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blake2bp.c
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#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "blake2.h"
#include "blake2bp.h"
#include "blake2b-common.h"
ALIGN(64) static const uint64_t blake2b_IV[8] = {
UINT64_C(0x6A09E667F3BCC908), UINT64_C(0xBB67AE8584CAA73B),
UINT64_C(0x3C6EF372FE94F82B), UINT64_C(0xA54FF53A5F1D36F1),
UINT64_C(0x510E527FADE682D1), UINT64_C(0x9B05688C2B3E6C1F),
UINT64_C(0x1F83D9ABFB41BD6B), UINT64_C(0x5BE0CD19137E2179),
};
ALIGN(64) static const uint32_t blake2b_sigma[12][16] = {
{ 0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 480},
{448, 320, 128, 256, 288, 480, 416, 192, 32, 384, 0, 64, 352, 224, 160, 96},
{352, 256, 384, 0, 160, 64, 480, 416, 320, 448, 96, 192, 224, 32, 288, 128},
{224, 288, 96, 32, 416, 384, 352, 448, 64, 192, 160, 320, 128, 0, 480, 256},
{288, 0, 160, 224, 64, 128, 320, 480, 448, 32, 352, 384, 192, 256, 96, 416},
{ 64, 384, 192, 320, 0, 352, 256, 96, 128, 416, 224, 160, 480, 448, 32, 288},
{384, 160, 32, 480, 448, 416, 128, 320, 0, 224, 192, 96, 288, 64, 256, 352},
{416, 352, 224, 448, 384, 32, 96, 288, 160, 0, 480, 128, 256, 192, 64, 320},
{192, 480, 448, 288, 352, 96, 0, 256, 384, 64, 416, 224, 32, 128, 320, 160},
{320, 64, 256, 128, 224, 192, 32, 160, 480, 352, 288, 448, 96, 384, 416, 0},
{ 0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 480},
{448, 320, 128, 256, 288, 480, 416, 192, 32, 384, 0, 64, 352, 224, 160, 96},
};
#define BLAKE2B_G1_V1(a, b, c, d, m) do { \
a = ADD(a, m); \
a = ADD(a, b); d = XOR(d, a); d = ROT32(d); \
c = ADD(c, d); b = XOR(b, c); b = ROT24(b); \
} while(0)
#define BLAKE2B_G2_V1(a, b, c, d, m) do { \
a = ADD(a, m); \
a = ADD(a, b); d = XOR(d, a); d = ROT16(d); \
c = ADD(c, d); b = XOR(b, c); b = ROT63(b); \
} while(0)
#define BLAKE2B_DIAG_V1(a, b, c, d) do { \
a = _mm256_permute4x64_epi64(a, _MM_SHUFFLE(2,1,0,3)); \
d = _mm256_permute4x64_epi64(d, _MM_SHUFFLE(1,0,3,2)); \
c = _mm256_permute4x64_epi64(c, _MM_SHUFFLE(0,3,2,1)); \
} while(0)
#define BLAKE2B_UNDIAG_V1(a, b, c, d) do { \
a = _mm256_permute4x64_epi64(a, _MM_SHUFFLE(0,3,2,1)); \
d = _mm256_permute4x64_epi64(d, _MM_SHUFFLE(1,0,3,2)); \
c = _mm256_permute4x64_epi64(c, _MM_SHUFFLE(2,1,0,3)); \
} while(0)
#if defined(PERMUTE_WITH_SHUFFLES)
#include "blake2b-load-avx2.h"
#elif defined(PERMUTE_WITH_GATHER)
#else
#include "blake2b-load-avx2-simple.h"
#endif
#if defined(PERMUTE_WITH_GATHER)
ALIGN(64) static const uint32_t indices[12][16] = {
{ 0, 2, 4, 6, 1, 3, 5, 7, 14, 8, 10, 12, 15, 9, 11, 13},
