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| author | Mattias Andrée <maandree@operamail.com> | 2013-02-05 02:08:20 +0100 |
|---|---|---|
| committer | Mattias Andrée <maandree@operamail.com> | 2013-02-05 02:08:20 +0100 |
| commit | f00288a76da730087009a9f9810a7f332d64c862 (patch) | |
| tree | 4496bfb555c980e2c08cd2b6d1bd15410d18e928 /java | |
| parent | optimise first part of the theta step (diff) | |
| download | sha3sum-f00288a76da730087009a9f9810a7f332d64c862.tar.gz sha3sum-f00288a76da730087009a9f9810a7f332d64c862.tar.bz2 sha3sum-f00288a76da730087009a9f9810a7f332d64c862.tar.xz | |
java optimised
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'java')
| -rw-r--r-- | java/SHA3.java | 80 |
1 files changed, 34 insertions, 46 deletions
diff --git a/java/SHA3.java b/java/SHA3.java index f71b355..5b4796e 100644 --- a/java/SHA3.java +++ b/java/SHA3.java @@ -176,85 +176,73 @@ public class SHA3 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]; + long da, db, dc, dd, de; + if (SHA3.w == 64) { - /* θ step (step 2 of 3) */ - long da = SHA3.C[4] ^ SHA3.rotate64(SHA3.C[1], 1); - long db = SHA3.C[0] ^ SHA3.rotate64(SHA3.C[2], 1); - long dc = SHA3.C[1] ^ SHA3.rotate64(SHA3.C[3], 1); - long dd = SHA3.C[2] ^ SHA3.rotate64(SHA3.C[4], 1); - long de = SHA3.C[3] ^ SHA3.rotate64(SHA3.C[0], 1); - - /* ρ and π steps, with last part of θ */ - SHA3.B[0] = A[0] ^ da; - SHA3.B[1] = SHA3.rotate64(A[15] ^ dd, 28); - SHA3.B[2] = SHA3.rotate64(A[5] ^ db, 1); - SHA3.B[3] = SHA3.rotate64(A[20] ^ de, 27); - SHA3.B[4] = SHA3.rotate64(A[10] ^ dc, 62); + /* ρ and π steps, with last two part of θ */ + SHA3.B[0] = A[ 0] ^ (da = SHA3.C[4] ^ SHA3.rotate64(SHA3.C[1], 1)); + SHA3.B[1] = SHA3.rotate64(A[15] ^ (dd = SHA3.C[2] ^ SHA3.rotate64(SHA3.C[4], 1)), 28); + SHA3.B[2] = SHA3.rotate64(A[ 5] ^ (db = SHA3.C[0] ^ SHA3.rotate64(SHA3.C[2], 1)), 1); + SHA3.B[3] = SHA3.rotate64(A[20] ^ (de = SHA3.C[3] ^ SHA3.rotate64(SHA3.C[0], 1)), 27); + SHA3.B[4] = SHA3.rotate64(A[10] ^ (dc = SHA3.C[1] ^ SHA3.rotate64(SHA3.C[3], 1)), 62); - SHA3.B[5] = SHA3.rotate64(A[6] ^ db, 44); + SHA3.B[5] = SHA3.rotate64(A[ 6] ^ db, 44); SHA3.B[6] = SHA3.rotate64(A[21] ^ de, 20); - SHA3.B[7] = SHA3.rotate64(A[11] ^ dc, 6); - SHA3.B[8] = SHA3.rotate64(A[1] ^ da, 36); + SHA3.B[7] = SHA3.rotate64(A[11] ^ dc, 6); + SHA3.B[8] = SHA3.rotate64(A[ 1] ^ da, 36); SHA3.B[9] = SHA3.rotate64(A[16] ^ dd, 55); SHA3.B[10] = SHA3.rotate64(A[12] ^ dc, 43); - SHA3.B[11] = SHA3.rotate64(A[2] ^ da, 3); + SHA3.B[11] = SHA3.rotate64(A[ 2] ^ da, 3); SHA3.B[12] = SHA3.rotate64(A[17] ^ dd, 25); - SHA3.B[13] = SHA3.rotate64(A[7] ^ db, 10); + SHA3.B[13] = SHA3.rotate64(A[ 7] ^ db, 10); SHA3.B[14] = SHA3.rotate64(A[22] ^ de, 39); SHA3.B[15] = SHA3.rotate64(A[18] ^ dd, 21); - SHA3.B[16] = SHA3.rotate64(A[8] ^ db, 45); - SHA3.B[17] = SHA3.rotate64(A[23] ^ de, 8); + SHA3.B[16] = SHA3.rotate64(A[ 8] ^ db, 45); + SHA3.B[17] = SHA3.rotate64(A[23] ^ de, 8); SHA3.B[18] = SHA3.rotate64(A[13] ^ dc, 15); - SHA3.B[19] = SHA3.rotate64(A[3] ^ da, 41); + SHA3.B[19] = SHA3.rotate64(A[ 3] ^ da, 41); SHA3.B[20] = SHA3.rotate64(A[24] ^ de, 14); SHA3.B[21] = SHA3.rotate64(A[14] ^ dc, 61); - SHA3.B[22] = SHA3.rotate64(A[4] ^ da, 18); + SHA3.B[22] = SHA3.rotate64(A[ 4] ^ da, 18); SHA3.B[23] = SHA3.rotate64(A[19] ^ dd, 56); - SHA3.B[24] = SHA3.rotate64(A[9] ^ db, 2); + SHA3.B[24] = SHA3.rotate64(A[ 9] ^ db, 2); } else { - /* θ step (step 2 of 3) */ - long da = SHA3.C[4] ^ SHA3.rotate(SHA3.C[1], 1); - long db = SHA3.C[0] ^ SHA3.rotate(SHA3.C[2], 1); - long dc = SHA3.C[1] ^ SHA3.rotate(SHA3.C[3], 1); - long dd = SHA3.C[2] ^ SHA3.rotate(SHA3.C[4], 1); - long de = SHA3.C[3] ^ SHA3.rotate(SHA3.C[0], 1); - - /*ρ and π steps, with last part of θ */ - SHA3.B[0] = A[0] ^ da; - SHA3.B[1] = SHA3.rotate(A[15] ^ dd, 28); - SHA3.B[2] = SHA3.rotate(A[5] ^ db, 1); - SHA3.B[3] = SHA3.rotate(A[20] ^ de, 27); - SHA3.B[4] = SHA3.rotate(A[10] ^ dc, 62); + /* ρ and π steps, with last two part of θ */ + SHA3.B[0] = A[ 0] ^ (da = SHA3.C[4] ^ SHA3.rotate(SHA3.C[1], 1)); + SHA3.B[1] = SHA3.rotate(A[15] ^ (dd = SHA3.C[2] ^ SHA3.rotate(SHA3.C[4], 1)), 28); + SHA3.B[2] = SHA3.rotate(A[ 5] ^ (db = SHA3.C[0] ^ SHA3.rotate(SHA3.C[2], 1)), 1); + SHA3.B[3] = SHA3.rotate(A[20] ^ (de = SHA3.C[3] ^ SHA3.rotate(SHA3.C[0], 1)), 27); + SHA3.B[4] = SHA3.rotate(A[10] ^ (dc = SHA3.C[1] ^ SHA3.rotate(SHA3.C[3], 1)), 62); - SHA3.B[5] = SHA3.rotate(A[6] ^ db, 44); + SHA3.B[5] = SHA3.rotate(A[ 6] ^ db, 44); SHA3.B[6] = SHA3.rotate(A[21] ^ de, 20); - SHA3.B[7] = SHA3.rotate(A[11] ^ dc, 6); - SHA3.B[8] = SHA3.rotate(A[1] ^ da, 36); + SHA3.B[7] = SHA3.rotate(A[11] ^ dc, 6); + SHA3.B[8] = SHA3.rotate(A[ 1] ^ da, 36); SHA3.B[9] = SHA3.rotate(A[16] ^ dd, 55); SHA3.B[10] = SHA3.rotate(A[12] ^ dc, 43); - SHA3.B[11] = SHA3.rotate(A[2] ^ da, 3); + SHA3.B[11] = SHA3.rotate(A[ 2] ^ da, 3); SHA3.B[12] = SHA3.rotate(A[17] ^ dd, 25); - SHA3.B[13] = SHA3.rotate(A[7] ^ db, 10); + SHA3.B[13] = SHA3.rotate(A[ 7] ^ db, 10); SHA3.B[14] = SHA3.rotate(A[22] ^ de, 39); SHA3.B[15] = SHA3.rotate(A[18] ^ dd, 21); - SHA3.B[16] = SHA3.rotate(A[8] ^ db, 45); - SHA3.B[17] = SHA3.rotate(A[23] ^ de, 8); + SHA3.B[16] = SHA3.rotate(A[ 8] ^ db, 45); + SHA3.B[17] = SHA3.rotate(A[23] ^ de, 8); SHA3.B[18] = SHA3.rotate(A[13] ^ dc, 15); - SHA3.B[19] = SHA3.rotate(A[3] ^ da, 41); + SHA3.B[19] = SHA3.rotate(A[ 3] ^ da, 41); SHA3.B[20] = SHA3.rotate(A[24] ^ de, 14); SHA3.B[21] = SHA3.rotate(A[14] ^ dc, 61); - SHA3.B[22] = SHA3.rotate(A[4] ^ da, 18); + SHA3.B[22] = SHA3.rotate(A[ 4] ^ da, 18); SHA3.B[23] = SHA3.rotate(A[19] ^ dd, 56); - SHA3.B[24] = SHA3.rotate(A[9] ^ db, 2); + SHA3.B[24] = SHA3.rotate(A[ 9] ^ db, 2); } /* ξ step */ |