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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2014-05-11 12:00:19 +0300 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2014-05-11 12:00:19 +0300 |
| commit | def7d4cad386271c6d4e2f10aabe0cb4abd871e4 (patch) | |
| tree | 173fee5e8ff2ed596a57cdae5c160811fe506d23 /configure.ac | |
| parent | 23f33d57c9b6f2295a8ddfc9a8eee5a2c30cf406 (diff) | |
| download | libgcrypt-def7d4cad386271c6d4e2f10aabe0cb4abd871e4.tar.gz | |
chacha20: add SSSE3 assembly implementation
* cipher/Makefile.am: Add 'chacha20-ssse3-amd64.S'.
* cipher/chacha20-ssse3-amd64.S: New.
* cipher/chacha20.c (USE_SSSE3): New macro.
[USE_SSSE3] (_gcry_chacha20_amd64_ssse3_blocks): New.
(chacha20_do_setkey): Select SSSE3 implementation if there is HW
support.
* configure.ac [host=x86-64]: Add 'chacha20-ssse3-amd64.lo'.
--
Add SSSE3 optimized implementation for ChaCha20. Based on implementation
by Andrew Moon.
Before (Intel Haswell):
CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte
STREAM enc | 1.97 ns/B 483.6 MiB/s 6.31 c/B
STREAM dec | 1.97 ns/B 484.0 MiB/s 6.31 c/B
After:
CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte
STREAM enc | 0.742 ns/B 1284.8 MiB/s 2.38 c/B
STREAM dec | 0.741 ns/B 1286.5 MiB/s 2.37 c/B
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 7573952e..0342067f 100644 --- a/configure.ac +++ b/configure.ac @@ -1811,6 +1811,13 @@ LIST_MEMBER(chacha20, $enabled_ciphers) if test "$found" = "1" ; then GCRYPT_CIPHERS="$GCRYPT_CIPHERS chacha20.lo" AC_DEFINE(USE_CHACHA20, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS chacha20-ssse3-amd64.lo" + ;; + esac fi LIST_MEMBER(dsa, $enabled_pubkey_ciphers) |