Mangle scrypt some more
3.62kH/s/core on a 3.6GHz PhenomII compiled with gcc 4.6.1 and CFLAGS="-march=amdfam10 -O3"
This commit is contained in:
Art Forz
parent
383482e0a6
commit
a8a1f3f8d4
1 changed files with 150 additions and 293 deletions
443
scrypt.c
443
scrypt.c
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@ -34,63 +34,24 @@
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#include <stdint.h>
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#include <string.h>
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static inline uint32_t
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be32dec(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[3]) + ((uint32_t)(p[2]) << 8) +
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((uint32_t)(p[1]) << 16) + ((uint32_t)(p[0]) << 24));
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}
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static inline void
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be32enc(void *pp, uint32_t x)
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{
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uint8_t * p = (uint8_t *)pp;
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p[3] = x & 0xff;
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p[2] = (x >> 8) & 0xff;
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p[1] = (x >> 16) & 0xff;
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p[0] = (x >> 24) & 0xff;
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}
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#define byteswap(x) ((((x) << 24) & 0xff000000u) | (((x) << 8) & 0x00ff0000u) | (((x) >> 8) & 0x0000ff00u) | (((x) >> 24) & 0x000000ffu))
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typedef struct SHA256Context {
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uint32_t state[8];
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uint32_t count[2];
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unsigned char buf[64];
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uint32_t buf[16];
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} SHA256_CTX;
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typedef struct HMAC_SHA256Context {
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SHA256_CTX ictx;
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SHA256_CTX octx;
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} HMAC_SHA256_CTX;
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/*
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* Encode a length len/4 vector of (uint32_t) into a length len vector of
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* (unsigned char) in big-endian form. Assumes len is a multiple of 4.
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*/
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static inline void
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be32enc_vect(unsigned char *dst, const uint32_t *src, size_t len)
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be32enc_vect(uint32_t *dst, const uint32_t *src, uint32_t len)
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{
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size_t i;
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uint32_t i;
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for (i = 0; i < len / 4; i++)
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be32enc(dst + i * 4, src[i]);
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}
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/*
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* Decode a big-endian length len vector of (unsigned char) into a length
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* len/4 vector of (uint32_t). Assumes len is a multiple of 4.
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*/
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static inline void
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be32dec_vect(uint32_t *dst, const unsigned char *src, size_t len)
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{
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size_t i;
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for (i = 0; i < len / 4; i++)
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dst[i] = be32dec(src + i * 4);
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for (i = 0; i < len; i++)
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dst[i] = byteswap(src[i]);
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}
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/* Elementary functions used by SHA256 */
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@ -123,7 +84,7 @@ be32dec_vect(uint32_t *dst, const unsigned char *src, size_t len)
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* the 512-bit input block to produce a new state.
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*/
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static void
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SHA256_Transform(uint32_t * state, const unsigned char block[64])
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SHA256_Transform(uint32_t * state, const uint32_t block[16], 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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@ -131,9 +92,15 @@ SHA256_Transform(uint32_t * state, const unsigned char block[64])
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int i;
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/* 1. Prepare message schedule W. */
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be32dec_vect(W, block, 64);
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for (i = 16; i < 64; i++)
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if(swap)
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for (i = 0; i < 16; i++)
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W[i] = byteswap(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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@ -209,111 +176,22 @@ SHA256_Transform(uint32_t * state, const unsigned char block[64])
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state[i] += S[i];
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}
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static unsigned char PAD[64] = {
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0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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/* SHA-256 initialization. Begins a SHA-256 operation. */
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static inline void
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SHA256_Init(SHA256_CTX * ctx)
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SHA256_InitState(uint32_t * state)
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{
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/* Zero bits processed so far */
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ctx->count[0] = ctx->count[1] = 0;
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/* Magic initialization constants */
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ctx->state[0] = 0x6A09E667;
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ctx->state[1] = 0xBB67AE85;
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ctx->state[2] = 0x3C6EF372;
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ctx->state[3] = 0xA54FF53A;
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ctx->state[4] = 0x510E527F;
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ctx->state[5] = 0x9B05688C;
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ctx->state[6] = 0x1F83D9AB;
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ctx->state[7] = 0x5BE0CD19;
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state[0] = 0x6A09E667;
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state[1] = 0xBB67AE85;
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state[2] = 0x3C6EF372;
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state[3] = 0xA54FF53A;
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state[4] = 0x510E527F;
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state[5] = 0x9B05688C;
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state[6] = 0x1F83D9AB;
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state[7] = 0x5BE0CD19;
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}
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/* Add bytes into the hash */
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static inline void
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SHA256_Update(SHA256_CTX * ctx, const void *in, size_t len)
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{
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uint32_t bitlen[2];
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uint32_t r;
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const unsigned char *src = in;
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/* Number of bytes left in the buffer from previous updates */
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r = (ctx->count[1] >> 3) & 0x3f;
