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| author | Shawn Landden <shawn@git.icu> | 2021-03-06 16:31:51 +0200 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2021-03-07 18:45:45 +0200 |
| commit | 440332532a1c107e2baeafda5464e0707f634be1 (patch) | |
| tree | f69d7a457c075007835fa35bb15c380ae9d00e44 /AUTHORS | |
| parent | 7c4c992fe96f781e387bd26a11b17e70a27aa3c0 (diff) | |
| download | libgcrypt-440332532a1c107e2baeafda5464e0707f634be1.tar.gz | |
VPMSUMD acceleration for GCM mode on PPC
* cipher/Makefile.am: Add 'cipher-gcm-ppc.c'.
* cipher/cipher-gcm-ppc.c: New.
* cipher/cipher-gcm.c [GCM_USE_PPC_VPMSUM] (_gcry_ghash_setup_ppc_vpmsum)
(_gcry_ghash_ppc_vpmsum, ghash_setup_ppc_vpsum, ghash_ppc_vpmsum): New.
(setupM) [GCM_USE_PPC_VPMSUM]: Select ppc-vpmsum implementation if
HW feature "ppc-vcrypto" is available.
* cipher/cipher-internal.h (GCM_USE_PPC_VPMSUM): New.
(gcry_cipher_handle): Move 'ghash_fn' at end of 'gcm' block to align
'gcm_table' to 16 bytes.
* configure.ac: Add 'cipher-gcm-ppc.lo'.
* tests/basic.c (_check_gcm_cipher): New AES256 test vector.
* AUTHORS: Add 'CRYPTOGAMS'.
* LICENSES: Add original license to 3-clause-BSD section.
--
https://dev.gnupg.org/D501:
10-20X speed.
However this Power 9 machine is faster than the last Power 9 benchmarks
on the optimized versions, so while better than the last patch, it is
not all due to the code.
Before:
GCM enc | 4.23 ns/B 225.3 MiB/s - c/B
GCM dec | 3.58 ns/B 266.2 MiB/s - c/B
GCM auth | 3.34 ns/B 285.3 MiB/s - c/B
After:
GCM enc | 0.370 ns/B 2578 MiB/s - c/B
GCM dec | 0.371 ns/B 2571 MiB/s - c/B
GCM auth | 0.159 ns/B 6003 MiB/s - c/B
Signed-off-by: Shawn Landden <shawn@git.icu>
[jk: coding style fixes, Makefile.am integration, patch from Differential
to git, commit changelog, fixed few compiler warnings]
GnuPG-bug-id: 5040
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'AUTHORS')
| -rw-r--r-- | AUTHORS | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -30,6 +30,7 @@ List of Copyright holders Copyright (C) 1996-1999 Peter Gutmann, Paul Kendall, and Chris Wedgwood Copyright (C) 1996-2006 Peter Gutmann, Matt Thomlinson and Blake Coverett Copyright (C) 2003 Nikos Mavroyanopoulos + Copyright (c) 2006 CRYPTOGAMS Copyright (C) 2006-2007 NTT (Nippon Telegraph and Telephone Corporation) Copyright (C) 2012-2021 g10 Code GmbH Copyright (C) 2012 Simon Josefsson, Niels Möller |