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authorJussi Kivilinna <jussi.kivilinna@iki.fi>2013-12-11 19:32:08 +0200
committerJussi Kivilinna <jussi.kivilinna@iki.fi>2013-12-12 23:41:37 +0200
commite1a3931263e67aacec3c0bfcaa86c7d1441d5c6a (patch)
treee38a42a3222c07e83bf1e438e4d02092392fa221 /doc/gcrypt.texi
parent5e1239b1e2948211ff2675f45cce2b28c3379cfb (diff)
downloadlibgcrypt-e1a3931263e67aacec3c0bfcaa86c7d1441d5c6a.tar.gz
SHA-256: Add SSSE3 implementation for x86-64
* cipher/Makefile.am: Add 'sha256-ssse3-amd64.S'. * cipher/sha256-ssse3-amd64.S: New. * cipher/sha256.c (USE_SSSE3): New. (SHA256_CONTEXT) [USE_SSSE3]: Add 'use_ssse3'. (sha256_init, sha224_init) [USE_SSSE3]: Initialize 'use_ssse3'. (transform): Rename to... (_transform): This. [USE_SSSE3] (_gcry_sha256_transform_amd64_ssse3): New. (transform): New. * configure.ac (HAVE_INTEL_SYNTAX_PLATFORM_AS): New check. (sha256): Add 'sha256-ssse3-amd64.lo'. * doc/gcrypt.texi: Document 'intel-ssse3'. * src/g10lib.h (HWF_INTEL_SSSE3): New. * src/hwfeatures.c (hwflist): Add "intel-ssse3". * src/hwf-x86.c (detect_x86_gnuc): Test for SSSE3. -- Patch adds fast SSSE3 implementation of SHA-256 by Intel Corporation. The assembly source is licensed under 3-clause BSD license, thus compatible with LGPL2.1+. Original source can be accessed at: http://www.intel.com/p/en_US/embedded/hwsw/technology/packet-processing#docs Implementation is described in white paper "Fast SHA - 256 Implementations on IntelĀ® Architecture Processors" http://www.intel.com/content/www/us/en/intelligent-systems/intel-technology/sha-256-implementations-paper.html Benchmarks: cpu Old New Diff Intel i5-4570 13.99 c/B 10.66 c/B 1.31x Intel i5-2450M 21.53 c/B 15.79 c/B 1.36x Intel Core2 T8100 20.84 c/B 15.07 c/B 1.38x Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'doc/gcrypt.texi')
-rw-r--r--doc/gcrypt.texi1
1 files changed, 1 insertions, 0 deletions
diff --git a/doc/gcrypt.texi b/doc/gcrypt.texi
index f3af29fc..0f7557dd 100644
--- a/doc/gcrypt.texi
+++ b/doc/gcrypt.texi
@@ -624,6 +624,7 @@ are
@item padlock-aes
@item padlock-sha
@item padlock-mmul
+@item intel-ssse3
@item intel-pclmul
@item intel-aesni
@item intel-rdrand