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On Thu, 2008-02-28 at 15:19 -0500, Mansour Moufid wrote: |
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> On Thu, Feb 28, 2008 at 1:29 PM, Florian Philipp |
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> <lists@f_philipp.fastmail.net> wrote: |
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> > One last question for everyone who has read this rather long mail (thank |
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> > you, btw): What exactly is benbi in aes-lrw-benbi:sha256 and what should |
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> > I choose for XTS? The kernel description states plain but essiv and |
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> > benbi work as well. |
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> > |
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> |
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> benbi is an IV generation algorithm. If you look at the dm-crypt |
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> sources [1], benbi stands for "big-endian 'narrow block'-count" (not |
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> sure where they got the `i' from...). There's also one called bewbi, |
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> which I thought was entertaining. |
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> |
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> Sincerely, |
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> Mansour Moufid |
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> |
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> [1] http://www.cs.fsu.edu/~baker/devices/lxr/http/source/linux/drivers/md/dm-crypt.c#L110 |
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Thanks! |
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So, am I right to believe that essiv is the best choice and benbi just |
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some kind of special requirement for lrw or should I stick with what's |
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recommended (although without reasons given for xts), e.g. cbc-essiv, |
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lrw-benbi, xts-plain? |
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