Reading luks DVDs using cryptsetup

[Bhasker C V <bhasker@unixindia.com>]

Hi,
 
   I have been using DVD+RW disks for storing data which are  luks
encrypted flat files.
   I have been successful in future with the below command but in the
newer version this fails with the error as pasted below. Is this a bug or
 was this deliberately introduced ? Can someone share some info on this
please ?


$ sudo cryptsetup luksOpen /dev/sr1 dsk --key-file ./key
device-mapper: reload ioctl failed: Invalid argument
$ sudo file -s /dev/sr1
/dev/sr1: sticky LUKS encrypted file, ver 1 [aes, cbc-essiv:sha256,
sha1] UUID: ...
$ cryptsetup --version
cryptsetup 1.4.1


Where /dev/sr1 is the dvd-rom drive with the disk containing the  raw
flat luks file written using growisofs


whereas in cryptsetup version 1.1.3 (old etch/squeeeze) this worked
perfectly well.

-- 
Bhasker C V
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