linux 3.2/3.3 crypto magic: assembly optimized serpent/sha1

[Niccolò Belli <darkbasic@xxxxxxxxxxxxxxx>]

Good news if you have an ipsec tunnel or an encrypted rootfs: while 
linux-3.2 carries an SSSE3 based SHA1 implementation for x86-64 (up to 
2.3x faster), linux-3.3 will have an x86_64/SSE2 optimized Serpent 
cipher algorithm. I tried it in my laptop's encrypted rootfs 
(Serpent/SHA256) and it's 3x times faster!

http://git.kernel.org/?p=linux/kernel/git/herbert/crypto-2.6.git;a=commit;h=937c30d7f560210b0163035edd42b2aef78fed9e

http://git.kernel.org/?p=linux/kernel/git/herbert/crypto-2.6.git;a=commit;h=251496dbfc1be38bc43b49651f3d33c02faccc47

Niccolò
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