Re: "Cipher or key length not supported" under loop-aes 3.0

[Chris Schadl <cschadl@xxxxxxxxxxxx>]

Ah, yeah.  About 5 minutes after I posted this I discovered that a seperate
module 'cryptoloop' is created.  Once I loaded that, everything worked fine.

Max Vozeler [31/01/06 20:32 +0100]:
> Hi Chris,
> 
> On Tue, Jan 31, 2006 at 12:42:37PM -0600, Chris Schadl wrote:
> > I've successfully compiled the modules and installed
> > the loop-aes-utils package, but when I try to mount the data I
> > get the following error:
> >
> > # mount -o loop,encryption=aes192 /dev/hdb /media/cdrom
> > Password:
> > ioctl: LOOP_SET_STATUS: Invalid argument, requested cipher or key length (192 bits) not supported by kernel
> 
> This suggests that you have the kernel loop module loaded instead
> of the loop-AES version. Did you try to unload the loop module in
> case the kernel version was already loaded before you installed
> loop-AES?  ("rmmod loop; modprobe loop")
> 
> What does the output of "lsmod | grep loop" show? 
> 
> > The weird thing is that according to /proc/crypto, the maximum AES keysisize
> > is 32 bits...
> 
> The value should be in bytes, no need to worry ;) /proc/crypto also
> lists the in-kernel cryptoapi ciphers, which loop-AES doesn't use.
> It provides and uses it's own implementation of the AES cipher.
> 
> cheers,
> Max
> 
> -
> Linux-crypto:  cryptography in and on the Linux system
> Archive:       http://mail.nl.linux.org/linux-crypto/

-- 
Chris Schadl
cschadl@xxxxxxxxxxxx

-
Linux-crypto:  cryptography in and on the Linux system
Archive:       http://mail.nl.linux.org/linux-crypto/