{14, 4, 9, 13, 10, 8, 15, 6, 5, 1, 0, 11, 3, 12, 2, 7},
{11, 12, 5, 15, 8, 0, 2, 13, 9, 10, 3, 7, 4, 14, 6, 1},
{ 7, 3, 13, 11, 9, 1, 12, 14, 15, 2, 5, 4, 8, 6, 10, 0},
{ 9, 5, 2, 10, 0, 7, 4, 15, 3, 14, 11, 6, 13, 1, 12, 8},
{ 2, 6, 0, 8, 12, 10, 11, 3, 1, 4, 7, 15, 9, 13, 5, 14},
{12, 1, 14, 4, 5, 15, 13, 10, 8, 0, 6, 9, 11, 7, 3, 2},
{13, 7, 12, 3, 11, 14, 1, 9, 2, 5, 15, 8, 10, 0, 4, 6},
{ 6, 14, 11, 0, 15, 9, 3, 8, 10, 12, 13, 1, 5, 2, 7, 4},
{10, 8, 7, 1, 2, 4, 6, 5, 13, 15, 9, 3, 0, 11, 14, 12},
{ 0, 2, 4, 6, 1, 3, 5, 7, 14, 8, 10, 12, 15, 9, 11, 13},
{14, 4, 9, 13, 10, 8, 15, 6, 5, 1, 0, 11, 3, 12, 2, 7},
};
#define BLAKE2B_ROUND_V1(a, b, c, d, r, m) do { \
__m256i b0; \
b0 = _mm256_i32gather_epi64((void *)(m), LOAD128(&indices[r][ 0]), 8); \
BLAKE2B_G1_V1(a, b, c, d, b0); \
b0 = _mm256_i32gather_epi64((void *)(m), LOAD128(&indices[r][ 4]), 8); \
BLAKE2B_G2_V1(a, b, c, d, b0); \
BLAKE2B_DIAG_V1(a, b, c, d); \
b0 = _mm256_i32gather_epi64((void *)(m), LOAD128(&indices[r][ 8]), 8); \
BLAKE2B_G1_V1(a, b, c, d, b0); \
b0 = _mm256_i32gather_epi64((void *)(m), LOAD128(&indices[r][12]), 8); \
BLAKE2B_G2_V1(a, b, c, d, b0); \
BLAKE2B_UNDIAG_V1(a, b, c, d); \
} while(0)
#define BLAKE2B_ROUNDS_V1(a, b, c, d, m) do { \
int i; \
for(i = 0; i < 12; ++i) { \
BLAKE2B_ROUND_V1(a, b, c, d, i, m); \
} \
} while(0)
#else /* !PERMUTE_WITH_GATHER */
#define BLAKE2B_ROUND_V1(a, b, c, d, r, m) do { \
__m256i b0; \
BLAKE2B_LOAD_MSG_ ##r ##_1(b0); \
BLAKE2B_G1_V1(a, b, c, d, b0); \
BLAKE2B_LOAD_MSG_ ##r ##_2(b0); \
BLAKE2B_G2_V1(a, b, c, d, b0); \
BLAKE2B_DIAG_V1(a, b, c, d); \
BLAKE2B_LOAD_MSG_ ##r ##_3(b0); \
BLAKE2B_G1_V1(a, b, c, d, b0); \
BLAKE2B_LOAD_MSG_ ##r ##_4(b0); \
BLAKE2B_G2_V1(a, b, c, d, b0); \
BLAKE2B_UNDIAG_V1(a, b, c, d); \
} while(0)
#define BLAKE2B_ROUNDS_V1(a, b, c, d, m) do { \
BLAKE2B_ROUND_V1(a, b, c, d, 0, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 1, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 2, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 3, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 4, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 5, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 6, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 7, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 8, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 9, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 10, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 11, (m)); \
} while(0)
#endif
#if defined(PERMUTE_WITH_GATHER)
#define DECLARE_MESSAGE_WORDS(m)
#elif defined(PERMUTE_WITH_SHUFFLES)
