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Externalize the blake2b compression function

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This commit is contained in:
Frank Denis 2015-11-01 02:10:21 +01:00
parent 7f238f4c8b
commit b9b722ce22
1 changed files with 93 additions and 0 deletions
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src/libsodium/crypto_generichash/blake2/sse/blake2b-compress.c Normal file
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#include "blake2-config.h"
#include "blake2.h"
#include "blake2-impl.h"
#define BLAKE2_USE_SSSE3
#ifdef _MSC_VER
#include <intrin.h> /* for _mm_set_epi64x */
#endif
#include <emmintrin.h>
#include <tmmintrin.h>
#if defined(BLAKE2_USE_SSE41)
#include <smmintrin.h>
#endif
#include "blake2b-round.h"
static const uint64_t blake2b_IV[8] =
{
0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL,
0x3c6ef372fe94f82bULL, 0xa54ff53a5f1d36f1ULL,
0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL,
0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL
};
int blake2b_compress( blake2b_state *S, const uint8_t block[BLAKE2B_BLOCKBYTES] )
{
__m128i row1l, row1h;
__m128i row2l, row2h;
__m128i row3l, row3h;
__m128i row4l, row4h;
__m128i b0, b1;
__m128i t0, t1;
const __m128i r16 = _mm_setr_epi8( 2, 3, 4, 5, 6, 7, 0, 1, 10, 11, 12, 13, 14, 15, 8, 9 );
const __m128i r24 = _mm_setr_epi8( 3, 4, 5, 6, 7, 0, 1, 2, 11, 12, 13, 14, 15, 8, 9, 10 );
#if defined(BLAKE2_USE_SSE41)
const __m128i m0 = LOADU( block + 00 );
const __m128i m1 = LOADU( block + 16 );
const __m128i m2 = LOADU( block + 32 );
const __m128i m3 = LOADU( block + 48 );
const __m128i m4 = LOADU( block + 64 );
const __m128i m5 = LOADU( block + 80 );
const __m128i m6 = LOADU( block + 96 );
const __m128i m7 = LOADU( block + 112 );
#else
const uint64_t m0 = ( ( uint64_t * )block )[ 0];
const uint64_t m1 = ( ( uint64_t * )block )[ 1];
const uint64_t m2 = ( ( uint64_t * )block )[ 2];
const uint64_t m3 = ( ( uint64_t * )block )[ 3];
const uint64_t m4 = ( ( uint64_t * )block )[ 4];
const uint64_t m5 = ( ( uint64_t * )block )[ 5];
const uint64_t m6 = ( ( uint64_t * )block )[ 6];
const uint64_t m7 = ( ( uint64_t * )block )[ 7];
const uint64_t m8 = ( ( uint64_t * )block )[ 8];
const uint64_t m9 = ( ( uint64_t * )block )[ 9];
const uint64_t m10 = ( ( uint64_t * )block )[10];
const uint64_t m11 = ( ( uint64_t * )block )[11];
const uint64_t m12 = ( ( uint64_t * )block )[12];
const uint64_t m13 = ( ( uint64_t * )block )[13];
const uint64_t m14 = ( ( uint64_t * )block )[14];
const uint64_t m15 = ( ( uint64_t * )block )[15];
#endif
row1l = LOADU( &S->h[0] );
row1h = LOADU( &S->h[2] );
row2l = LOADU( &S->h[4] );
row2h = LOADU( &S->h[6] );
row3l = LOADU( &blake2b_IV[0] );
row3h = LOADU( &blake2b_IV[2] );
row4l = _mm_xor_si128( LOADU( &blake2b_IV[4] ), LOADU( &S->t[0] ) );
row4h = _mm_xor_si128( LOADU( &blake2b_IV[6] ), LOADU( &S->f[0] ) );
ROUND( 0 );
ROUND( 1 );
ROUND( 2 );
ROUND( 3 );
ROUND( 4 );
ROUND( 5 );
ROUND( 6 );
ROUND( 7 );
ROUND( 8 );
ROUND( 9 );
ROUND( 10 );
ROUND( 11 );
row1l = _mm_xor_si128( row3l, row1l );
row1h = _mm_xor_si128( row3h, row1h );
STOREU( &S->h[0], _mm_xor_si128( LOADU( &S->h[0] ), row1l ) );
STOREU( &S->h[2], _mm_xor_si128( LOADU( &S->h[2] ), row1h ) );
row2l = _mm_xor_si128( row4l, row2l );
row2h = _mm_xor_si128( row4h, row2h );
STOREU( &S->h[4], _mm_xor_si128( LOADU( &S->h[4] ), row2l ) );
STOREU( &S->h[6], _mm_xor_si128( LOADU( &S->h[6] ), row2h ) );
return 0;
}