x9], B[0x6], C[0x8], M(0x0));
PP(A[0x9], A[0x8], B[0x1], B[0xE], B[0xA], B[0x7], C[0x7], M(0x1));
PP(A[0xA], A[0x9], B[0x2], B[0xF], B[0xB], B[0x8], C[0x6], M(0x2));
PP(A[0xB], A[0xA], B[0x3], B[0x0], B[0xC], B[0x9], C[0x5], M(0x3));
PP(A[0x0], A[0xB], B[0x4], B[0x1], B[0xD], B[0xA], C[0x4], M(0x4));
PP(A[0x1], A[0x0], B[0x5], B[0x2], B[0xE], B[0xB], C[0x3], M(0x5));
PP(A[0x2], A[0x1], B[0x6], B[0x3], B[0xF], B[0xC], C[0x2], M(0x6));
PP(A[0x3], A[0x2], B[0x7], B[0x4], B[0x0], B[0xD], C[0x1], M(0x7));
PP(A[0x4], A[0x3], B[0x8], B[0x5], B[0x1], B[0xE], C[0x0], M(0x8));
PP(A[0x5], A[0x4], B[0x9], B[0x6], B[0x2], B[0xF], C[0xF], M(0x9));
PP(A[0x6], A[0x5], B[0xA], B[0x7], B[0x3], B[0x0], C[0xE], M(0xA));
PP(A[0x7], A[0x6], B[0xB], B[0x8], B[0x4], B[0x1], C[0xD], M(0xB));
PP(A[0x8], A[0x7], B[0xC], B[0x9], B[0x5], B[0x2], C[0xC], M(0xC));
PP(A[0x9], A[0x8], B[0xD], B[0xA], B[0x6], B[0x3], C[0xB], M(0xD));
PP(A[0xA], A[0x9], B[0xE], B[0xB], B[0x7], B[0x4], C[0xA], M(0xE));
PP(A[0xB], A[0xA], B[0xF], B[0xC], B[0x8], B[0x5], C[0x9], M(0xF));
A[0xB] = _mm_add_epi32(A[0xB], C[0x6]);
A[0xA] = _mm_add_epi32(A[0xA], C[0x5]);
A[0x9] = _mm_add_epi32(A[0x9], C[0x4]);
A[0x8] = _mm_add_epi32(A[0x8], C[0x3]);
A[0x7] = _mm_add_epi32(A[0x7], C[0x2]);
A[0x6] = _mm_add_epi32(A[0x6], C[0x1]);
A[0x5] = _mm_add_epi32(A[0x5], C[0x0]);
A[0x4] = _mm_add_epi32(A[0x4], C[0xF]);
A[0x3] = _mm_add_epi32(A[0x3], C[0xE]);
A[0x2] = _mm_add_epi32(A[0x2], C[0xD]);
A[0x1] = _mm_add_epi32(A[0x1], C[0xC]);
A[0x0] = _mm_add_epi32(A[0x0], C[0xB]);
A[0xB] = _mm_add_epi32(A[0xB], C[0xA]);
A[0xA] = _mm_add_epi32(A[0xA], C[0x9]);
A[0x9] = _mm_add_epi32(A[0x9], C[0x8]);
A[0x8] = _mm_add_epi32(A[0x8], C[0x7]);
A[0x7] = _mm_add_epi32(A[0x7], C[0x6]);
A[0x6] = _mm_add_epi32(A[0x6], C[0x5]);
A[0x5] = _mm_add_epi32(A[0x5], C[0x4]);
A[0x4] = _mm_add_epi32(A[0x4], C[0x3]);
A[0x3] = _mm_add_epi32(A[0x3], C[0x2]);
A[0x2] = _mm_add_epi32(A[0x2], C[0x1]);
A[0x1] = _mm_add_epi32(A[0x1], C[0x0]);
A[0x0] = _mm_add_epi32(A[0x0], C[0xF]);
A[0xB] = _mm_add_epi32(A[0xB], C[0xE]);
A[0xA] = _mm_add_epi32(A[0xA], C[0xD]);
A[0x9] = _mm_add_epi32(A[0x9], C[0xC]);
A[0x8] = _mm_add_epi32(A[0x8], C[0xB]);
A[0x7] = _mm_add_epi32(A[0x7], C[0xA]);
A[0x6] = _mm_add_epi32(A[0x6], C[0x9]);
A[0x5] = _mm_add_epi32(A[0x5], C[0x8]);
A[0x4] = _mm_add_epi32(A[0x4], C[0x7]);
A[0x3] = _mm_add_epi32(A[0x3], C[0x6]);
A[0x2] = _mm_add_epi32(A[0x2], C[0x5]);
A[0x1] = _mm_add_epi32(A[0x1], C[0x4]);
A[0x0] = _mm_add_epi32(A[0x0], C[0x3]);
#define SWAP_AND_SUB(xb, xc, xm) do { \
__m128i tmp; \
tmp = xb; \