#define DECLARE_MESSAGE_WORDS(m) \
const __m256i m0 = _mm256_broadcastsi128_si256(LOADU128((m) + 0)); \
const __m256i m1 = _mm256_broadcastsi128_si256(LOADU128((m) + 16)); \
const __m256i m2 = _mm256_broadcastsi128_si256(LOADU128((m) + 32)); \
const __m256i m3 = _mm256_broadcastsi128_si256(LOADU128((m) + 48)); \
const __m256i m4 = _mm256_broadcastsi128_si256(LOADU128((m) + 64)); \
const __m256i m5 = _mm256_broadcastsi128_si256(LOADU128((m) + 80)); \
const __m256i m6 = _mm256_broadcastsi128_si256(LOADU128((m) + 96)); \
const __m256i m7 = _mm256_broadcastsi128_si256(LOADU128((m) + 112)); \
__m256i t0, t1;
#else
#define DECLARE_MESSAGE_WORDS(m) \
const uint64_t m0 = LOADU64((m) + 0); \
const uint64_t m1 = LOADU64((m) + 8); \
const uint64_t m2 = LOADU64((m) + 16); \
const uint64_t m3 = LOADU64((m) + 24); \
const uint64_t m4 = LOADU64((m) + 32); \
const uint64_t m5 = LOADU64((m) + 40); \
const uint64_t m6 = LOADU64((m) + 48); \
const uint64_t m7 = LOADU64((m) + 56); \
const uint64_t m8 = LOADU64((m) + 64); \
const uint64_t m9 = LOADU64((m) + 72); \
const uint64_t m10 = LOADU64((m) + 80); \
const uint64_t m11 = LOADU64((m) + 88); \
const uint64_t m12 = LOADU64((m) + 96); \
const uint64_t m13 = LOADU64((m) + 104); \
const uint64_t m14 = LOADU64((m) + 112); \
const uint64_t m15 = LOADU64((m) + 120);
#endif
#define BLAKE2B_COMPRESS_V1(a, b, m, t0, t1, f0, f1) do { \
DECLARE_MESSAGE_WORDS(m) \
const __m256i iv0 = a; \
const __m256i iv1 = b; \
__m256i c = LOAD(&blake2b_IV[0]); \
__m256i d = XOR( \
LOAD(&blake2b_IV[4]), \
_mm256_set_epi64x(f1, f0, t1, t0) \
); \
BLAKE2B_ROUNDS_V1(a, b, c, d, m); \
a = XOR(a, c); \
b = XOR(b, d); \
a = XOR(a, iv0); \
b = XOR(b, iv1); \
} while(0)
/* Compute root node hash; exactly 2 compressions */
static int blake2b_root(uint8_t * out, const uint8_t in[4 * BLAKE2B_OUTBYTES]) {
const __m256i parameter_block = _mm256_set_epi64x(0, 0x00004001UL, 0, 0x02040040UL);
__m256i a = XOR(LOAD(&blake2b_IV[0]), parameter_block);
__m256i b = LOAD(&blake2b_IV[4]);
BLAKE2B_COMPRESS_V1(a, b, in + 0, 128, 0, 0, 0);
BLAKE2B_COMPRESS_V1(a, b, in + 128, 256, 0, -1, -1);
STOREU(out + 0, a);
STOREU(out + 32, b);
return 0;
}
#if 0
#define BLAKE2B_G_V4(m, r, i, a, b, c, d) do { \
a = ADD(a, LOAD((uint8_t const *)(m) + blake2b_sigma[r][2*i+0])); \
a = ADD(a, b); d = XOR(d, a); d = ROT32(d); \
c = ADD(c, d); b = XOR(b, c); b = ROT24(b); \
a = ADD(a, LOAD((uint8_t const *)(m) + blake2b_sigma[r][2*i+1])); \
a = ADD(a, b); d = XOR(d, a); d = ROT16(d); \
c = ADD(c, d); b = XOR(b, c); b = ROT63(b); \
} while(0)
#define BLAKE2B_ROUND_V4(v, m, r) do { \
