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480 lines
14 KiB
480 lines
14 KiB
// |
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// =============== KECCAK part on nVidia GPU ====================== |
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// |
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// The keccak512 (SHA-3) is used in the PBKDF2 for scrypt-jane coins |
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// in place of the SHA2 based PBKDF2 used in scrypt coins. |
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// |
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// NOTE: compile this .cu module for compute_20,sm_20 with --maxrregcount=64 |
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// |
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#include <map> |
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#include "miner.h" |
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#include "cuda_helper.h" |
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#include "keccak.h" |
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#include "salsa_kernel.h" |
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// define some error checking macros |
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#undef checkCudaErrors |
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#if WIN32 |
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#define DELIMITER '/' |
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#else |
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#define DELIMITER '/' |
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#endif |
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#define __FILENAME__ ( strrchr(__FILE__, DELIMITER) != NULL ? strrchr(__FILE__, DELIMITER)+1 : __FILE__ ) |
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#define checkCudaErrors(x) \ |
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{ \ |
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cudaGetLastError(); \ |
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x; \ |
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cudaError_t err = cudaGetLastError(); \ |
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if (err != cudaSuccess) \ |
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applog(LOG_ERR, "GPU #%d: cudaError %d (%s) calling '%s' (%s line %d)\n", device_map[thr_id], err, cudaGetErrorString(err), #x, __FILENAME__, __LINE__); \ |
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} |
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// from salsa_kernel.cu |
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extern std::map<int, uint32_t *> context_idata[2]; |
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extern std::map<int, uint32_t *> context_odata[2]; |
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extern std::map<int, cudaStream_t> context_streams[2]; |
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extern std::map<int, uint32_t *> context_hash[2]; |
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#ifndef ROTL64 |
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#define ROTL64(a,b) (((a) << (b)) | ((a) >> (64 - b))) |
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#endif |
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// CB |
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#define U32TO64_LE(p) \ |
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(((uint64_t)(*p)) | (((uint64_t)(*(p + 1))) << 32)) |
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#define U64TO32_LE(p, v) \ |
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*p = (uint32_t)((v)); *(p+1) = (uint32_t)((v) >> 32); |
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static __device__ void mycpy64(uint32_t *d, const uint32_t *s) { |
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#pragma unroll 16 |
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for (int k=0; k < 16; ++k) d[k] = s[k]; |
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} |
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static __device__ void mycpy56(uint32_t *d, const uint32_t *s) { |
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#pragma unroll 14 |
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for (int k=0; k < 14; ++k) d[k] = s[k]; |
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} |
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static __device__ void mycpy32(uint32_t *d, const uint32_t *s) { |
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#pragma unroll 8 |
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for (int k=0; k < 8; ++k) d[k] = s[k]; |
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} |
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static __device__ void mycpy8(uint32_t *d, const uint32_t *s) { |
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#pragma unroll 2 |
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for (int k=0; k < 2; ++k) d[k] = s[k]; |
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} |
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static __device__ void mycpy4(uint32_t *d, const uint32_t *s) { |
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*d = *s; |
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} |
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// ---------------------------- BEGIN keccak functions ------------------------------------ |
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#define KECCAK_HASH "Keccak-512" |
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typedef struct keccak_hash_state_t { |
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uint64_t state[25]; // 25*2 |
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uint32_t buffer[72/4]; // 72 |
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} keccak_hash_state; |
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__device__ void statecopy0(keccak_hash_state *d, keccak_hash_state *s) |
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{ |
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#pragma unroll 25 |
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for (int i=0; i < 25; ++i) |
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d->state[i] = s->state[i]; |
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} |
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__device__ void statecopy8(keccak_hash_state *d, keccak_hash_state *s) |
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{ |
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#pragma unroll 25 |
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for (int i=0; i < 25; ++i) |
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d->state[i] = s->state[i]; |
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#pragma unroll 2 |
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for (int i=0; i < 2; ++i) |
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d->buffer[i] = s->buffer[i]; |
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} |
