On 04/13/2011 03:21 PM, Arno Wagner wrote: > Hi, > > one thing that I immediately see is that losetup > specifies the offset in bytes, while cryptsetup uses > sectors (of 512 bytes). > > Maybe try > > cryptsetup create -c twofish -o 5 testAB /dev/sdb1 yes, and there are many more options - because the losetup exists in many versions, you need to check what exactly it uses - then just setup parameters accordingly. - note offset bytes vs sectors (see above) - sometimes you need to set not only offset but also IV offset (to the same value) - note encryption mode (probably you need "-c twofish-cbc-plain") - key size (for 128 bits use "-s 128") - hash algorithm for passphrase (perhaps ripemd160, maybe sha256) Example (I am using loop-aes patched losetup here, so it may be quite different for you): losetup-aes -e aes128 -o 2560 /dev/loop0 /dev/sdb is equivalent to cryptsetup create -o 5 --skip 5 -c aes-cbc-plain -s 128 -h sha256 <name> /dev/sdb but as I said, it depends which losetup you are using, it is quite mess sometimes:-) (and it cannot be autodetected easily...) Milan _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
