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RISC-V: added vectorized soft AES

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SChernykh
2025-12-05 21:09:22 +01:00
parent 7ef5142a52
commit 23da1a90f5
5 changed files with 231 additions and 0 deletions
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47
src/crypto/randomx/soft_aes.cpp
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@@ -39,6 +39,9 @@ alignas(64) uint32_t lutDec1[256];
alignas(64) uint32_t lutDec2[256];
alignas(64) uint32_t lutDec3[256];
alignas(64) uint8_t lutEncIndex[4][32];
alignas(64) uint8_t lutDecIndex[4][32];
static uint32_t mul_gf2(uint32_t b, uint32_t c)
{
uint32_t s = 0;
@@ -115,5 +118,49 @@ static struct SAESInitializer
lutDec2[i] = w; w = (w << 8) | (w >> 24);
lutDec3[i] = w;
}
memset(lutEncIndex, -1, sizeof(lutEncIndex));
memset(lutDecIndex, -1, sizeof(lutDecIndex));
lutEncIndex[0][ 0] = 0;
lutEncIndex[0][ 4] = 4;
lutEncIndex[0][ 8] = 8;
lutEncIndex[0][12] = 12;
lutEncIndex[1][ 0] = 5;
lutEncIndex[1][ 4] = 9;
lutEncIndex[1][ 8] = 13;
lutEncIndex[1][12] = 1;
lutEncIndex[2][ 0] = 10;
lutEncIndex[2][ 4] = 14;
lutEncIndex[2][ 8] = 2;
lutEncIndex[2][12] = 6;
lutEncIndex[3][ 0] = 15;
lutEncIndex[3][ 4] = 3;
lutEncIndex[3][ 8] = 7;
lutEncIndex[3][12] = 11;
lutDecIndex[0][ 0] = 0;
lutDecIndex[0][ 4] = 4;
lutDecIndex[0][ 8] = 8;
lutDecIndex[0][12] = 12;
lutDecIndex[1][ 0] = 13;
lutDecIndex[1][ 4] = 1;
lutDecIndex[1][ 8] = 5;
lutDecIndex[1][12] = 9;
lutDecIndex[2][ 0] = 10;
lutDecIndex[2][ 4] = 14;
lutDecIndex[2][ 8] = 2;
lutDecIndex[2][12] = 6;
lutDecIndex[3][ 0] = 7;
lutDecIndex[3][ 4] = 11;
lutDecIndex[3][ 8] = 15;
lutDecIndex[3][12] = 3;
for (uint32_t i = 0; i < 4; ++i) {
for (uint32_t j = 0; j < 16; j += 4) {
lutEncIndex[i][j + 16] = lutEncIndex[i][j] + 16;
lutDecIndex[i][j + 16] = lutDecIndex[i][j] + 16;
}
}
}
} aes_initializer;