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/* Convert the length into a number of bits */
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bitlen[1] = ((uint32_t)len) << 3;
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bitlen[0] = (uint32_t)(len >> 29);
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/* Update number of bits */
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if ((ctx->count[1] += bitlen[1]) < bitlen[1])
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ctx->count[0]++;
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ctx->count[0] += bitlen[0];
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/* Handle the case where we don't need to perform any transforms */
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if (len < 64 - r) {
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memcpy(&ctx->buf[r], src, len);
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return;
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}
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/* Finish the current block */
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memcpy(&ctx->buf[r], src, 64 - r);
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SHA256_Transform(ctx->state, ctx->buf);
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src += 64 - r;
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len -= 64 - r;
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/* Perform complete blocks */
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while (len >= 64) {
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SHA256_Transform(ctx->state, src);
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src += 64;
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len -= 64;
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}
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/* Copy left over data into buffer */
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memcpy(ctx->buf, src, len);
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}
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/* Add padding and terminating bit-count. */
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static inline void
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SHA256_Pad(SHA256_CTX * ctx)
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{
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unsigned char len[8];
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uint32_t r, plen;
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/*
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* Convert length to a vector of bytes -- we do this now rather
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* than later because the length will change after we pad.
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*/
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be32enc_vect(len, ctx->count, 8);
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/* Add 1--64 bytes so that the resulting length is 56 mod 64 */
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r = (ctx->count[1] >> 3) & 0x3f;
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plen = (r < 56) ? (56 - r) : (120 - r);
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SHA256_Update(ctx, PAD, (size_t)plen);
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/* Add the terminating bit-count */
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SHA256_Update(ctx, len, 8);
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}
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/*
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* SHA-256 finalization. Pads the input data, exports the hash value,
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* and clears the context state.
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*/
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static inline void
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SHA256_Final(unsigned char digest[32], SHA256_CTX * ctx)
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{
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/* Add padding */
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SHA256_Pad(ctx);
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/* Write the hash */
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be32enc_vect(digest, ctx->state, 32);
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}
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static const uint32_t passwdpad[12] = {0x00000080, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x80020000};
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static const uint32_t outerpad[8] = {0x80000000, 0, 0, 0, 0, 0, 0, 0x00000300};
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/**
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* PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen):
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@ -321,149 +199,132 @@ SHA256_Final(unsigned char digest[32], SHA256_CTX * ctx)
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* write the output to buf. The value dkLen must be at most 32 * (2^32 - 1).
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*/
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static inline void
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PBKDF2_SHA256_80_128(const uint8_t * passwd, uint8_t * buf)
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PBKDF2_SHA256_80_128(const uint32_t * passwd, uint32_t * buf)
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{
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HMAC_SHA256_CTX PShctx, hctx;
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size_t i;
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uint8_t ivec[4];
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unsigned char ihash[32];
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/* Compute HMAC state after processing P and S. */
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unsigned char pad[64];
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unsigned char khash[32];
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SHA256_CTX PShictx, PShoctx;
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uint32_t tstate[8];
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uint32_t ihash[8];
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uint32_t i;
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uint32_t pad[16];
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static const uint32_t innerpad[11] = {0x00000080, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xa0040000};
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/* If Klen > 64, the key is really SHA256(K). */
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SHA256_Init(&PShctx.ictx);
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SHA256_Update(&PShctx.ictx, passwd, 80);
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SHA256_Final(khash, &PShctx.ictx);
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SHA256_InitState(tstate);
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SHA256_Transform(tstate, passwd, 1);
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memcpy(pad, passwd+16, 16);
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memcpy(pad+4, passwdpad, 48);
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SHA256_Transform(tstate, pad, 1);
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memcpy(ihash, tstate, 32);
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SHA256_Init(&PShctx.ictx);
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memset(pad, 0x36, 64);
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for (i = 0; i < 32; i++)
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pad[i] ^= khash[i];
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SHA256_Update(&PShctx.ictx, pad, 64);
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SHA256_InitState(PShictx.state);
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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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SHA256_Transform(PShictx.state, pad, 0);
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SHA256_Transform(PShictx.state, passwd, 1);
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be32enc_vect(PShictx.buf, passwd+16, 4);
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be32enc_vect(PShictx.buf+5, innerpad, 11);
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SHA256_Init(&PShctx.octx);
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memset(pad, 0x5c, 64);
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for (i = 0; i < 32; i++)
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pad[i] ^= khash[i];
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SHA256_Update(&PShctx.octx, pad, 64);
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SHA256_Update(&PShctx.ictx, passwd, 80);
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SHA256_InitState(PShoctx.state);