xb = _mm_sub_epi32(xc, xm); \
xc = tmp; \
} while (0)
SWAP_AND_SUB(B[0x0], C[0x0], M(0x0));
SWAP_AND_SUB(B[0x1], C[0x1], M(0x1));
SWAP_AND_SUB(B[0x2], C[0x2], M(0x2));
SWAP_AND_SUB(B[0x3], C[0x3], M(0x3));
SWAP_AND_SUB(B[0x4], C[0x4], M(0x4));
SWAP_AND_SUB(B[0x5], C[0x5], M(0x5));
SWAP_AND_SUB(B[0x6], C[0x6], M(0x6));
SWAP_AND_SUB(B[0x7], C[0x7], M(0x7));
SWAP_AND_SUB(B[0x8], C[0x8], M(0x8));
SWAP_AND_SUB(B[0x9], C[0x9], M(0x9));
SWAP_AND_SUB(B[0xA], C[0xA], M(0xA));
SWAP_AND_SUB(B[0xB], C[0xB], M(0xB));
SWAP_AND_SUB(B[0xC], C[0xC], M(0xC));
SWAP_AND_SUB(B[0xD], C[0xD], M(0xD));
SWAP_AND_SUB(B[0xE], C[0xE], M(0xE));
SWAP_AND_SUB(B[0xF], C[0xF], M(0xF));
buf0 += 64;
buf1 += 64;
buf2 += 64;
buf3 += 64;
if (++sc->Wlow == 0)
sc->Whigh++;
}
for (j = 0; j < 12; j++)
_mm_storeu_si128((__m128i *)sc->state + j, A[j]);
for (j = 0; j < 16; j++) {
_mm_storeu_si128((__m128i *)sc->state + j + 12, B[j]);
_mm_storeu_si128((__m128i *)sc->state + j + 28, C[j]);
}
#undef M
}
/* see shabal_small.h */
void
sse4_mshabal_init(mshabal_context *sc, unsigned out_size)
{
unsigned u;
for (u = 0; u < 176; u++)
sc->state[u] = 0;
memset(sc->buf0, 0, sizeof sc->buf0);
memset(sc->buf1, 0, sizeof sc->buf1);
memset(sc->buf2, 0, sizeof sc->buf2);
memset(sc->buf3, 0, sizeof sc->buf3);
for (u = 0; u < 16; u++) {
sc->buf0[4 * u + 0] = (out_size + u);
sc->buf0[4 * u + 1] = (out_size + u) >> 8;
sc->buf1[4 * u + 0] = (out_size + u);
sc->buf1[4 * u + 1] = (out_size + u) >> 8;
sc->buf2[4 * u + 0] = (out_size + u);
sc->buf2[4 * u + 1] = (out_size + u) >> 8;
sc->buf3[4 * u + 0] = (out_size + u);
sc->buf3[4 * u + 1] = (out_size + u) >> 8;
}
sc->Whigh = sc->Wlow = C32(0xFFFFFFFF);
sse4_mshabal_compress(sc, sc->buf0, sc->buf1, sc->buf2, sc->buf3, 1);
for (u = 0; u < 16; u++) {
sc->buf0[4 * u + 0] = (out_size + u + 16);
sc->buf0[4 * u + 1] = (out_size + u + 16) >> 8;
sc->buf1[4 * u + 0] = (out_size + u + 16);
sc->buf1[4 * u + 1] = (out_size + u + 16) >> 8;
sc->buf2[4 * u + 0] = (out_size + u + 16);
sc->buf2[4 * u + 1] = (out_size + u + 16) >> 8;
sc->buf3[4 * u + 0] = (out_size + u + 16);
sc->buf3[4 * u + 1] = (out_size + u + 16) >> 8;
}
sse4_mshabal_compress(sc, sc->buf0, sc->buf1, sc->buf2, sc->buf3, 1);
sc->ptr = 0;
sc->out_size = out_size;
}
/* see shabal_small.h */
void
sse4_mshabal(mshabal_context *sc, const void *data0, const void *data1,
const void *data2, const void *data3, size_t len)
{
size_t ptr, num;
if (data0 == NULL) {
if (data1 == NULL) {
if (data2 == NULL) {
if (data3 == NULL) {
return;
}
else {
data0 = data3;
}
}
else {
data0 = data2;
}
}
else {
data0 = data1;
}
}
