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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-10-01 21:47:53 +0300 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-11-06 19:23:00 +0200 |
| commit | a48d07ccadee4cb8b666a9a4ba2f00129bad5b2f (patch) | |
| tree | b7e7a05878e692864b554b0f7c1adc58d0c7c1e7 /cipher/cipher.c | |
| parent | 3b5058b58a183fa23ecf3ef819e2ae6ac64c0216 (diff) | |
| download | libgcrypt-a48d07ccadee4cb8b666a9a4ba2f00129bad5b2f.tar.gz | |
Speed up Stribog
* cipher/stribog.c (STRIBOG_TABLES): Remove.
(Pi): Remove.
[!STRIBOG_TABLES] (A, strido): Remove.
(stribog_table): New table pre-reordered with Pi values.
(strido): Rewrite for new table.
(LPSX): Rewrite for new table.
(xor): Remove.
(g): Small tweaks.
--
Patch optimizes the table-lookup implementation a bit. Patch also removes
the unused non-table implementation from source.
On Intel Core i5-4570 (amd64, 3.2Ghz):
After:
| nanosecs/byte mebibytes/sec cycles/byte
STRIBOG256 | 9.22 ns/B 103.4 MiB/s 29.53 c/B
STRIBOG512 | 9.23 ns/B 103.4 MiB/s 29.53 c/B
Before:
| nanosecs/byte mebibytes/sec cycles/byte
STRIBOG256 | 30.17 ns/B 31.61 MiB/s 96.56 c/B
STRIBOG512 | 30.20 ns/B 31.57 MiB/s 96.68 c/B
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'cipher/cipher.c')
0 files changed, 0 insertions, 0 deletions