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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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SHA256_Transform(PShoctx.state, pad, 0);
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memcpy(PShoctx.buf+8, outerpad, 32);
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/* Iterate through the blocks. */
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for (i = 0; i * 32 < 128; i++) {
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/* Generate INT(i + 1). */
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be32enc(ivec, (uint32_t)(i + 1));
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for (i = 0; i < 4; i++) {
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uint32_t istate[8];
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uint32_t ostate[8];
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memcpy(istate, PShictx.state, 32);
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PShictx.buf[4] = i + 1;
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SHA256_Transform(istate, PShictx.buf, 0);
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memcpy(PShoctx.buf, istate, 32);
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/* Compute U_1 = PRF(P, S || INT(i)). */
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memcpy(&hctx, &PShctx, sizeof(HMAC_SHA256_CTX));
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SHA256_Update(&hctx.ictx, ivec, 4);
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SHA256_Final(ihash, &hctx.ictx);
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/* Feed the inner hash to the outer SHA256 operation. */
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SHA256_Update(&hctx.octx, ihash, 32);
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/* Finish the outer SHA256 operation. */
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SHA256_Final(&buf[i*32], &hctx.octx);
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memcpy(ostate, PShoctx.state, 32);
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SHA256_Transform(ostate, PShoctx.buf, 0);
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be32enc_vect(buf+i*8, ostate, 8);
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}
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}
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static inline void
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PBKDF2_SHA256_80_128_32(const uint8_t * passwd, const uint8_t * salt, uint8_t * buf)
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static inline uint32_t
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PBKDF2_SHA256_80_128_32(const uint32_t * passwd, const uint32_t * salt)
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{
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HMAC_SHA256_CTX PShctx;
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size_t i;
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uint8_t ivec[4];
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unsigned char ihash[32];
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uint32_t tstate[8];
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uint32_t ostate[8];
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uint32_t ihash[8];
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uint32_t i;
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/* Compute HMAC state after processing P and S. */
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unsigned char pad[64];
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unsigned char khash[32];
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uint32_t pad[16];
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static const uint32_t ihash_finalblk[16] = {0x00000001,0x80000000,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0x00000620};
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/* If Klen > 64, the key is really SHA256(K). */
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SHA256_Init(&PShctx.ictx);
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SHA256_Update(&PShctx.ictx, passwd, 80);
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SHA256_Final(khash, &PShctx.ictx);
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SHA256_InitState(tstate);
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SHA256_Transform(tstate, passwd, 1);
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memcpy(pad, passwd+16, 16);
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memcpy(pad+4, passwdpad, 48);
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SHA256_Transform(tstate, pad, 1);
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memcpy(ihash, tstate, 32);
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SHA256_Init(&PShctx.ictx);
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memset(pad, 0x36, 64);
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for (i = 0; i < 32; i++)
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pad[i] ^= khash[i];
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SHA256_Update(&PShctx.ictx, pad, 64);
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SHA256_InitState(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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SHA256_Transform(ostate, pad, 0);
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SHA256_Init(&PShctx.octx);
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memset(pad, 0x5c, 64);
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for (i = 0; i < 32; i++)
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pad[i] ^= khash[i];
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SHA256_Update(&PShctx.octx, pad, 64);
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SHA256_InitState(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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SHA256_Transform(tstate, pad, 0);
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SHA256_Transform(tstate, salt, 1);
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SHA256_Transform(tstate, salt+16, 1);
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SHA256_Transform(tstate, ihash_finalblk, 0);
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memcpy(pad, tstate, 32);
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memcpy(pad+8, outerpad, 32);
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SHA256_Update(&PShctx.ictx, salt, 128);
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/* Generate INT(i + 1). */
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be32enc(ivec, (uint32_t)(1));
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/* Compute U_1 = PRF(P, S || INT(i)). */
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SHA256_Update(&PShctx.ictx, ivec, 4);
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SHA256_Final(ihash, &PShctx.ictx);
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/* Feed the inner hash to the outer SHA256 operation. */
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SHA256_Update(&PShctx.octx, ihash, 32);
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SHA256_Transform(ostate, pad, 0);
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/* Finish the outer SHA256 operation. */
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SHA256_Final(&buf[0], &PShctx.octx);
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return byteswap(ostate[7]);
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}
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static inline void
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blkcpy(void * dest, void * src, size_t len)
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{
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size_t * D = dest;
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size_t * S = src;
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size_t L = len / sizeof(size_t);
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size_t i;
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for (i = 0; i < L; i++)
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D[i] = S[i];
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}
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static inline void
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blkxor(void * dest, void * src, size_t len)
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{
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size_t * D = dest;
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size_t * S = src;
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size_t L = len / sizeof(size_t);
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size_t i;
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for (i = 0; i < L; i++)
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D[i] ^= S[i];
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}
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/**
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* salsa20_8(B):
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* Apply the salsa20/8 core to the provided block.