if (data1 == NULL)
data1 = data0;
if (data2 == NULL)
data2 = data0;
if (data3 == NULL)
data3 = data0;
ptr = sc->ptr;
if (ptr != 0) {
size_t clen;
clen = (sizeof sc->buf0 - ptr);
if (clen > len) {
memcpy(sc->buf0 + ptr, data0, len);
memcpy(sc->buf1 + ptr, data1, len);
memcpy(sc->buf2 + ptr, data2, len);
memcpy(sc->buf3 + ptr, data3, len);
sc->ptr = ptr + len;
return;
}
else {
memcpy(sc->buf0 + ptr, data0, clen);
memcpy(sc->buf1 + ptr, data1, clen);
memcpy(sc->buf2 + ptr, data2, clen);
memcpy(sc->buf3 + ptr, data3, clen);
sse4_mshabal_compress(sc,
sc->buf0, sc->buf1, sc->buf2, sc->buf3, 1);
data0 = (const unsigned char *)data0 + clen;
data1 = (const unsigned char *)data1 + clen;
data2 = (const unsigned char *)data2 + clen;
data3 = (const unsigned char *)data3 + clen;
len -= clen;
}
}
num = len >> 6;
if (num != 0) {
sse4_mshabal_compress(sc, data0, data1, data2, data3, num);
data0 = (const unsigned char *)data0 + (num << 6);
data1 = (const unsigned char *)data1 + (num << 6);
data2 = (const unsigned char *)data2 + (num << 6);
data3 = (const unsigned char *)data3 + (num << 6);
}
len &= (size_t)63;
memcpy(sc->buf0, data0, len);
memcpy(sc->buf1, data1, len);
memcpy(sc->buf2, data2, len);
memcpy(sc->buf3, data3, len);
sc->ptr = len;
}
/* see shabal_small.h */
void
sse4_mshabal_close(mshabal_context *sc,
unsigned ub0, unsigned ub1, unsigned ub2, unsigned ub3, unsigned n,
void *dst0, void *dst1, void *dst2, void *dst3)
{
size_t ptr, off;
unsigned z, out_size_w32;
z = 0x80 >> n;
ptr = sc->ptr;
sc->buf0[ptr] = (ub0 & -z) | z;
sc->buf1[ptr] = (ub1 & -z) | z;
sc->buf2[ptr] = (ub2 & -z) | z;
sc->buf3[ptr] = (ub3 & -z) | z;
ptr++;
memset(sc->buf0 + ptr, 0, (sizeof sc->buf0) - ptr);
memset(sc->buf1 + ptr, 0, (sizeof sc->buf1) - ptr);
memset(sc->buf2 + ptr, 0, (sizeof sc->buf2) - ptr);
memset(sc->buf3 + ptr, 0, (sizeof sc->buf3) - ptr);
for (z = 0; z < 4; z++) {
sse4_mshabal_compress(sc, sc->buf0, sc->buf1, sc->buf2, sc->buf3, 1);
if (sc->Wlow-- == 0)
sc->Whigh--;
}
out_size_w32 = sc->out_size >> 5;
off = 4 * (28 + (16 - out_size_w32));
if (dst0 != NULL) {
u32 *out;
out = dst0;
for (z = 0; z < out_size_w32; z++)
out[z] = sc->state[off + (z << 2) + 0];
}
if (dst1 != NULL) {
u32 *out;
out = dst1;
for (z = 0; z < out_size_w32; z++)
out[z] = sc->state[off + (z << 2) + 1];
}
if (dst2 != NULL) {
u32 *out;
out = dst2;
for (z = 0; z < out_size_w32; z++)
out[z] = sc->state[off + (z << 2) + 2];
}
if (dst3 != NULL) {
u32 *out;
out = dst3;
for (z = 0; z < out_size_w32; z++)
out[z] = sc->state[off + (z << 2) + 3];
}
}
#ifdef __cplusplus
extern "C" {
#endif