path: root/crypto
diff options
authorJoachim Fritschi <jfritschi@freenet.de>2006-06-20 21:12:02 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2006-09-21 11:16:29 +1000
commiteaf44088ff467410dd15a033fef118888002ffe6 (patch)
tree72b225b910342ae74e1b0915ceff61b4ead97883 /crypto
parent[CRYPTO] twofish: i586 assembly version (diff)
[CRYPTO] twofish: x86-64 assembly version
The patch passed the trycpt tests and automated filesystem tests. This rewrite resulted in some nice perfomance increase over my last patch. Short summary of the tcrypt benchmarks: Twofish Assembler vs. Twofish C (256bit 8kb block CBC) encrypt: -27% Cycles decrypt: -23% Cycles Twofish Assembler vs. AES Assembler (128bit 8kb block CBC) encrypt: +18% Cycles decrypt: +15% Cycles Twofish Assembler vs. AES Assembler (256bit 8kb block CBC) encrypt: -9% Cycles decrypt: -8% Cycles Full Output: http://homepages.tu-darmstadt.de/~fritschi/twofish/tcrypt-speed-twofish-c-x86_64.txt http://homepages.tu-darmstadt.de/~fritschi/twofish/tcrypt-speed-twofish-asm-x86_64.txt http://homepages.tu-darmstadt.de/~fritschi/twofish/tcrypt-speed-aes-asm-x86_64.txt Here is another bonnie++ benchmark with encrypted filesystems. Most runs maxed out the hd. It should give some idea what the module can do for encrypted filesystem performance even though you can't see the full numbers. http://homepages.tu-darmstadt.de/~fritschi/twofish/output_20060610_130806_x86_64.html Signed-off-by: Joachim Fritschi <jfritschi@freenet.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
1 files changed, 15 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 306738ceecb4..fa927a287a1d 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -165,6 +165,21 @@ config CRYPTO_TWOFISH_586
See also:
+config CRYPTO_TWOFISH_X86_64
+ tristate "Twofish cipher algorithm (x86_64)"
+ depends on CRYPTO && ((X86 || UML_X86) && 64BIT)
+ help
+ Twofish cipher algorithm (x86_64).
+ Twofish was submitted as an AES (Advanced Encryption Standard)
+ candidate cipher by researchers at CounterPane Systems. It is a
+ 16 round block cipher supporting key sizes of 128, 192, and 256
+ bits.
+ See also:
+ <http://www.schneier.com/twofish.html>
tristate "Serpent cipher algorithm"
depends on CRYPTO