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| author | Alex Beregszaszi <alex@rtfs.hu> | 2017-08-31 05:44:38 +0800 |
|---|---|---|
| committer | Alex Beregszaszi <alex@rtfs.hu> | 2017-09-20 08:23:21 +0800 |
| commit | 6cec0789b56add0dddb3c478111fb713c6d432c8 (patch) | |
| tree | f4502a2a5181aa80e972ea0ba37ab415fb1fffa3 | |
| parent | 1c0c5d923a73cf3542ae41791aa7061922b9db5a (diff) | |
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Limit of scope of variables in SHA3
| -rw-r--r-- | libdevcore/SHA3.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/libdevcore/SHA3.cpp b/libdevcore/SHA3.cpp index 4d82ec85..b0e40ccb 100644 --- a/libdevcore/SHA3.cpp +++ b/libdevcore/SHA3.cpp @@ -97,10 +97,9 @@ static const uint64_t RC[24] = \ static inline void keccakf(void* state) { uint64_t* a = (uint64_t*)state; uint64_t b[5] = {0}; - uint64_t t = 0; - uint8_t x, y; for (int i = 0; i < 24; i++) { + uint8_t x, y; // Theta FOR5(x, 1, b[x] = 0; @@ -110,7 +109,7 @@ static inline void keccakf(void* state) { FOR5(y, 5, a[y + x] ^= b[(x + 4) % 5] ^ rol(b[(x + 1) % 5], 1); )) // Rho and pi - t = a[1]; + uint64_t t = a[1]; x = 0; REPEAT24(b[0] = a[pi[x]]; a[pi[x]] = rol(t, rho[x]); |