aboutsummaryrefslogtreecommitdiffstats
path: root/java
diff options
context:
space:
mode:
authorMattias Andrée <maandree@operamail.com>2013-02-05 02:01:13 +0100
committerMattias Andrée <maandree@operamail.com>2013-02-05 02:01:13 +0100
commitf56eee5d320625f89c1e0b6b26c665e7506b127c (patch)
tree11cc1a0f07c80c9faf3b28768d6f0c8b6734aec6 /java
parentoptimise chi step (diff)
downloadsha3sum-f56eee5d320625f89c1e0b6b26c665e7506b127c.tar.gz
sha3sum-f56eee5d320625f89c1e0b6b26c665e7506b127c.tar.bz2
sha3sum-f56eee5d320625f89c1e0b6b26c665e7506b127c.tar.xz
optimise first part of the theta step
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to '')
-rw-r--r--java/SHA3.java7
1 files changed, 2 insertions, 5 deletions
diff --git a/java/SHA3.java b/java/SHA3.java
index 62a44b2..f71b355 100644
--- a/java/SHA3.java
+++ b/java/SHA3.java
@@ -173,11 +173,8 @@ public class SHA3
private static void keccakFRound(long[] A, long rc)
{
/* θ step (step 1 of 3) */
- SHA3.C[0] = (A[0] ^ A[1]) ^ (A[2] ^ A[3]) ^ A[4];
- SHA3.C[1] = (A[5] ^ A[6]) ^ (A[7] ^ A[8]) ^ A[9];
- SHA3.C[2] = (A[10] ^ A[11]) ^ (A[12] ^ A[13]) ^ A[14];
- SHA3.C[3] = (A[15] ^ A[16]) ^ (A[17] ^ A[18]) ^ A[19];
- SHA3.C[4] = (A[20] ^ A[21]) ^ (A[22] ^ A[23]) ^ A[24];
+ for (int i = 0, j = 0; i < 5; i++, j += 5)
+ SHA3.C[i] = (A[j] ^ A[j + 1]) ^ (A[j + 2] ^ A[j + 3]) ^ A[j + 4];
if (SHA3.w == 64)
{