On 01/25/2010 07:29 PM, Mikulas Patocka wrote: > Hi > > When using arc4 to encrypt a block device, the resulting device is > unreliable. It reads garbage. That's because arc4 is a stream cipher, if > you write something, it advances its state and if you attempt to decrypt > the same sector, it uses new state that is different. > > This patch disables the use of arc4 on block devices. arc4 again. it is simply not a block cipher:-) This should be solved inside cryptoAPI and not blacklist it in dm-crypt, see that thread http://article.gmane.org/gmane.linux.kernel.cryptoapi/3441 Milan -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
