From 323b1eb80ff3396d83fedbe5bba9a4e6c412d192 Mon Sep 17 00:00:00 2001 From: Jussi Kivilinna Date: Fri, 16 May 2014 21:28:26 +0300 Subject: chacha20: add SSE2/AMD64 optimized implementation * cipher/Makefile.am: Add 'chacha20-sse2-amd64.S'. * cipher/chacha20-sse2-amd64.S: New. * cipher/chacha20.c (USE_SSE2): New. [USE_SSE2] (_gcry_chacha20_amd64_sse2_blocks): New. (chacha20_do_setkey) [USE_SSE2]: Use SSE2 implementation for blocks function. * configure.ac [host=x86-64]: Add 'chacha20-sse2-amd64.lo'. -- Add Andrew Moon's public domain SSE2 implementation of ChaCha20. Original source is available at: https://github.com/floodyberry/chacha-opt Benchmark on Intel i5-4570 (haswell), with "--disable-hwf intel-avx2 --disable-hwf intel-ssse3": Old: CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte STREAM enc | 1.97 ns/B 483.8 MiB/s 6.31 c/B STREAM dec | 1.97 ns/B 483.6 MiB/s 6.31 c/B New: CHACHA20 | nanosecs/byte mebibytes/sec cycles/byte STREAM enc | 0.931 ns/B 1024.7 MiB/s 2.98 c/B STREAM dec | 0.930 ns/B 1025.0 MiB/s 2.98 c/B Signed-off-by: Jussi Kivilinna --- configure.ac | 1 + 1 file changed, 1 insertion(+) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index 47a322be..c5952c7d 100644 --- a/configure.ac +++ b/configure.ac @@ -1815,6 +1815,7 @@ if test "$found" = "1" ; then case "${host}" in x86_64-*-*) # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS chacha20-sse2-amd64.lo" GCRYPT_CIPHERS="$GCRYPT_CIPHERS chacha20-ssse3-amd64.lo" GCRYPT_CIPHERS="$GCRYPT_CIPHERS chacha20-avx2-amd64.lo" ;; -- cgit v1.2.1