BLAKE2B_G_V4(m, r, 0, v[ 0], v[ 4], v[ 8], v[12]); \
BLAKE2B_G_V4(m, r, 1, v[ 1], v[ 5], v[ 9], v[13]); \
BLAKE2B_G_V4(m, r, 2, v[ 2], v[ 6], v[10], v[14]); \
BLAKE2B_G_V4(m, r, 3, v[ 3], v[ 7], v[11], v[15]); \
BLAKE2B_G_V4(m, r, 4, v[ 0], v[ 5], v[10], v[15]); \
BLAKE2B_G_V4(m, r, 5, v[ 1], v[ 6], v[11], v[12]); \
BLAKE2B_G_V4(m, r, 6, v[ 2], v[ 7], v[ 8], v[13]); \
BLAKE2B_G_V4(m, r, 7, v[ 3], v[ 4], v[ 9], v[14]); \
} while(0)
#else
#define BLAKE2B_ROUND_V4(v, m, r) do { \
v[0] = ADD(v[0], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 0 + 0])); \
v[1] = ADD(v[1], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 1 + 0])); \
v[2] = ADD(v[2], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 2 + 0])); \
v[3] = ADD(v[3], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 3 + 0])); \
v[0] = ADD(v[0], v[4]); \
v[1] = ADD(v[1], v[5]); \
v[2] = ADD(v[2], v[6]); \
v[3] = ADD(v[3], v[7]); \
v[12] = XOR(v[12], v[0]); \
v[13] = XOR(v[13], v[1]); \
v[14] = XOR(v[14], v[2]); \
v[15] = XOR(v[15], v[3]); \
v[12] = ROT32(v[12]); \
v[13] = ROT32(v[13]); \
v[14] = ROT32(v[14]); \
v[15] = ROT32(v[15]); \
v[8] = ADD(v[8], v[12]); \
v[9] = ADD(v[9], v[13]); \
v[10] = ADD(v[10], v[14]); \
v[11] = ADD(v[11], v[15]); \
v[4] = XOR(v[4], v[8]); \
v[5] = XOR(v[5], v[9]); \
v[6] = XOR(v[6], v[10]); \
v[7] = XOR(v[7], v[11]); \
v[4] = ROT24(v[4]); \
v[5] = ROT24(v[5]); \
v[6] = ROT24(v[6]); \
v[7] = ROT24(v[7]); \
v[0] = ADD(v[0], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 0 + 1])); \
v[1] = ADD(v[1], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 1 + 1])); \
v[2] = ADD(v[2], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 2 + 1])); \
v[3] = ADD(v[3], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 3 + 1])); \
v[0] = ADD(v[0], v[4]); \
v[1] = ADD(v[1], v[5]); \
v[2] = ADD(v[2], v[6]); \
v[3] = ADD(v[3], v[7]); \
v[12] = XOR(v[12], v[0]); \
v[13] = XOR(v[13], v[1]); \
v[14] = XOR(v[14], v[2]); \
v[15] = XOR(v[15], v[3]); \
v[12] = ROT16(v[12]); \
v[13] = ROT16(v[13]); \
v[14] = ROT16(v[14]); \
v[15] = ROT16(v[15]); \
v[8] = ADD(v[8], v[12]); \
v[9] = ADD(v[9], v[13]); \
v[10] = ADD(v[10], v[14]); \
v[11] = ADD(v[11], v[15]); \
v[4] = XOR(v[4], v[8]); \
v[5] = XOR(v[5], v[9]); \
v[6] = XOR(v[6], v[10]); \
v[7] = XOR(v[7], v[11]); \
v[4] = ROT63(v[4]); \
v[5] = ROT63(v[5]); \
v[6] = ROT63(v[6]); \
v[7] = ROT63(v[7]); \
\
v[0] = ADD(v[0], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 4 + 0])); \
v[1] = ADD(v[1], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 5 + 0])); \
v[2] = ADD(v[2], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 6 + 0])); \