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static const uint64_t host_keccak_round_constants[24] = { |
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0x0000000000000001ull, 0x0000000000008082ull, |
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0x800000000000808aull, 0x8000000080008000ull, |
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0x000000000000808bull, 0x0000000080000001ull, |
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0x8000000080008081ull, 0x8000000000008009ull, |
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0x000000000000008aull, 0x0000000000000088ull, |
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0x0000000080008009ull, 0x000000008000000aull, |
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0x000000008000808bull, 0x800000000000008bull, |
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0x8000000000008089ull, 0x8000000000008003ull, |
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0x8000000000008002ull, 0x8000000000000080ull, |
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0x000000000000800aull, 0x800000008000000aull, |
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0x8000000080008081ull, 0x8000000000008080ull, |
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0x0000000080000001ull, 0x8000000080008008ull |
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}; |
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__constant__ uint64_t c_keccak_round_constants[24]; |
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__constant__ uint32_t pdata[20]; |
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__device__ |
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void keccak_block(keccak_hash_state *S, const uint32_t *in) { |
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size_t i; |
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uint64_t *s = S->state, t[5], u[5], v, w; |
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/* absorb input */ |
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#pragma unroll 9 |
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for (i = 0; i < 72 / 8; i++, in += 2) |
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s[i] ^= U32TO64_LE(in); |
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for (i = 0; i < 24; i++) { |
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/* theta: c = a[0,i] ^ a[1,i] ^ .. a[4,i] */ |
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t[0] = s[0] ^ s[5] ^ s[10] ^ s[15] ^ s[20]; |
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t[1] = s[1] ^ s[6] ^ s[11] ^ s[16] ^ s[21]; |
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t[2] = s[2] ^ s[7] ^ s[12] ^ s[17] ^ s[22]; |
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t[3] = s[3] ^ s[8] ^ s[13] ^ s[18] ^ s[23]; |
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t[4] = s[4] ^ s[9] ^ s[14] ^ s[19] ^ s[24]; |
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/* theta: d[i] = c[i+4] ^ rotl(c[i+1],1) */ |
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u[0] = t[4] ^ ROTL64(t[1], 1); |
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u[1] = t[0] ^ ROTL64(t[2], 1); |
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u[2] = t[1] ^ ROTL64(t[3], 1); |
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u[3] = t[2] ^ ROTL64(t[4], 1); |
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u[4] = t[3] ^ ROTL64(t[0], 1); |
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/* theta: a[0,i], a[1,i], .. a[4,i] ^= d[i] */ |
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s[0] ^= u[0]; s[5] ^= u[0]; s[10] ^= u[0]; s[15] ^= u[0]; s[20] ^= u[0]; |
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s[1] ^= u[1]; s[6] ^= u[1]; s[11] ^= u[1]; s[16] ^= u[1]; s[21] ^= u[1]; |
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s[2] ^= u[2]; s[7] ^= u[2]; s[12] ^= u[2]; s[17] ^= u[2]; s[22] ^= u[2]; |
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s[3] ^= u[3]; s[8] ^= u[3]; s[13] ^= u[3]; s[18] ^= u[3]; s[23] ^= u[3]; |
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s[4] ^= u[4]; s[9] ^= u[4]; s[14] ^= u[4]; s[19] ^= u[4]; s[24] ^= u[4]; |
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/* rho pi: b[..] = rotl(a[..], ..) */ |
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v = s[ 1]; |
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s[ 1] = ROTL64(s[ 6], 44); |
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s[ 6] = ROTL64(s[ 9], 20); |
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s[ 9] = ROTL64(s[22], 61); |
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s[22] = ROTL64(s[14], 39); |
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s[14] = ROTL64(s[20], 18); |
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s[20] = ROTL64(s[ 2], 62); |
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s[ 2] = ROTL64(s[12], 43); |
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s[12] = ROTL64(s[13], 25); |
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s[13] = ROTL64(s[19], 8); |
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s[19] = ROTL64(s[23], 56); |
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s[23] = ROTL64(s[15], 41); |
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s[15] = ROTL64(s[ 4], 27); |
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s[ 4] = ROTL64(s[24], 14); |
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s[24] = ROTL64(s[21], 2); |
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s[21] = ROTL64(s[ 8], 55); |
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s[ 8] = ROTL64(s[16], 45); |
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s[16] = ROTL64(s[ 5], 36); |
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s[ 5] = ROTL64(s[ 3], 28); |
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s[ 3] = ROTL64(s[18], 21); |
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s[18] = ROTL64(s[17], 15); |
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s[17] = ROTL64(s[11], 10); |
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s[11] = ROTL64(s[ 7], 6); |
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s[ 7] = ROTL64(s[10], 3); |
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s[10] = ROTL64( v, 1); |
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/* chi: a[i,j] ^= ~b[i,j+1] & b[i,j+2] */ |
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v = s[ 0]; w = s[ 1]; s[ 0] ^= (~w) & s[ 2]; s[ 1] ^= (~s[ 2]) & s[ 3]; s[ 2] ^= (~s[ 3]) & s[ 4]; s[ 3] ^= (~s[ 4]) & v; s[ 4] ^= (~v) & w; |
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v = s[ 5]; w = s[ 6]; s[ 5] ^= (~w) & s[ 7]; s[ 6] ^= (~s[ 7]) & s[ 8]; s[ 7] ^= (~s[ 8]) & s[ 9]; s[ 8] ^= (~s[ 9]) & v; s[ 9] ^= (~v) & w; |
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v = s[10]; w = s[11]; s[10] ^= (~w) & s[12]; s[11] ^= (~s[12]) & s[13]; s[12] ^= (~s[13]) & s[14]; s[13] ^= (~s[14]) & v; s[14] ^= (~v) & w; |
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v = s[15]; w = s[16]; s[15] ^= (~w) & s[17]; s[16] ^= (~s[17]) & s[18]; s[17] ^= (~s[18]) & s[19]; s[18] ^= (~s[19]) & v; s[19] ^= (~v) & w; |
