[dm-crypt] Encrypting with larger packet size

Arno Wagner arno at wagner.name
Tue Jan 22 06:42:23 CET 2013

Why would you want to do this? There doe snot seem to be any
good reason...


On Mon, Jan 21, 2013 at 08:18:50PM -0800, Dinesh Garg wrote:
> Hi,
> Currently dm-crypt encrypts the block device using sector size. Is it
> possible to change this to use larger sizes such as 8K or 16K or larger? If
> not possible currently, what would it take to make that possible i..e  what
> are the problems that we need to fix?
> Is it DM layer that restricts us to use larger sizes or file system due to
> its block size?
> I have one more question: How does a read operation ends up at calling
> dm-crypt api?
> Thanks,
> DG

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Arno Wagner,     Dr. sc. techn., Dipl. Inform.,    Email: arno at wagner.name
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One of the painful things about our time is that those who feel certainty
are stupid, and those with any imagination and understanding are filled
with doubt and indecision. -- Bertrand Russell

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