On 01/26/2010 09:41 AM, Bai Shuwei wrote: > Hello, everyone: > i add one line in the setkey function which is in xts.c file to > print the in_key value. I find the key value not same i set in the > keyfile by cryptsetup > > my command is > # cryptsetup luksFormat -d my_keyfile -c xts-aes-plain -s 256 /dev/loop0 -d is key file for key slot (passphrase), volume (master) key for encryption is generated using RNG during luksFormat inside cryptsetup. You can use pre-generated master key using --master-key-file in cryptsetup 1.1.x (but note it reads raw input, not hexa encoding). See man page. You do not need to modify xts.c btw, try "dmsetup table --showkeys" for active dm-crypt mappings to show used volume key. (and also better use dm-crypt@xxxxxxxx mailing list for questions related to userspace cryptsetup) Milan -- mbroz@xxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
