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373 lines
11 KiB
373 lines
11 KiB
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/*
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* Copyright 2009 Colin Percival, 2011 ArtForz, 2011-2014 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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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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static const uint32_t keypad[12] = {
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0x80000000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x00000280
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};
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static const uint32_t innerpad[11] = {
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0x80000000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x000004a0
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};
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static const uint32_t outerpad[8] = {
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0x80000000, 0, 0, 0, 0, 0, 0, 0x00000300
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};
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static const uint32_t finalblk[16] = {
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0x00000001, 0x80000000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x00000620
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};
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static const uint32_t sha256_h[8] = {
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0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
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0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
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};
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static const uint32_t sha256_k[64] = {
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0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
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0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
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0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
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0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
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0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
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0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
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0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
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0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
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0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
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0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
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0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
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0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
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0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
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0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
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0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
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0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
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};
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static inline void scrypt_sha256_init(uint32_t *state)
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{
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memcpy(state, sha256_h, 32);
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}
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/* Elementary functions used by SHA256 */
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#define Ch(x, y, z) ((x & (y ^ z)) ^ z)
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#define Maj(x, y, z) ((x & (y | z)) | (y & z))
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#define ROTR(x, n) ((x >> n) | (x << (32 - n)))
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#define S0(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22))
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#define S1(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25))
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#define s0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ (x >> 3))
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#define s1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ (x >> 10))
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/* SHA256 round function */
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#define RND(a, b, c, d, e, f, g, h, k) \
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do { \
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t0 = h + S1(e) + Ch(e, f, g) + k; \
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t1 = S0(a) + Maj(a, b, c); \
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d += t0; \
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h = t0 + t1; \
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} while (0)
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/* Adjusted round function for rotating state */
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#define RNDr(S, W, i) \
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RND(S[(64 - i) % 8], S[(65 - i) % 8], \
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S[(66 - i) % 8], S[(67 - i) % 8], \
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S[(68 - i) % 8], S[(69 - i) % 8], \
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S[(70 - i) % 8], S[(71 - i) % 8], \
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W[i] + sha256_k[i])
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#define swab32(x) ((((x) << 24) & 0xff000000u) | (((x) << 8) & 0x00ff0000u) | (((x) >> 8) & 0x0000ff00u) | (((x) >> 24) & 0x000000ffu))
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static inline void scrypt_sha256_transform(uint32_t *state, const uint32_t *block, int swap)
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{
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uint32_t W[64];
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uint32_t S[8];
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uint32_t t0, t1;
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int i;
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/* 1. Prepare message schedule W. */
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if (swap) {
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for (i = 0; i < 16; i++)
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W[i] = swab32(block[i]);
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} else
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memcpy(W, block, 64);
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for (i = 16; i < 64; i += 2) {
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W[i] = s1(W[i - 2]) + W[i - 7] + s0(W[i - 15]) + W[i - 16];
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W[i+1] = s1(W[i - 1]) + W[i - 6] + s0(W[i - 14]) + W[i - 15];
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}
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/* 2. Initialize working variables. */
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memcpy(S, state, 32);
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/* 3. Mix. */
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RNDr(S, W, 0);
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RNDr(S, W, 1);
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RNDr(S, W, 2);
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RNDr(S, W, 3);
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RNDr(S, W, 4);
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RNDr(S, W, 5);
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RNDr(S, W, 6);
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RNDr(S, W, 7);
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RNDr(S, W, 8);
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RNDr(S, W, 9);
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RNDr(S, W, 10);
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RNDr(S, W, 11);