v[3] = ADD(v[3], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 7 + 0])); \
v[0] = ADD(v[0], v[5]); \
v[1] = ADD(v[1], v[6]); \
v[2] = ADD(v[2], v[7]); \
v[3] = ADD(v[3], v[4]); \
v[15] = XOR(v[15], v[0]); \
v[12] = XOR(v[12], v[1]); \
v[13] = XOR(v[13], v[2]); \
v[14] = XOR(v[14], v[3]); \
v[15] = ROT32(v[15]); \
v[12] = ROT32(v[12]); \
v[13] = ROT32(v[13]); \
v[14] = ROT32(v[14]); \
v[10] = ADD(v[10], v[15]); \
v[11] = ADD(v[11], v[12]); \
v[8] = ADD(v[8], v[13]); \
v[9] = ADD(v[9], v[14]); \
v[5] = XOR(v[5], v[10]); \
v[6] = XOR(v[6], v[11]); \
v[7] = XOR(v[7], v[8]); \
v[4] = XOR(v[4], v[9]); \
v[5] = ROT24(v[5]); \
v[6] = ROT24(v[6]); \
v[7] = ROT24(v[7]); \
v[4] = ROT24(v[4]); \
v[0] = ADD(v[0], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 4 + 1])); \
v[1] = ADD(v[1], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 5 + 1])); \
v[2] = ADD(v[2], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 6 + 1])); \
v[3] = ADD(v[3], LOAD((uint8_t const *)(m) + blake2b_sigma[r][2 * 7 + 1])); \
v[0] = ADD(v[0], v[5]); \
v[1] = ADD(v[1], v[6]); \
v[2] = ADD(v[2], v[7]); \
v[3] = ADD(v[3], v[4]); \
v[15] = XOR(v[15], v[0]); \
v[12] = XOR(v[12], v[1]); \
v[13] = XOR(v[13], v[2]); \
v[14] = XOR(v[14], v[3]); \
v[15] = ROT16(v[15]); \
v[12] = ROT16(v[12]); \
v[13] = ROT16(v[13]); \
v[14] = ROT16(v[14]); \
v[10] = ADD(v[10], v[15]); \
v[11] = ADD(v[11], v[12]); \
v[8] = ADD(v[8], v[13]); \
v[9] = ADD(v[9], v[14]); \
v[5] = XOR(v[5], v[10]); \
v[6] = XOR(v[6], v[11]); \
v[7] = XOR(v[7], v[8]); \
v[4] = XOR(v[4], v[9]); \
v[5] = ROT63(v[5]); \
v[6] = ROT63(v[6]); \
v[7] = ROT63(v[7]); \
v[4] = ROT63(v[4]); \
} while (0)
#endif
#if defined(PERMUTE_WITH_GATHER)
#define BLAKE2B_LOADMSG_V4(w, m) do { \
int i; \
for(i = 0; i < 16; ++i) { \
w[i] = _mm256_i32gather_epi64( \
(const void *)((m) + i * sizeof(uint64_t)), \
_mm_set_epi32(48, 32, 16, 0), \
sizeof(uint64_t) \
); \
} \
} while(0)
#else
#define BLAKE2B_PACK_MSG_V4(w, m) do { \
__m256i t0, t1, t2, t3; \
t0 = _mm256_unpacklo_epi64(m[ 0], m[ 4]); \
t1 = _mm256_unpackhi_epi64(m[ 0], m[ 4]); \
t2 = _mm256_unpacklo_epi64(m[ 8], m[12]); \
t3 = _mm256_unpackhi_epi64(m[ 8], m[12]); \
w[ 0] = _mm256_permute2x128_si256(t0, t2, 0x20); \
w[ 2] = _mm256_permute2x128_si256(t0, t2, 0x31); \
w[ 1] = _mm256_permute2x128_si256(t1, t3, 0x20); \
w[ 3] = _mm256_permute2x128_si256(t1, t3, 0x31); \
t0 = _mm256_unpacklo_epi64(m[ 1], m[ 5]); \
t1 = _mm256_unpackhi_epi64(m[ 1], m[ 5]); \
t2 = _mm256_unpacklo_epi64(m[ 9], m[13]); \
t3 = _mm256_unpackhi_epi64(m[ 9], m[13]); \