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*/
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static inline void
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salsa20_8(uint32_t B[16])
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salsa20_8(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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size_t i;
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|
||||
x00 = B[ 0];
|
||||
x01 = B[ 1];
|
||||
x02 = B[ 2];
|
||||
x03 = B[ 3];
|
||||
x04 = B[ 4];
|
||||
x05 = B[ 5];
|
||||
x06 = B[ 6];
|
||||
x07 = B[ 7];
|
||||
x08 = B[ 8];
|
||||
x09 = B[ 9];
|
||||
x10 = B[10];
|
||||
x11 = B[11];
|
||||
x12 = B[12];
|
||||
x13 = B[13];
|
||||
x14 = B[14];
|
||||
x15 = B[15];
|
||||
x00 = (B[ 0] ^= Bx[ 0]);
|
||||
x01 = (B[ 1] ^= Bx[ 1]);
|
||||
x02 = (B[ 2] ^= Bx[ 2]);
|
||||
x03 = (B[ 3] ^= Bx[ 3]);
|
||||
x04 = (B[ 4] ^= Bx[ 4]);
|
||||
x05 = (B[ 5] ^= Bx[ 5]);
|
||||
x06 = (B[ 6] ^= Bx[ 6]);
|
||||
x07 = (B[ 7] ^= Bx[ 7]);
|
||||
x08 = (B[ 8] ^= Bx[ 8]);
|
||||
x09 = (B[ 9] ^= Bx[ 9]);
|
||||
x10 = (B[10] ^= Bx[10]);
|
||||
x11 = (B[11] ^= Bx[11]);
|
||||
x12 = (B[12] ^= Bx[12]);
|
||||
x13 = (B[13] ^= Bx[13]);
|
||||
x14 = (B[14] ^= Bx[14]);
|
||||
x15 = (B[15] ^= Bx[15]);
|
||||
for (i = 0; i < 8; i += 2) {
|
||||
#define R(a,b) (((a) << (b)) | ((a) >> (32 - (b))))
|
||||
/* Operate on columns. */
|
||||
|
|
@ -500,77 +361,73 @@ salsa20_8(uint32_t B[16])
|
|||
/* cpu and memory intensive function to transform a 80 byte buffer into a 32 byte output
|
||||
scratchpad size needs to be at least 63 + (128 * r * p) + (256 * r + 64) + (128 * r * N) bytes
|
||||
*/
|
||||
static void scrypt_1024_1_1_256_sp(const char* input, char* output, char* scratchpad)
|
||||
static uint32_t scrypt_1024_1_1_256_sp(const uint32_t* input, char* scratchpad)
|
||||
{
|
||||
uint32_t * V;
|
||||
uint32_t * X;
|
||||
uint32_t X[32];
|
||||
uint32_t i;
|
||||
uint32_t j;
|
||||
uint32_t k;
|
||||
uint64_t *p1, *p2;
|
||||
|
||||
X = (uint32_t *)(((uintptr_t)(scratchpad) + 63) & ~ (uintptr_t)(63));
|
||||
V = &X[32];
|
||||
p1 = (uint64_t *)X;
|
||||
V = (uint32_t *)(((uintptr_t)(scratchpad) + 63) & ~ (uintptr_t)(63));
|
||||
|
||||
PBKDF2_SHA256_80_128((const uint8_t*)input, (uint8_t *)X);
|
||||
PBKDF2_SHA256_80_128(input, X);
|
||||
|
||||
for (i = 0; i < 1024; i += 2) {
|
||||
blkcpy(&V[i * 32], X, 128);
|
||||
memcpy(&V[i * 32], X, 128);
|
||||
|
||||
blkxor(&X[0], &X[16], 64);
|
||||
salsa20_8(&X[0]);
|
||||