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RNDr(S, W, 12);
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RNDr(S, W, 13);
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RNDr(S, W, 14);
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RNDr(S, W, 15);
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RNDr(S, W, 16);
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RNDr(S, W, 17);
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RNDr(S, W, 18);
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RNDr(S, W, 19);
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RNDr(S, W, 20);
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RNDr(S, W, 21);
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RNDr(S, W, 22);
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RNDr(S, W, 23);
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RNDr(S, W, 24);
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RNDr(S, W, 25);
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RNDr(S, W, 26);
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RNDr(S, W, 27);
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RNDr(S, W, 28);
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RNDr(S, W, 29);
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RNDr(S, W, 30);
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RNDr(S, W, 31);
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RNDr(S, W, 32);
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RNDr(S, W, 33);
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RNDr(S, W, 34);
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RNDr(S, W, 35);
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RNDr(S, W, 36);
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RNDr(S, W, 37);
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RNDr(S, W, 38);
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RNDr(S, W, 39);
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RNDr(S, W, 40);
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RNDr(S, W, 41);
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RNDr(S, W, 42);
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RNDr(S, W, 43);
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RNDr(S, W, 44);
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RNDr(S, W, 45);
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RNDr(S, W, 46);
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RNDr(S, W, 47);
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RNDr(S, W, 48);
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RNDr(S, W, 49);
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RNDr(S, W, 50);
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RNDr(S, W, 51);
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RNDr(S, W, 52);
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RNDr(S, W, 53);
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RNDr(S, W, 54);
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RNDr(S, W, 55);
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RNDr(S, W, 56);
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RNDr(S, W, 57);
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RNDr(S, W, 58);
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RNDr(S, W, 59);
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RNDr(S, W, 60);
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RNDr(S, W, 61);
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RNDr(S, W, 62);
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RNDr(S, W, 63);
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/* 4. Mix local working variables into global state */
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for (i = 0; i < 8; i++)
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state[i] += S[i];
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}
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static inline void HMAC_SHA256_80_init(const uint32_t *key,uint32_t *tstate, uint32_t *ostate)
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{
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uint32_t ihash[8];
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uint32_t pad[16];
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int i;
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/* tstate is assumed to contain the midstate of key */
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memcpy(pad, key + 16, 16);
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memcpy(pad + 4, keypad, 48);
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scrypt_sha256_transform(tstate, pad, 0);
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memcpy(ihash, tstate, 32);
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scrypt_sha256_init(ostate);
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for (i = 0; i < 8; i++)
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pad[i] = ihash[i] ^ 0x5c5c5c5c;
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for (; i < 16; i++)
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pad[i] = 0x5c5c5c5c;
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scrypt_sha256_transform(ostate, pad, 0);
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scrypt_sha256_init(tstate);
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for (i = 0; i < 8; i++)
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pad[i] = ihash[i] ^ 0x36363636;
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for (; i < 16; i++)
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pad[i] = 0x36363636;
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scrypt_sha256_transform(tstate, pad, 0);
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}
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static inline void PBKDF2_SHA256_80_128(const uint32_t *tstate,const uint32_t *ostate, const uint32_t *salt, uint32_t *output)
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{
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uint32_t istate[8], ostate2[8],ibuf[16], obuf[16]; int i, j;
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memcpy(istate, tstate, 32);
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scrypt_sha256_transform(istate, salt, 0);
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memcpy(ibuf, salt + 16, 16);
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memcpy(ibuf + 5, innerpad, 44);
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memcpy(obuf + 8, outerpad, 32);
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for (i = 0; i < 4; i++)
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{
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memcpy(obuf, istate, 32);
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ibuf[4] = i + 1;
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scrypt_sha256_transform(obuf, ibuf, 0);
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memcpy(ostate2, ostate, 32);
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scrypt_sha256_transform(ostate2, obuf, 0);
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for (j = 0; j < 8; j++)
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output[8 * i + j] = swab32(ostate2[j]);
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}
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}
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static inline void PBKDF2_SHA256_128_32(uint32_t *tstate, uint32_t *ostate,const uint32_t *salt, uint32_t *output)
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{
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uint32_t buf[16]; int i;
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scrypt_sha256_transform(tstate, salt, 1);
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scrypt_sha256_transform(tstate, salt + 16, 1);
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scrypt_sha256_transform(tstate, finalblk, 0);
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memcpy(buf, tstate, 32);
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memcpy(buf + 8, outerpad, 32);
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scrypt_sha256_transform(ostate, buf, 0);
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for (i = 0; i < 8; i++)
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output[i] = swab32(ostate[i]);
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}
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static inline void xor_salsa8(uint32_t B[16], const uint32_t Bx[16])
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{
