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pooler: Ported from tarsnap upstream, fixed aliasing issue cfields: break apart sse2/non-sse2 into separate objects0.8
pooler
11 years ago
committed by
Warren Togami
4 changed files with 184 additions and 22 deletions
@ -0,0 +1,138 @@
@@ -0,0 +1,138 @@
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/*
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* Copyright 2009 Colin Percival, 2011 ArtForz, 2012-2013 pooler |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* This file was originally written by Colin Percival as part of the Tarsnap |
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* online backup system. |
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*/ |
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#ifdef __SSE2__ |
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#include "scrypt.h" |
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#include <stdlib.h> |
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#include <stdint.h> |
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#include <string.h> |
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#include <openssl/sha.h> |
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#include <emmintrin.h> |
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static inline void xor_salsa8_sse2(__m128i B[4], const __m128i Bx[4]) |
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{ |
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__m128i X0, X1, X2, X3; |
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__m128i T; |
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int i; |
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X0 = B[0] = _mm_xor_si128(B[0], Bx[0]); |
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X1 = B[1] = _mm_xor_si128(B[1], Bx[1]); |
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X2 = B[2] = _mm_xor_si128(B[2], Bx[2]); |
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X3 = B[3] = _mm_xor_si128(B[3], Bx[3]); |
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for (i = 0; i < 8; i += 2) { |
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/* Operate on "columns". */ |
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T = _mm_add_epi32(X0, X3); |
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X1 = _mm_xor_si128(X1, _mm_slli_epi32(T, 7)); |
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X1 = _mm_xor_si128(X1, _mm_srli_epi32(T, 25)); |
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T = _mm_add_epi32(X1, X0); |
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X2 = _mm_xor_si128(X2, _mm_slli_epi32(T, 9)); |
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X2 = _mm_xor_si128(X2, _mm_srli_epi32(T, 23)); |
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T = _mm_add_epi32(X2, X1); |
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X3 = _mm_xor_si128(X3, _mm_slli_epi32(T, 13)); |
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X3 = _mm_xor_si128(X3, _mm_srli_epi32(T, 19)); |
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T = _mm_add_epi32(X3, X2); |
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X0 = _mm_xor_si128(X0, _mm_slli_epi32(T, 18)); |
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X0 = _mm_xor_si128(X0, _mm_srli_epi32(T, 14)); |
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/* Rearrange data. */ |
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X1 = _mm_shuffle_epi32(X1, 0x93); |
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X2 = _mm_shuffle_epi32(X2, 0x4E); |
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X3 = _mm_shuffle_epi32(X3, 0x39); |
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/* Operate on "rows". */ |
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T = _mm_add_epi32(X0, X1); |
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X3 = _mm_xor_si128(X3, _mm_slli_epi32(T, 7)); |
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X3 = _mm_xor_si128(X3, _mm_srli_epi32(T, 25)); |
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T = _mm_add_epi32(X3, X0); |
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X2 = _mm_xor_si128(X2, _mm_slli_epi32(T, 9)); |
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X2 = _mm_xor_si128(X2, _mm_srli_epi32(T, 23)); |
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T = _mm_add_epi32(X2, X3); |
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X1 = _mm_xor_si128(X1, _mm_slli_epi32(T, 13)); |
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X1 = _mm_xor_si128(X1, _mm_srli_epi32(T, 19)); |
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T = _mm_add_epi32(X1, X2); |
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X0 = _mm_xor_si128(X0, _mm_slli_epi32(T, 18)); |
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X0 = _mm_xor_si128(X0, _mm_srli_epi32(T, 14)); |
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/* Rearrange data. */ |
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X1 = _mm_shuffle_epi32(X1, 0x39); |
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X2 = _mm_shuffle_epi32(X2, 0x4E); |
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X3 = _mm_shuffle_epi32(X3, 0x93); |
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} |
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B[0] = _mm_add_epi32(B[0], X0); |
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B[1] = _mm_add_epi32(B[1], X1); |
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B[2] = _mm_add_epi32(B[2], X2); |
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B[3] = _mm_add_epi32(B[3], X3); |
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} |
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#endif |
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void scrypt_1024_1_1_256_sp_sse2(const char *input, char *output, char *scratchpad) |
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{ |
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#ifdef __SSE2__ |
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uint8_t B[128]; |
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union { |
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__m128i i128[8]; |
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uint32_t u32[32]; |
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} X; |
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__m128i *V; |
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uint32_t i, j, k; |
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V = (__m128i *)(((uintptr_t)(scratchpad) + 63) & ~ (uintptr_t)(63)); |
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PBKDF2_SHA256((const uint8_t *)input, 80, (const uint8_t *)input, 80, 1, B, 128); |
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for (k = 0; k < 2; k++) { |
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for (i = 0; i < 16; i++) { |
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X.u32[k * 16 + i] = le32dec(&B[(k * 16 + (i * 5 % 16)) * 4]); |
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} |
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} |
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for (i = 0; i < 1024; i++) { |
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for (k = 0; k < 8; k++) |
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V[i * 8 + k] = X.i128[k]; |
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xor_salsa8_sse2(&X.i128[0], &X.i128[4]); |
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xor_salsa8_sse2(&X.i128[4], &X.i128[0]); |
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} |
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for (i = 0; i < 1024; i++) { |
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j = 8 * (X.u32[16] & 1023); |
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for (k = 0; k < 8; k++) |
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X.i128[k] = _mm_xor_si128(X.i128[k], V[j + k]); |
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xor_salsa8_sse2(&X.i128[0], &X.i128[4]); |
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xor_salsa8_sse2(&X.i128[4], &X.i128[0]); |
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} |
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for (k = 0; k < 2; k++) { |
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for (i = 0; i < 16; i++) { |
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le32enc(&B[(k * 16 + (i * 5 % 16)) * 4], X.u32[k * 16 + i]); |
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} |
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} |
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PBKDF2_SHA256((const uint8_t *)input, 80, B, 128, 1, (uint8_t *)output, 32); |
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#endif |
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} |
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@ -1,9 +1,32 @@
@@ -1,9 +1,32 @@
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#ifndef SCRYPT_H |
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#define SCRYPT_H |
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#include <stdlib.h> |
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#include <stdint.h> |
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static const int SCRYPT_SCRATCHPAD_SIZE = 131072 + 63; |
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void scrypt_1024_1_1_256_sp_sse2(const char *input, char *output, char *scratchpad); |
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void scrypt_1024_1_1_256_sp(const char *input, char *output, char *scratchpad); |
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void scrypt_1024_1_1_256(const char *input, char *output); |
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void |
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PBKDF2_SHA256(const uint8_t *passwd, size_t passwdlen, const uint8_t *salt, |
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size_t saltlen, uint64_t c, uint8_t *buf, size_t dkLen); |
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static inline uint32_t le32dec(const void *pp) |
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{ |
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const uint8_t *p = (uint8_t const *)pp; |
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return ((uint32_t)(p[0]) + ((uint32_t)(p[1]) << 8) + |
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((uint32_t)(p[2]) << 16) + ((uint32_t)(p[3]) << 24)); |
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} |
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static inline void le32enc(void *pp, uint32_t x) |
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{ |
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uint8_t *p = (uint8_t *)pp; |
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p[0] = x & 0xff; |
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p[1] = (x >> 8) & 0xff; |
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p[2] = (x >> 16) & 0xff; |
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p[3] = (x >> 24) & 0xff; |
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} |
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#endif |
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