blkxor(&X[16], &X[0], 64);
|
||||
salsa20_8(&X[16]);
|
||||
salsa20_8(&X[0], &X[16]);
|
||||
salsa20_8(&X[16], &X[0]);
|
||||
|
||||
blkcpy(&V[(i + 1) * 32], X, 128);
|
||||
memcpy(&V[(i + 1) * 32], X, 128);
|
||||
|
||||
blkxor(&X[0], &X[16], 64);
|
||||
salsa20_8(&X[0]);
|
||||
blkxor(&X[16], &X[0], 64);
|
||||
salsa20_8(&X[16]);
|
||||
salsa20_8(&X[0], &X[16]);
|
||||
salsa20_8(&X[16], &X[0]);
|
||||
}
|
||||
for (i = 0; i < 1024; i += 2) {
|
||||
j = X[16] & 1023;
|
||||
blkxor(X, &V[j * 32], 128);
|
||||
p2 = (uint64_t *)(&V[j * 32]);
|
||||
for(k = 0; k < 16; k++)
|
||||
p1[k] ^= p2[k];
|
||||
|
||||
blkxor(&X[0], &X[16], 64);
|
||||
salsa20_8(&X[0]);
|
||||
blkxor(&X[16], &X[0], 64);
|
||||
salsa20_8(&X[16]);
|
||||
salsa20_8(&X[0], &X[16]);
|
||||
salsa20_8(&X[16], &X[0]);
|
||||
|
||||
j = X[16] & 1023;
|
||||
blkxor(X, &V[j * 32], 128);
|
||||
p2 = (uint64_t *)(&V[j * 32]);
|
||||
for(k = 0; k < 16; k++)
|
||||
p1[k] ^= p2[k];
|
||||
|
||||
blkxor(&X[0], &X[16], 64);
|
||||
salsa20_8(&X[0]);
|
||||
blkxor(&X[16], &X[0], 64);
|
||||
salsa20_8(&X[16]);
|
||||
salsa20_8(&X[0], &X[16]);
|
||||
salsa20_8(&X[16], &X[0]);
|
||||
}
|
||||
|
||||
PBKDF2_SHA256_80_128_32((const uint8_t*)input, (const uint8_t *)X, (uint8_t*)output);
|
||||
return PBKDF2_SHA256_80_128_32(input, X);
|
||||
}
|
||||
|
||||
int scanhash_scrypt(int thr_id, unsigned char *pdata, unsigned char *scratchbuf,
|
||||
const unsigned char *ptarget,
|
||||
uint32_t max_nonce, unsigned long *hashes_done)
|
||||
{
|
||||
unsigned char data[80];
|
||||
unsigned char tmp_hash[32];
|
||||
uint32_t *nonce = (uint32_t *)(data + 64 + 12);
|
||||
uint32_t data[20];
|
||||
uint32_t tmp_hash7;
|
||||
uint32_t n = 0;
|
||||
uint32_t Htarg = *(uint32_t *)(ptarget + 28);
|
||||
uint32_t Htarg = ((const uint32_t *)ptarget)[7];
|
||||
int i;
|
||||
|
||||
work_restart[thr_id].restart = 0;
|
||||
|
||||
for (i = 0; i < 80/4; i++)
|
||||
((uint32_t *)data)[i] = swab32(((uint32_t *)pdata)[i]);
|
||||
be32enc_vect(data, (const uint32_t *)pdata, 19);
|
||||
|
||||
while(1) {
|
||||
n++;
|
||||
*nonce = n;
|
||||
scrypt_1024_1_1_256_sp(data, tmp_hash, scratchbuf);
|
||||
data[19] = n;
|
||||
tmp_hash7 = scrypt_1024_1_1_256_sp(data, scratchbuf);
|
||||
|
||||
if (*(uint32_t *)(tmp_hash+28) <= Htarg) {
|
||||
*(uint32_t *)(pdata + 64 + 12) = swab32(n);
|
||||
if (tmp_hash7 <= Htarg) {
|
||||
((uint32_t *)pdata)[19] = byteswap(n);
|
||||
*hashes_done = n;
|
||||
return true;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue