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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-12-30 15:10:13 +0200 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-12-30 15:10:13 +0200 |
| commit | 7547898109c72a97e3102b2a045ee4fdb2aa40bf (patch) | |
| tree | 2f49ce05d804a1587435633a4b11cddc94fbf0c5 /configure.ac | |
| parent | a05be441d8cd89b90d8d58e3a343a436dae377d0 (diff) | |
| download | libgcrypt-7547898109c72a97e3102b2a045ee4fdb2aa40bf.tar.gz | |
Add AMD64 assembly implementation for arcfour
* cipher/Makefile.am: Add 'arcfour-amd64.S'.
* cipher/arcfour-amd64.S: New.
* cipher/arcfour.c (USE_AMD64_ASM): New.
[USE_AMD64_ASM] (ARCFOUR_context, _gcry_arcfour_amd64)
(encrypt_stream): New.
* configure.ac [host=x86_64]: Add 'arcfour-amd64.lo'.
--
Patch adds Marc Bevand's public-domain AMD64 assembly implementation of RC4 to
libgcrypt. Original implementation is at:
http://www.zorinaq.com/papers/rc4-amd64.html
Benchmarks on Intel i5-4570 (3200 Mhz):
New:
ARCFOUR | nanosecs/byte mebibytes/sec cycles/byte
STREAM enc | 1.29 ns/B 737.7 MiB/s 4.14 c/B
STREAM dec | 1.31 ns/B 730.6 MiB/s 4.18 c/B
Old (C-language):
ARCFOUR | nanosecs/byte mebibytes/sec cycles/byte
STREAM enc | 2.09 ns/B 457.4 MiB/s 6.67 c/B
STREAM dec | 2.09 ns/B 457.2 MiB/s 6.68 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 8b43d9a8..1715161b 100644 --- a/configure.ac +++ b/configure.ac @@ -1505,6 +1505,13 @@ LIST_MEMBER(arcfour, $enabled_ciphers) if test "$found" = "1"; then GCRYPT_CIPHERS="$GCRYPT_CIPHERS arcfour.lo" AC_DEFINE(USE_ARCFOUR, 1, [Defined if this module should be included]) + + case "${host}" in + x86_64-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS arcfour-amd64.lo" + ;; + esac fi LIST_MEMBER(blowfish, $enabled_ciphers) |