w[ 4] = _mm256_permute2x128_si256(t0, t2, 0x20); \
w[ 6] = _mm256_permute2x128_si256(t0, t2, 0x31); \
w[ 5] = _mm256_permute2x128_si256(t1, t3, 0x20); \
w[ 7] = _mm256_permute2x128_si256(t1, t3, 0x31); \
t0 = _mm256_unpacklo_epi64(m[ 2], m[ 6]); \
t1 = _mm256_unpackhi_epi64(m[ 2], m[ 6]); \
t2 = _mm256_unpacklo_epi64(m[10], m[14]); \
t3 = _mm256_unpackhi_epi64(m[10], m[14]); \
w[ 8] = _mm256_permute2x128_si256(t0, t2, 0x20); \
w[10] = _mm256_permute2x128_si256(t0, t2, 0x31); \
w[ 9] = _mm256_permute2x128_si256(t1, t3, 0x20); \
w[11] = _mm256_permute2x128_si256(t1, t3, 0x31); \
t0 = _mm256_unpacklo_epi64(m[ 3], m[ 7]); \
t1 = _mm256_unpackhi_epi64(m[ 3], m[ 7]); \
t2 = _mm256_unpacklo_epi64(m[11], m[15]); \
t3 = _mm256_unpackhi_epi64(m[11], m[15]); \
w[12] = _mm256_permute2x128_si256(t0, t2, 0x20); \
w[14] = _mm256_permute2x128_si256(t0, t2, 0x31); \
w[13] = _mm256_permute2x128_si256(t1, t3, 0x20); \
w[15] = _mm256_permute2x128_si256(t1, t3, 0x31); \
} while(0)
#define BLAKE2B_LOADMSG_V4(w, m) do { \
__m256i t[16]; \
int i; \
for(i = 0; i < 16; ++i) { \
t[i] = LOADU((m) + i * 32); \
} \
BLAKE2B_PACK_MSG_V4(w, t); \
} while(0)
#endif
#define BLAKE2B_UNPACK_STATE_V4(u, v) do { \
__m256i t0, t1, t2, t3; \
t0 = _mm256_unpacklo_epi64(v[0], v[1]); \
t1 = _mm256_unpackhi_epi64(v[0], v[1]); \
t2 = _mm256_unpacklo_epi64(v[2], v[3]); \
t3 = _mm256_unpackhi_epi64(v[2], v[3]); \
u[0] = _mm256_permute2x128_si256(t0, t2, 0x20); \
u[2] = _mm256_permute2x128_si256(t1, t3, 0x20); \
u[4] = _mm256_permute2x128_si256(t0, t2, 0x31); \
u[6] = _mm256_permute2x128_si256(t1, t3, 0x31); \
t0 = _mm256_unpacklo_epi64(v[4], v[5]); \
t1 = _mm256_unpackhi_epi64(v[4], v[5]); \
t2 = _mm256_unpacklo_epi64(v[6], v[7]); \
t3 = _mm256_unpackhi_epi64(v[6], v[7]); \
u[1] = _mm256_permute2x128_si256(t0, t2, 0x20); \
u[3] = _mm256_permute2x128_si256(t1, t3, 0x20); \
u[5] = _mm256_permute2x128_si256(t0, t2, 0x31); \
u[7] = _mm256_permute2x128_si256(t1, t3, 0x31); \
} while(0)
#define BLAKE2B_COMPRESS_V4(v, m, counter, flag) do { \
const __m256i flag_mask = _mm256_set_epi64x(-1, 0, 0, 0); \
__m256i iv[8], w[16]; \
int i, r; \
for(i = 0; i < 8; ++i) { \
iv[i] = v[i]; \
} \
v[ 8] = _mm256_set1_epi64x(blake2b_IV[0]); \
v[ 9] = _mm256_set1_epi64x(blake2b_IV[1]); \
v[10] = _mm256_set1_epi64x(blake2b_IV[2]); \
v[11] = _mm256_set1_epi64x(blake2b_IV[3]); \
v[12] = XOR(_mm256_set1_epi64x(blake2b_IV[4]), counter); \
v[13] = _mm256_set1_epi64x(blake2b_IV[5]); \
v[14] = XOR(_mm256_set1_epi64x(blake2b_IV[6]), flag); \
v[15] = XOR(_mm256_set1_epi64x(blake2b_IV[7]), AND(flag, flag_mask)); \
