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use pre-calculated F0 and F1

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orignal 2017-05-08 12:42:35 -04:00
parent 2ec3b4dfc2
commit 601880ade8
1 changed files with 20 additions and 18 deletions
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38
gost/cuda_gosthash.cu
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@ -595,6 +595,18 @@ __constant__ static uint64_t CC[12][8] = {{
}};
__constant__ static uint64_t F0[8] = // GOST_F(0)
{
0x74a5d4ce2efc83b3, 0x74a5d4ce2efc83b3, 0x74a5d4ce2efc83b3, 0x74a5d4ce2efc83b3,
0x74a5d4ce2efc83b3, 0x74a5d4ce2efc83b3, 0x74a5d4ce2efc83b3, 0x74a5d4ce2efc83b3
};
__constant__ static uint64_t F1[8] = // GOST_F(1)
{
0x155f7bb040eec523, 0x155f7bb040eec523, 0x155f7bb040eec523, 0x155f7bb040eec523,
0x155f7bb040eec523, 0x155f7bb040eec523, 0x155f7bb040eec523, 0x155f7bb040eec523
};
__device__ __forceinline__
void GOST_Add512(void *x, void * const a, void * const b)
{
@ -684,22 +696,22 @@ static void GOST_F(uint64_t* state)
__device__
static void GOST_E12(uint64_t* K, uint64_t *state)
static void GOST_E12(uint64_t* const K, uint64_t *state)
{
uint64_t state1[8], K1[8];
GOST_Copy512(K1, K);
//#pragma unroll 1
for(int i=0; i<12; i++)
{
GOST_Xor512(state1, K1, CC[i]);
GOST_FS(state1, K1);
GOST_FS(state, state1);
GOST_Xor512(K, K1, CC[i]);
GOST_FS(K, K1);
GOST_Xor512(state, state1, K1);
}
}
__device__
void GOST_E(uint64_t* K, uint64_t* const m, uint64_t *state /* out only */)
void GOST_E(uint64_t* const K, uint64_t* const m, uint64_t *state /* out only */)
{
GOST_Xor512(state, m, K); // state = m ^ K
GOST_E12(K, state);
@ -737,25 +749,15 @@ void GOST_g_0(uint64_t* h, uint64_t* const M)
__device__
void GOST_g_0_0(uint64_t* h, uint64_t* const M) // input h assumed zero, for iv 512
{
#pragma unroll
for(int i = 0; i < 8; i++) h[i] = 0x74a5d4ce2efc83b3; // GOST_F(0)
uint64_t t[8];
GOST_E(h, M, t);
GOST_Xor512 (h, t, M); // h = t ^ M
GOST_E(F0, M, h);
GOST_Xor512 (h, h, M); // h = h ^ M
}
__device__
void GOST_g_0_1(uint64_t* h, uint64_t* const M) // input h assumed all bytes one, for iv 256
{
#pragma unroll
for(int i = 0; i < 8; i++) h[i] = 0x155f7bb040eec523; // GOST_F(1)
uint64_t t[8];
GOST_E(h, M, t);
GOST_Xor512_c(h, t, M, 0x0101010101010101); // h = t ^ M ^ 1
GOST_E(F1, M, h);
GOST_Xor512_c(h, h, M, 0x0101010101010101); // h = h ^ M ^ 1
}
__global__