Re: Problem using dm-crypt with geode LX800 AES-Engine

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* Markus Huehnerbein | 2007-08-29 16:41:57 [+0200]:

>Thanks a lot! I confirm that it works with "-s 128" and also if "-s" is
>skipped! But if I try to use cryptsetup with ESSIV (cryptsetup -c
>aes-cbc-essiv:sha256 -y -s 128 luksFormat /dev/hda2) I get the same
what about sha128 instead?

>error. If the "geode-aes" does not support essiv why is this task not
>performed by another algorithm in the cryptoAPI?
Actually it is. geode does not support keys != 128 bit. ESSIV uses as
key the output of sha256 what is 256. Check dmesg please. If my theory
is correct than you should see in dmesg or somewhere:
"Failed to set key for ESSIV cipher"
Is it?

>Thanks,
>Markus

Sebastian
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