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uint32_t x00,x01,x02,x03,x04,x05,x06,x07,x08,x09,x10,x11,x12,x13,x14,x15;
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int i;
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x00 = (B[ 0] ^= Bx[ 0]);
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x01 = (B[ 1] ^= Bx[ 1]);
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x02 = (B[ 2] ^= Bx[ 2]);
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x03 = (B[ 3] ^= Bx[ 3]);
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x04 = (B[ 4] ^= Bx[ 4]);
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x05 = (B[ 5] ^= Bx[ 5]);
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x06 = (B[ 6] ^= Bx[ 6]);
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x07 = (B[ 7] ^= Bx[ 7]);
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x08 = (B[ 8] ^= Bx[ 8]);
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x09 = (B[ 9] ^= Bx[ 9]);
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x10 = (B[10] ^= Bx[10]);
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x11 = (B[11] ^= Bx[11]);
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x12 = (B[12] ^= Bx[12]);
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x13 = (B[13] ^= Bx[13]);
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x14 = (B[14] ^= Bx[14]);
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x15 = (B[15] ^= Bx[15]);
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for (i = 0; i < 8; i += 2) {
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#define R(a, b) (((a) << (b)) | ((a) >> (32 - (b))))
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/* Operate on columns. */
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x04 ^= R(x00+x12, 7); x09 ^= R(x05+x01, 7);
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x14 ^= R(x10+x06, 7); x03 ^= R(x15+x11, 7);
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x08 ^= R(x04+x00, 9); x13 ^= R(x09+x05, 9);
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x02 ^= R(x14+x10, 9); x07 ^= R(x03+x15, 9);
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x12 ^= R(x08+x04,13); x01 ^= R(x13+x09,13);
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x06 ^= R(x02+x14,13); x11 ^= R(x07+x03,13);
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x00 ^= R(x12+x08,18); x05 ^= R(x01+x13,18);
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x10 ^= R(x06+x02,18); x15 ^= R(x11+x07,18);
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/* Operate on rows. */
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x01 ^= R(x00+x03, 7); x06 ^= R(x05+x04, 7);
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x11 ^= R(x10+x09, 7); x12 ^= R(x15+x14, 7);
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x02 ^= R(x01+x00, 9); x07 ^= R(x06+x05, 9);
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x08 ^= R(x11+x10, 9); x13 ^= R(x12+x15, 9);
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x03 ^= R(x02+x01,13); x04 ^= R(x07+x06,13);
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x09 ^= R(x08+x11,13); x14 ^= R(x13+x12,13);
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x00 ^= R(x03+x02,18); x05 ^= R(x04+x07,18);
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x10 ^= R(x09+x08,18); x15 ^= R(x14+x13,18);
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#undef R
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}
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B[ 0] += x00;
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B[ 1] += x01;
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B[ 2] += x02;
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B[ 3] += x03;
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B[ 4] += x04;
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B[ 5] += x05;
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B[ 6] += x06;
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B[ 7] += x07;
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B[ 8] += x08;
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B[ 9] += x09;
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B[10] += x10;
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B[11] += x11;
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B[12] += x12;
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B[13] += x13;
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B[14] += x14;
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B[15] += x15;
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}
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static inline void scrypt_core(uint32_t *X, uint32_t *V, int N)
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{
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uint32_t i, j, k;
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for (i = 0; i < N; i++)
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{
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//printf("core.%d V.%p X.%p\n",i,V,X);
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memcpy(&V[i * 32], X, 128);
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xor_salsa8(&X[0], &X[16]);
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xor_salsa8(&X[16], &X[0]);
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}
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for (i = 0; i < N; i++)
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{
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j = 32 * (X[16] & (N - 1));
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for (k = 0; k < 32; k++)
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X[k] ^= V[j + k];
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xor_salsa8(&X[0], &X[16]);
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xor_salsa8(&X[16], &X[0]);
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}
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}
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void scrypt_1024_1_1_256(const uint32_t *input,uint32_t *output,uint32_t *midstate,uint8_t *scratchpad, int N)
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{
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uint32_t *V,tstate[8],ostate[8],X[32]
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#ifndef WIN32
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__attribute__((aligned(128)))
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#endif
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;
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V = (uint32_t *)(((uintptr_t)(scratchpad) + 63) & ~ (uintptr_t)(63));
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memcpy(tstate, midstate, 32);
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HMAC_SHA256_80_init(input, tstate, ostate);
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PBKDF2_SHA256_80_128(tstate, ostate, input, X);
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scrypt_core(X, V, N);
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PBKDF2_SHA256_128_32(tstate, ostate, X, output);
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}
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void calc_scrypthash(uint32_t *hash,void *data)
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{
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uint8_t *scratchbuf; uint32_t midstate[8];
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memset(midstate,0,sizeof(midstate));
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memset(hash,0,32);
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scrypt_sha256_init(midstate);
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scrypt_sha256_transform(midstate,(void *)data,0);
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scratchbuf = malloc(1024 * 128 + 64);
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scrypt_1024_1_1_256((void *)data,hash,midstate,scratchbuf,1024);
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free(scratchbuf);
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}
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//010000000000000000000000000000000000000000000000000000000000000000000000d9ced4ed1130f7b7faad9be25323ffafa33232a17c3edf6cfd97bee6bafbdd97b9aa8e4ef0ff0f1ecd513f7c
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//010000000000000000000000000000000000000000000000000000000000000000000000d9ced4ed1130f7b7faad9be25323ffafa33232a17c3edf6cfd97bee6bafbdd97b9aa8e4ef0ff0f1ecd513f7c00
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