diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/crypto/slow-hash.c | 340 |
1 files changed, 223 insertions, 117 deletions
diff --git a/src/crypto/slow-hash.c b/src/crypto/slow-hash.c index 747cdec65..35438dcab 100644 --- a/src/crypto/slow-hash.c +++ b/src/crypto/slow-hash.c @@ -11,145 +11,251 @@ #include "hash-ops.h" #include "oaes_lib.h" -static void (*const extra_hashes[4])(const void *, size_t, char *) = { - hash_extra_blake, hash_extra_groestl, hash_extra_jh, hash_extra_skein -}; +#include <emmintrin.h> + +#if defined(_MSC_VER) || defined(__INTEL_COMPILER) +#include <intrin.h> +#define STATIC +#define INLINE __inline +#if !defined(RDATA_ALIGN16) +#define RDATA_ALIGN16 __declspec(align(16)) +#endif +#else +#include <wmmintrin.h> +#define STATIC static +#define INLINE inline +#if !defined(RDATA_ALIGN16) +#define RDATA_ALIGN16 __attribute__ ((aligned(16))) +#endif +#endif -#define MEMORY (1 << 21) /* 2 MiB */ +#define MEMORY (1 << 21) // 2MB scratchpad #define ITER (1 << 20) #define AES_BLOCK_SIZE 16 -#define AES_KEY_SIZE 32 /*16*/ +#define AES_KEY_SIZE 32 #define INIT_SIZE_BLK 8 #define INIT_SIZE_BYTE (INIT_SIZE_BLK * AES_BLOCK_SIZE) +#define U64(x) ((uint64_t *) (x)) +#define R128(x) ((__m128i *) (x)) + extern int aesb_single_round(const uint8_t *in, uint8_t*out, const uint8_t *expandedKey); extern int aesb_pseudo_round(const uint8_t *in, uint8_t *out, const uint8_t *expandedKey); -static size_t e2i(const uint8_t* a, size_t count) { return (*((uint64_t*)a) / AES_BLOCK_SIZE) & (count - 1); } +#pragma pack(push, 1) +union cn_slow_hash_state +{ + union hash_state hs; + struct + { + uint8_t k[64]; + uint8_t init[INIT_SIZE_BYTE]; + }; +}; +#pragma pack(pop) + +#if defined(_MSC_VER) || defined(__INTEL_COMPILER) +#define cpuid(info,x) __cpuidex(info,x,0) +#else +void cpuid(int CPUInfo[4], int InfoType) +{ + __asm__ __volatile__ + ( + "cpuid": + "=a" (CPUInfo[0]), + "=b" (CPUInfo[1]), + "=c" (CPUInfo[2]), + "=d" (CPUInfo[3]) : + "a" (InfoType), "c" (0) + ); +} +#endif -static void mul(const uint8_t* a, const uint8_t* b, uint8_t* res) { - uint64_t a0, b0; - uint64_t hi, lo; +STATIC INLINE void mul(const uint8_t *a, const uint8_t *b, uint8_t *res) +{ + uint64_t a0, b0; + uint64_t hi, lo; - a0 = SWAP64LE(((uint64_t*)a)[0]); - b0 = SWAP64LE(((uint64_t*)b)[0]); - lo = mul128(a0, b0, &hi); - ((uint64_t*)res)[0] = SWAP64LE(hi); - ((uint64_t*)res)[1] = SWAP64LE(lo); + a0 = U64(a)[0]; + b0 = U64(b)[0]; + lo = mul128(a0, b0, &hi); + U64(res)[0] = hi; + U64(res)[1] = lo; } -static void sum_half_blocks(uint8_t* a, const uint8_t* b) { - uint64_t a0, a1, b0, b1; - - a0 = SWAP64LE(((uint64_t*)a)[0]); - a1 = SWAP64LE(((uint64_t*)a)[1]); - b0 = SWAP64LE(((uint64_t*)b)[0]); - b1 = SWAP64LE(((uint64_t*)b)[1]); - a0 += b0; - a1 += b1; - ((uint64_t*)a)[0] = SWAP64LE(a0); - ((uint64_t*)a)[1] = SWAP64LE(a1); +STATIC INLINE void sum_half_blocks(uint8_t *a, const uint8_t *b) +{ + uint64_t a0, a1, b0, b1; + a0 = U64(a)[0]; + a1 = U64(a)[1]; + b0 = U64(b)[0]; + b1 = U64(b)[1]; + a0 += b0; + a1 += b1; + U64(a)[0] = a0; + U64(a)[1] = a1; } -#define U64(x) ((uint64_t *) (x)) -static void copy_block(uint8_t* dst, const uint8_t* src) { - memcpy(dst, src, AES_BLOCK_SIZE); +STATIC INLINE void swap_blocks(uint8_t *a, uint8_t *b) +{ + uint64_t t[2]; + U64(t)[0] = U64(a)[0]; + U64(t)[1] = U64(a)[1]; + U64(a)[0] = U64(b)[0]; + U64(a)[1] = U64(b)[1]; + U64(b)[0] = U64(t)[0]; + U64(b)[1] = U64(t)[1]; } -static void swap_blocks(uint8_t *a, uint8_t *b){ - uint64_t t[2]; - U64(t)[0] = U64(a)[0]; - U64(t)[1] = U64(a)[1]; - U64(a)[0] = U64(b)[0]; - U64(a)[1] = U64(b)[1]; - U64(b)[0] = U64(t)[0]; - U64(b)[1] = U64(t)[1]; +STATIC INLINE void xor_blocks(uint8_t *a, const uint8_t *b) +{ + U64(a)[0] ^= U64(b)[0]; + U64(a)[1] ^= U64(b)[1]; } -static void xor_blocks(uint8_t* a, const uint8_t* b) { - size_t i; - for (i = 0; i < AES_BLOCK_SIZE; i++) { - a[i] ^= b[i]; - } +STATIC INLINE int check_aes_hw(void) +{ + int cpuid_results[4]; + static int supported = -1; + + if(supported >= 0) + return supported; + + cpuid(cpuid_results,1); + return supported = cpuid_results[2] & (1 << 25); } -#pragma pack(push, 1) -union cn_slow_hash_state { - union hash_state hs; - struct { - uint8_t k[64]; - uint8_t init[INIT_SIZE_BYTE]; - }; -}; -#pragma pack(pop) +STATIC INLINE void aesni_pseudo_round(const uint8_t *in, uint8_t *out, + const uint8_t *expandedKey) +{ + __m128i *k = R128(expandedKey); + __m128i d; + + d = _mm_loadu_si128(R128(in)); + d = _mm_aesenc_si128(d, *R128(&k[0])); + d = _mm_aesenc_si128(d, *R128(&k[1])); + d = _mm_aesenc_si128(d, *R128(&k[2])); + d = _mm_aesenc_si128(d, *R128(&k[3])); + d = _mm_aesenc_si128(d, *R128(&k[4])); + d = _mm_aesenc_si128(d, *R128(&k[5])); + d = _mm_aesenc_si128(d, *R128(&k[6])); + d = _mm_aesenc_si128(d, *R128(&k[7])); + d = _mm_aesenc_si128(d, *R128(&k[8])); + d = _mm_aesenc_si128(d, *R128(&k[9])); + _mm_storeu_si128((R128(out)), d); +} + +void cn_slow_hash(const void *data, size_t length, char *hash) +{ + uint8_t long_state[MEMORY]; + uint8_t text[INIT_SIZE_BYTE]; + uint8_t a[AES_BLOCK_SIZE]; + uint8_t b[AES_BLOCK_SIZE]; + uint8_t d[AES_BLOCK_SIZE]; + uint8_t aes_key[AES_KEY_SIZE]; + RDATA_ALIGN16 uint8_t expandedKey[256]; + + union cn_slow_hash_state state; -void cn_slow_hash(const void *data, size_t length, char *hash) { - uint8_t long_state[MEMORY]; - union cn_slow_hash_state state; - uint8_t text[INIT_SIZE_BYTE]; - uint8_t a[AES_BLOCK_SIZE]; - uint8_t b[AES_BLOCK_SIZE]; - uint8_t c[AES_BLOCK_SIZE]; - uint8_t d[AES_BLOCK_SIZE]; - size_t i, j; - uint8_t aes_key[AES_KEY_SIZE]; - oaes_ctx *aes_ctx; - - hash_process(&state.hs, data, length); - memcpy(text, state.init, INIT_SIZE_BYTE); - memcpy(aes_key, state.hs.b, AES_KEY_SIZE); - aes_ctx = (oaes_ctx *) oaes_alloc(); - - oaes_key_import_data(aes_ctx, aes_key, AES_KEY_SIZE); - for (i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) { - for (j = 0; j < INIT_SIZE_BLK; j++) { - aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data); + size_t i, j; + uint8_t *p = NULL; + oaes_ctx *aes_ctx; + + int useAes = check_aes_hw(); + static void (*const extra_hashes[4])(const void *, size_t, char *) = + { + hash_extra_blake, hash_extra_groestl, hash_extra_jh, hash_extra_skein + }; + + hash_process(&state.hs, data, length); + memcpy(text, state.init, INIT_SIZE_BYTE); + + aes_ctx = (oaes_ctx *) oaes_alloc(); + oaes_key_import_data(aes_ctx, state.hs.b, AES_KEY_SIZE); + + // use aligned data + memcpy(expandedKey, aes_ctx->key->exp_data, aes_ctx->key->exp_data_len); + + if(useAes) + { + for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) + { + for(j = 0; j < INIT_SIZE_BLK; j++) + aesni_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], expandedKey); + memcpy(&long_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE); + } + } + else + { + for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) + { + for(j = 0; j < INIT_SIZE_BLK; j++) + aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], expandedKey); + + memcpy(&long_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE); + } + } + + U64(a)[0] = U64(&state.k[0])[0] ^ U64(&state.k[32])[0]; + U64(a)[1] = U64(&state.k[0])[1] ^ U64(&state.k[32])[1]; + U64(b)[0] = U64(&state.k[16])[0] ^ U64(&state.k[48])[0]; + U64(b)[1] = U64(&state.k[16])[1] ^ U64(&state.k[48])[1]; + + for(i = 0; i < ITER / 2; i++) + { + #define TOTALBLOCKS (MEMORY / AES_BLOCK_SIZE) + #define state_index(x) (((*((uint64_t *)x) >> 4) & (TOTALBLOCKS - 1)) << 4) + + // Iteration 1 + p = &long_state[state_index(a)]; + + if(useAes) + _mm_storeu_si128(R128(p), _mm_aesenc_si128(_mm_loadu_si128(R128(p)), _mm_loadu_si128(R128(a)))); + else + aesb_single_round(p, p, a); + + xor_blocks(b, p); + swap_blocks(b, p); + swap_blocks(a, b); + + // Iteration 2 + p = &long_state[state_index(a)]; + + mul(a, p, d); + sum_half_blocks(b, d); + swap_blocks(b, p); + xor_blocks(b, p); + swap_blocks(a, b); + } + + memcpy(text, state.init, INIT_SIZE_BYTE); + oaes_key_import_data(aes_ctx, &state.hs.b[32], AES_KEY_SIZE); + memcpy(expandedKey, aes_ctx->key->exp_data, aes_ctx->key->exp_data_len); + if(useAes) + { + for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) + { + for(j = 0; j < INIT_SIZE_BLK; j++) + { + xor_blocks(&text[j * AES_BLOCK_SIZE], &long_state[i * INIT_SIZE_BYTE + j * AES_BLOCK_SIZE]); + aesni_pseudo_round(&text[j * AES_BLOCK_SIZE], &text[j * AES_BLOCK_SIZE], expandedKey); + } + } } - memcpy(&long_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE); - } - - for (i = 0; i < 16; i++) { - a[i] = state.k[ i] ^ state.k[32 + i]; - b[i] = state.k[16 + i] ^ state.k[48 + i]; - } - - for (i = 0; i < ITER / 2; i++) { - /* Dependency chain: address -> read value ------+ - * written value <-+ hard function (AES or MUL) <+ - * next address <-+ - */ - /* Iteration 1 */ - j = e2i(a, MEMORY / AES_BLOCK_SIZE); - copy_block(c, &long_state[j * AES_BLOCK_SIZE]); - aesb_single_round(c, c, a); - xor_blocks(b, c); - swap_blocks(b, c); - copy_block(&long_state[j * AES_BLOCK_SIZE], c); - assert(j == e2i(a, MEMORY / AES_BLOCK_SIZE)); - swap_blocks(a, b); - /* Iteration 2 */ - j = e2i(a, MEMORY / AES_BLOCK_SIZE); - copy_block(c, &long_state[j * AES_BLOCK_SIZE]); - mul(a, c, d); - sum_half_blocks(b, d); - swap_blocks(b, c); - xor_blocks(b, c); - copy_block(&long_state[j * AES_BLOCK_SIZE], c); - assert(j == e2i(a, MEMORY / AES_BLOCK_SIZE)); - swap_blocks(a, b); - } - - memcpy(text, state.init, INIT_SIZE_BYTE); - oaes_key_import_data(aes_ctx, &state.hs.b[32], AES_KEY_SIZE); - for (i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) { - for (j = 0; j < INIT_SIZE_BLK; j++) { - xor_blocks(&text[j * AES_BLOCK_SIZE], &long_state[i * INIT_SIZE_BYTE + j * AES_BLOCK_SIZE]); - aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data); + else + { + for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) + { + for(j = 0; j < INIT_SIZE_BLK; j++) + { + xor_blocks(&text[j * AES_BLOCK_SIZE], &long_state[i * INIT_SIZE_BYTE + j * AES_BLOCK_SIZE]); + aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], expandedKey); + } + } } - } - memcpy(state.init, text, INIT_SIZE_BYTE); - hash_permutation(&state.hs); - /*memcpy(hash, &state, 32);*/ - extra_hashes[state.hs.b[0] & 3](&state, 200, hash); - oaes_free((OAES_CTX **) &aes_ctx); + + oaes_free((OAES_CTX **) &aes_ctx); + memcpy(state.init, text, INIT_SIZE_BYTE); + hash_permutation(&state.hs); + extra_hashes[state.hs.b[0] & 3](&state, 200, hash); } |