BLAKE2B_LOADMSG_V4(w, m); \
for(r = 0; r < 12; ++r) { \
BLAKE2B_ROUND_V4(v, w, r); \
} \
for(i = 0; i < 8; ++i) { \
v[i] = XOR(XOR(v[i], v[i+8]), iv[i]); \
} \
} while(0)
int blake2bp(uint8_t * out, const uint8_t * in, size_t inlen) {
ALIGN(64) uint8_t buffer[4 * BLAKE2B_BLOCKBYTES];
__m256i v[16], s[8];
union {
__m256i v;
uint64_t w[4];
} counter;
int i, lane;
for(i = 0; i < 8; ++i) {
v[i] = _mm256_set1_epi64x(blake2b_IV[i]);
}
v[0] = XOR(v[0], _mm256_set1_epi64x(0x02040040UL));
v[1] = XOR(v[1], _mm256_set_epi64x(3, 2, 1, 0));
v[2] = XOR(v[2], _mm256_set1_epi64x(0x00004000UL));
counter.v = _mm256_setzero_si256();
do {
size_t block_size = 4 * BLAKE2B_BLOCKBYTES;
const uint8_t * ptr = in;
__m256i x0, x1, x2, x3, x4, f0;
const __m256i c0 = _mm256_set_epi64x(384, 256, 128, 0);
const __m256i c1 = _mm256_set_epi64x(512+384+1, 512+256+1, 512+128+1, 512+1);
const __m256i c2 = _mm256_setzero_si256();
const __m256i c3 = _mm256_set1_epi64x(128);
if(inlen < block_size) {
memcpy(buffer, in, inlen);
memset(buffer + inlen, 0, 4 * BLAKE2B_BLOCKBYTES - inlen);
block_size = inlen;
ptr = buffer;
}
x0 = _mm256_set1_epi64x(inlen);
x1 = _mm256_cmpgt_epi64(x0, c0);
x2 = _mm256_blendv_epi8(c2, _mm256_sub_epi64(x0, c0), x1);
x3 = _mm256_cmpgt_epi64(x2, c3);
x4 = _mm256_blendv_epi8(x2, c3, x3);
f0 = _mm256_cmpgt_epi64(c1, x0);
counter.v = _mm256_add_epi64(counter.v, x4);
BLAKE2B_COMPRESS_V4(v, ptr, counter.v, f0);
in += block_size;
inlen -= block_size;
} while(inlen >= 4 * BLAKE2B_BLOCKBYTES);
BLAKE2B_UNPACK_STATE_V4(s, v);
for(lane = 0; lane < 4; ++lane) {
size_t block_size = BLAKE2B_BLOCKBYTES;
const uint8_t * ptr = in;
if(!inlen) break;
if(inlen < block_size) {
memcpy(buffer, in, inlen);
memset(buffer + inlen, 0, BLAKE2B_BLOCKBYTES - inlen);
block_size = inlen;
ptr = buffer;
}
counter.w[lane] += block_size;
BLAKE2B_COMPRESS_V1(s[lane*2+0], s[lane*2+1], ptr, counter.w[lane], 0, -1, -(lane == 3));
in += block_size;
inlen -= block_size;
}
return blake2b_root(out, (void *)s);
}
#if defined(SUPERCOP)
int crypto_hash(unsigned char *out, const unsigned char *in, unsigned long long inlen) {
return blake2bp(out, in, (size_t)inlen);
}
#endif
#if defined(BLAKE2BP_SELFTEST)
#include "blake2-kat.h"
#include <stdio.h>
int main(void) {
uint8_t buf[BLAKE2_KAT_LENGTH];
unsigned long i;
for( i = 0; i < BLAKE2_KAT_LENGTH; ++i ) {
buf[i] = i;
}
for( i = 0; i < BLAKE2_KAT_LENGTH; ++i ) {
uint8_t hash[BLAKE2B_OUTBYTES];
blake2bp( hash, buf, i );
if( 0 != memcmp( hash, blake2bp_kat[i], BLAKE2B_OUTBYTES ) ) {
printf( "error at %lu", i );
return -1;
}
}
puts( "ok" );
return 0;
}
#endif