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v = s[20]; w = s[21]; s[20] ^= (~w) & s[22]; s[21] ^= (~s[22]) & s[23]; s[22] ^= (~s[23]) & s[24]; s[23] ^= (~s[24]) & v; s[24] ^= (~v) & w; |
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/* iota: a[0,0] ^= round constant */ |
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s[0] ^= c_keccak_round_constants[i]; |
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} |
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} |
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__device__ |
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void keccak_hash_init(keccak_hash_state *S) { |
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#pragma unroll 25 |
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for (int i=0; i<25; ++i) |
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S->state[i] = 0ULL; |
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} |
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// assuming there is no leftover data and exactly 72 bytes are incoming |
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// we can directly call into the block hashing function |
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__device__ void keccak_hash_update72(keccak_hash_state *S, const uint32_t *in) { |
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keccak_block(S, in); |
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} |
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__device__ void keccak_hash_update8(keccak_hash_state *S, const uint32_t *in) { |
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mycpy8(S->buffer, in); |
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} |
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__device__ void keccak_hash_update4_8(keccak_hash_state *S, const uint32_t *in) { |
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mycpy4(S->buffer+8/4, in); |
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} |
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__device__ void keccak_hash_update4_56(keccak_hash_state *S, const uint32_t *in) { |
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mycpy4(S->buffer+56/4, in); |
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} |
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__device__ void keccak_hash_update56(keccak_hash_state *S, const uint32_t *in) { |
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mycpy56(S->buffer, in); |
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} |
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__device__ void keccak_hash_update64(keccak_hash_state *S, const uint32_t *in) { |
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mycpy64(S->buffer, in); |
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} |
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__device__ void keccak_hash_finish8(keccak_hash_state *S, uint32_t *hash) { |
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S->buffer[8/4] = 0x01; |
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#pragma unroll 15 |
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for (int i=8/4+1; i < 72/4; ++i) S->buffer[i] = 0; |
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S->buffer[72/4 - 1] |= 0x80000000; |
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keccak_block(S, (const uint32_t*)S->buffer); |
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#pragma unroll 8 |
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for (size_t i = 0; i < 64; i += 8) { |
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U64TO32_LE((&hash[i/4]), S->state[i / 8]); |
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} |
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} |
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__device__ void keccak_hash_finish12(keccak_hash_state *S, uint32_t *hash) { |
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S->buffer[12/4] = 0x01; |
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#pragma unroll 14 |
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for (int i=12/4+1; i < 72/4; ++i) S->buffer[i] = 0; |
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S->buffer[72/4 - 1] |= 0x80000000; |
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keccak_block(S, (const uint32_t*)S->buffer); |
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#pragma unroll 8 |
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for (size_t i = 0; i < 64; i += 8) { |
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U64TO32_LE((&hash[i/4]), S->state[i / 8]); |
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} |
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} |
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__device__ void keccak_hash_finish60(keccak_hash_state *S, uint32_t *hash) { |
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S->buffer[60/4] = 0x01; |
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#pragma unroll 2 |
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for (int i=60/4+1; i < 72/4; ++i) S->buffer[i] = 0; |
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S->buffer[72/4 - 1] |= 0x80000000; |
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keccak_block(S, (const uint32_t*)S->buffer); |
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#pragma unroll 8 |
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for (size_t i = 0; i < 64; i += 8) { |
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U64TO32_LE((&hash[i/4]), S->state[i / 8]); |
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} |
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} |
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__device__ void keccak_hash_finish64(keccak_hash_state *S, uint32_t *hash) { |
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S->buffer[64/4] = 0x01; |
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#pragma unroll 1 |
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for (int i=64/4+1; i < 72/4; ++i) S->buffer[i] = 0; |
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S->buffer[72/4 - 1] |= 0x80000000; |
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keccak_block(S, (const uint32_t*)S->buffer); |
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#pragma unroll 8 |
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for (size_t i = 0; i < 64; i += 8) { |
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U64TO32_LE((&hash[i/4]), S->state[i / 8]); |
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} |
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} |
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// ---------------------------- END keccak functions ------------------------------------ |
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// ---------------------------- BEGIN PBKDF2 functions ------------------------------------ |
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typedef struct pbkdf2_hmac_state_t { |
