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From: Heinz Diehl <htd@fancy-poultry.org>
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Subject: Re: [dm-crypt] "re-encrypting" ?
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On 14.08.2011, Arno Wagner wrote: 

> As a shorter key does not give significant speed
> improvement, aes256-cbc-essiv or aes256-xts is close 
> to optimal.

On my Intel Core i5 laptop, twofish is actually faster than AES..