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| author | SChernykh <SChernykh@users.noreply.github.com> | 2018-02-16 09:11:54 +0000 |
|---|---|---|
| committer | moneromooo-monero <moneromooo-monero@users.noreply.github.com> | 2018-03-05 18:18:43 +0000 |
| commit | d58c9ec99c3187ea41b594e9e5ae885f456f00fc (patch) | |
| tree | fed72e4978e138f85b969e2aab86915a329dd921 | |
| parent | Monero Cryptonight variants, and add one for v7 (diff) | |
| download | monero-d58c9ec99c3187ea41b594e9e5ae885f456f00fc.tar.xz | |
slow-hash: optimized version
| -rw-r--r-- | src/crypto/slow-hash.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/crypto/slow-hash.c b/src/crypto/slow-hash.c index 5bfc93021..f81aadfab 100644 --- a/src/crypto/slow-hash.c +++ b/src/crypto/slow-hash.c @@ -52,10 +52,10 @@ extern int aesb_pseudo_round(const uint8_t *in, uint8_t *out, const uint8_t *exp #define VARIANT1_1(p) \ do if (variant > 0) \ { \ - uint8_t tmp = ((const uint8_t*)p)[11]; \ - uint8_t tmp1 = (tmp>>4)&1, tmp2 = (tmp>>5)&1, tmp3 = tmp1^tmp2; \ - uint8_t tmp0 = (((const uint8_t*)p)[11] & 1) ? tmp3 : ((((tmp2<<1)|tmp1) + 1)&3); \ - ((uint8_t*)p)[11] = (((const uint8_t*)p)[11] & 1) ? ((tmp & 0xef) | (tmp0<<4)):((tmp & 0xcf) | (tmp0<<4)); \ + const uint8_t tmp = ((const uint8_t*)(p))[11]; \ + static const uint32_t table = 0x75310; \ + const uint8_t index = (((tmp >> 3) & 6) | (tmp & 1)) << 1; \ + ((uint8_t*)(p))[11] = tmp ^ ((table >> index) & 0x30); \ } while(0) #define VARIANT1_2(p) \ |