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| author | Mattias Andrée <maandree@operamail.com> | 2013-02-05 01:57:54 +0100 |
|---|---|---|
| committer | Mattias Andrée <maandree@operamail.com> | 2013-02-05 01:57:54 +0100 |
| commit | 9cbbaa9934b0ea50412ad425ded43beb195d9117 (patch) | |
| tree | 34d97bc38c9d8cbb6753ee01b101aeccd9b28d19 | |
| parent | a bit of optimisation on the round (last part) (diff) | |
| download | sha3sum-9cbbaa9934b0ea50412ad425ded43beb195d9117.tar.gz sha3sum-9cbbaa9934b0ea50412ad425ded43beb195d9117.tar.bz2 sha3sum-9cbbaa9934b0ea50412ad425ded43beb195d9117.tar.xz | |
optimise chi step
Signed-off-by: Mattias Andrée <maandree@operamail.com>
| -rw-r--r-- | java/SHA3.java | 38 |
1 files changed, 8 insertions, 30 deletions
diff --git a/java/SHA3.java b/java/SHA3.java index 27d5b2a..62a44b2 100644 --- a/java/SHA3.java +++ b/java/SHA3.java @@ -261,36 +261,14 @@ public class SHA3 } /* ξ step */ - A[0] = SHA3.B[0] ^ ((~(SHA3.B[5])) & SHA3.B[10]); - A[1] = SHA3.B[1] ^ ((~(SHA3.B[6])) & SHA3.B[11]); - A[2] = SHA3.B[2] ^ ((~(SHA3.B[7])) & SHA3.B[12]); - A[3] = SHA3.B[3] ^ ((~(SHA3.B[8])) & SHA3.B[13]); - A[4] = SHA3.B[4] ^ ((~(SHA3.B[9])) & SHA3.B[14]); - - A[5] = SHA3.B[5] ^ ((~(SHA3.B[10])) & SHA3.B[15]); - A[6] = SHA3.B[6] ^ ((~(SHA3.B[11])) & SHA3.B[16]); - A[7] = SHA3.B[7] ^ ((~(SHA3.B[12])) & SHA3.B[17]); - A[8] = SHA3.B[8] ^ ((~(SHA3.B[13])) & SHA3.B[18]); - A[9] = SHA3.B[9] ^ ((~(SHA3.B[14])) & SHA3.B[19]); - - A[10] = SHA3.B[10] ^ ((~(SHA3.B[15])) & SHA3.B[20]); - A[11] = SHA3.B[11] ^ ((~(SHA3.B[16])) & SHA3.B[21]); - A[12] = SHA3.B[12] ^ ((~(SHA3.B[17])) & SHA3.B[22]); - A[13] = SHA3.B[13] ^ ((~(SHA3.B[18])) & SHA3.B[23]); - A[14] = SHA3.B[14] ^ ((~(SHA3.B[19])) & SHA3.B[24]); - - A[15] = SHA3.B[15] ^ ((~(SHA3.B[20])) & SHA3.B[0]); - A[16] = SHA3.B[16] ^ ((~(SHA3.B[21])) & SHA3.B[1]); - A[17] = SHA3.B[17] ^ ((~(SHA3.B[22])) & SHA3.B[2]); - A[18] = SHA3.B[18] ^ ((~(SHA3.B[23])) & SHA3.B[3]); - A[19] = SHA3.B[19] ^ ((~(SHA3.B[24])) & SHA3.B[4]); - - A[20] = SHA3.B[20] ^ ((~(SHA3.B[0])) & SHA3.B[5]); - A[21] = SHA3.B[21] ^ ((~(SHA3.B[1])) & SHA3.B[6]); - A[22] = SHA3.B[22] ^ ((~(SHA3.B[2])) & SHA3.B[7]); - A[23] = SHA3.B[23] ^ ((~(SHA3.B[3])) & SHA3.B[8]); - A[24] = SHA3.B[24] ^ ((~(SHA3.B[4])) & SHA3.B[9]); - + for (int i = 0; i < 15; i++) + A[i ] = SHA3.B[i ] ^ ((~(SHA3.B[i + 5])) & SHA3.B[i + 10]); + for (int i = 0; i < 5; i++) + { + A[i + 15] = SHA3.B[i + 15] ^ ((~(SHA3.B[i + 20])) & SHA3.B[i ]); + A[i + 20] = SHA3.B[i + 20] ^ ((~(SHA3.B[i ])) & SHA3.B[i + 5]); + } + /* ι step */ A[0] ^= rc; } |