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authorJoachim Fritschi <jfritschi@freenet.de>2006-06-20 07:12:02 -0400
committerHerbert Xu <herbert@gondor.apana.org.au>2006-09-20 21:16:29 -0400
commiteaf44088ff467410dd15a033fef118888002ffe6 (patch)
tree72b225b910342ae74e1b0915ceff61b4ead97883 /crypto/Kconfig
parentb9f535ffe38f7eb61ac2219d32d97c377b69f70d (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/Kconfig')
-rw-r--r--crypto/Kconfig15
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
165 See also: 165 See also:
166 <http://www.schneier.com/twofish.html> 166 <http://www.schneier.com/twofish.html>
167 167
168config CRYPTO_TWOFISH_X86_64
169 tristate "Twofish cipher algorithm (x86_64)"
170 depends on CRYPTO && ((X86 || UML_X86) && 64BIT)
171 select CRYPTO_TWOFISH_COMMON
172 help
173 Twofish cipher algorithm (x86_64).
174
175 Twofish was submitted as an AES (Advanced Encryption Standard)
176 candidate cipher by researchers at CounterPane Systems. It is a
177 16 round block cipher supporting key sizes of 128, 192, and 256
178 bits.
179
180 See also:
181 <http://www.schneier.com/twofish.html>
182
168config CRYPTO_SERPENT 183config CRYPTO_SERPENT
169 tristate "Serpent cipher algorithm" 184 tristate "Serpent cipher algorithm"
170 depends on CRYPTO 185 depends on CRYPTO