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keccak_hash_state inner, outer; |
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} pbkdf2_hmac_state; |
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__device__ void pbkdf2_hash(uint32_t *hash, const uint32_t *m) { |
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keccak_hash_state st; |
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keccak_hash_init(&st); |
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keccak_hash_update72(&st, m); |
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keccak_hash_update8(&st, m+72/4); |
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keccak_hash_finish8(&st, hash); |
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} |
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/* hmac */ |
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__device__ void pbkdf2_hmac_init80(pbkdf2_hmac_state *st, const uint32_t *key) { |
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uint32_t pad[72/4]; |
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size_t i; |
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keccak_hash_init(&st->inner); |
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keccak_hash_init(&st->outer); |
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#pragma unroll 18 |
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for (i = 0; i < 72/4; i++) |
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pad[i] = 0; |
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/* key > blocksize bytes, hash it */ |
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pbkdf2_hash(pad, key); |
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/* inner = (key ^ 0x36) */ |
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/* h(inner || ...) */ |
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#pragma unroll 18 |
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for (i = 0; i < 72/4; i++) |
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pad[i] ^= 0x36363636; |
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keccak_hash_update72(&st->inner, pad); |
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/* outer = (key ^ 0x5c) */ |
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/* h(outer || ...) */ |
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#pragma unroll 18 |
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for (i = 0; i < 72/4; i++) |
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pad[i] ^= 0x6a6a6a6a; |
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keccak_hash_update72(&st->outer, pad); |
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} |
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// assuming there is no leftover data and exactly 72 bytes are incoming |
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// we can directly call into the block hashing function |
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__device__ void pbkdf2_hmac_update72(pbkdf2_hmac_state *st, const uint32_t *m) { |
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/* h(inner || m...) */ |
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keccak_hash_update72(&st->inner, m); |
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} |
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__device__ void pbkdf2_hmac_update8(pbkdf2_hmac_state *st, const uint32_t *m) { |
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/* h(inner || m...) */ |
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keccak_hash_update8(&st->inner, m); |
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} |
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__device__ void pbkdf2_hmac_update4_8(pbkdf2_hmac_state *st, const uint32_t *m) { |
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/* h(inner || m...) */ |
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keccak_hash_update4_8(&st->inner, m); |
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} |
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__device__ void pbkdf2_hmac_update4_56(pbkdf2_hmac_state *st, const uint32_t *m) { |
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/* h(inner || m...) */ |
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keccak_hash_update4_56(&st->inner, m); |
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} |
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__device__ void pbkdf2_hmac_update56(pbkdf2_hmac_state *st, const uint32_t *m) { |
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/* h(inner || m...) */ |
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keccak_hash_update56(&st->inner, m); |
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} |
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__device__ void pbkdf2_hmac_finish12(pbkdf2_hmac_state *st, uint32_t *mac) { |
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/* h(inner || m) */ |
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uint32_t innerhash[16]; |
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keccak_hash_finish12(&st->inner, innerhash); |
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/* h(outer || h(inner || m)) */ |
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keccak_hash_update64(&st->outer, innerhash); |
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keccak_hash_finish64(&st->outer, mac); |
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} |
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__device__ void pbkdf2_hmac_finish60(pbkdf2_hmac_state *st, uint32_t *mac) { |
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/* h(inner || m) */ |
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uint32_t innerhash[16]; |
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keccak_hash_finish60(&st->inner, innerhash); |
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/* h(outer || h(inner || m)) */ |
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keccak_hash_update64(&st->outer, innerhash); |
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keccak_hash_finish64(&st->outer, mac); |
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} |
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__device__ void pbkdf2_statecopy8(pbkdf2_hmac_state *d, pbkdf2_hmac_state *s) { |
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statecopy8(&d->inner, &s->inner); |
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statecopy0(&d->outer, &s->outer); |
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} |
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// ---------------------------- END PBKDF2 functions ------------------------------------ |
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__global__ __launch_bounds__(128) |
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void cuda_pre_keccak512(uint32_t *g_idata, uint32_t nonce) |
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{ |
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nonce += (blockIdx.x * blockDim.x) + threadIdx.x; |
