Commit Graph

4 Commits

Author SHA1 Message Date
Mathias Krause
d8219f52a7 crypto: x86/des3_ede - drop bogus module aliases
This module implements variations of "des3_ede" only. Drop the bogus
module aliases for "des".

Cc: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-01-13 22:30:52 +11:00
Kees Cook
5d26a105b5 crypto: prefix module autoloading with "crypto-"
This prefixes all crypto module loading with "crypto-" so we never run
the risk of exposing module auto-loading to userspace via a crypto API,
as demonstrated by Mathias Krause:

https://lkml.org/lkml/2013/3/4/70

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-11-24 22:43:57 +08:00
Jussi Kivilinna
5e50d43d65 crypto: des3_ede-x86_64 - fix parse warning
Patch fixes following sparse warning:

  CHECK   arch/x86/crypto/des3_ede_glue.c
arch/x86/crypto/des3_ede_glue.c:308:52: warning: restricted __be64 degrades to integer
arch/x86/crypto/des3_ede_glue.c:309:52: warning: restricted __be64 degrades to integer
arch/x86/crypto/des3_ede_glue.c:310:52: warning: restricted __be64 degrades to integer
arch/x86/crypto/des3_ede_glue.c:326:44: warning: restricted __be64 degrades to integer

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-06-25 21:38:43 +08:00
Jussi Kivilinna
6574e6c64e crypto: des_3des - add x86-64 assembly implementation
Patch adds x86_64 assembly implementation of Triple DES EDE cipher algorithm.
Two assembly implementations are provided. First is regular 'one-block at
time' encrypt/decrypt function. Second is 'three-blocks at time' function that
gains performance increase on out-of-order CPUs.

tcrypt test results:

Intel Core i5-4570:

des3_ede-asm vs des3_ede-generic:
size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec
16B     1.21x   1.22x   1.27x   1.36x   1.25x   1.25x
64B     1.98x   1.96x   1.23x   2.04x   2.01x   2.00x
256B    2.34x   2.37x   1.21x   2.40x   2.38x   2.39x
1024B   2.50x   2.47x   1.22x   2.51x   2.52x   2.51x
8192B   2.51x   2.53x   1.21x   2.56x   2.54x   2.55x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-06-20 21:27:58 +08:00