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g_idata += 32 * ((blockIdx.x * blockDim.x) + threadIdx.x); |
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uint32_t data[20]; |
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#pragma unroll |
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for (int i=0; i <19; ++i) |
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data[i] = cuda_swab32(pdata[i]); |
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data[19] = cuda_swab32(nonce); |
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// scrypt_pbkdf2_1((const uint8_t*)data, 80, (const uint8_t*)data, 80, (uint8_t*)g_idata, 128); |
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pbkdf2_hmac_state hmac_pw, work; |
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uint32_t ti[16]; |
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uint32_t be; |
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/* hmac(password, ...) */ |
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pbkdf2_hmac_init80(&hmac_pw, data); |
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/* hmac(password, salt...) */ |
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pbkdf2_hmac_update72(&hmac_pw, data); |
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pbkdf2_hmac_update8(&hmac_pw, data+72/4); |
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/* U1 = hmac(password, salt || be(i)) */ |
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be = cuda_swab32(1); |
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pbkdf2_statecopy8(&work, &hmac_pw); |
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pbkdf2_hmac_update4_8(&work, &be); |
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pbkdf2_hmac_finish12(&work, ti); |
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mycpy64(g_idata, ti); |
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be = cuda_swab32(2); |
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pbkdf2_statecopy8(&work, &hmac_pw); |
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pbkdf2_hmac_update4_8(&work, &be); |
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pbkdf2_hmac_finish12(&work, ti); |
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mycpy64(g_idata+16, ti); |
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} |
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__global__ __launch_bounds__(128) |
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void cuda_post_keccak512(uint32_t *g_odata, uint32_t *g_hash, uint32_t nonce) |
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{ |
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nonce += (blockIdx.x * blockDim.x) + threadIdx.x; |
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g_odata += 32 * ((blockIdx.x * blockDim.x) + threadIdx.x); |
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g_hash += 8 * ((blockIdx.x * blockDim.x) + threadIdx.x); |
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uint32_t data[20]; |
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#pragma unroll 19 |
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for (int i=0; i <19; ++i) |
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data[i] = cuda_swab32(pdata[i]); |
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data[19] = cuda_swab32(nonce); |
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// scrypt_pbkdf2_1((const uint8_t*)data, 80, (const uint8_t*)g_odata, 128, (uint8_t*)g_hash, 32); |
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pbkdf2_hmac_state hmac_pw; |
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uint32_t ti[16]; |
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uint32_t be; |
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/* hmac(password, ...) */ |
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pbkdf2_hmac_init80(&hmac_pw, data); |
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/* hmac(password, salt...) */ |
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pbkdf2_hmac_update72(&hmac_pw, g_odata); |
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pbkdf2_hmac_update56(&hmac_pw, g_odata+72/4); |
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/* U1 = hmac(password, salt || be(i)) */ |
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be = cuda_swab32(1); |
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pbkdf2_hmac_update4_56(&hmac_pw, &be); |
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pbkdf2_hmac_finish60(&hmac_pw, ti); |
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mycpy32(g_hash, ti); |
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} |
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// |
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// callable host code to initialize constants and to call kernels |
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// |
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extern "C" void prepare_keccak512(int thr_id, const uint32_t host_pdata[20]) |
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{ |
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static bool init[MAX_GPUS] = { 0 }; |
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if (!init[thr_id]) |
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{ |
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checkCudaErrors(cudaMemcpyToSymbol(c_keccak_round_constants, host_keccak_round_constants, sizeof(host_keccak_round_constants), 0, cudaMemcpyHostToDevice)); |
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init[thr_id] = true; |
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} |
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checkCudaErrors(cudaMemcpyToSymbol(pdata, host_pdata, 20*sizeof(uint32_t), 0, cudaMemcpyHostToDevice)); |
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} |
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extern "C" void pre_keccak512(int thr_id, int stream, uint32_t nonce, int throughput) |
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{ |
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dim3 block(128); |
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dim3 grid((throughput+127)/128); |
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cuda_pre_keccak512<<<grid, block, 0, context_streams[stream][thr_id]>>>(context_idata[stream][thr_id], nonce); |
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} |
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extern "C" void post_keccak512(int thr_id, int stream, uint32_t nonce, int throughput) |
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{ |
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dim3 block(128); |
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dim3 grid((throughput+127)/128); |
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cuda_post_keccak512<<<grid, block, 0, context_streams[stream][thr_id]>>>(context_odata[stream][thr_id], context_hash[stream][thr_id], nonce); |
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}
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