On Wed, Jul 11, 2001 at 10:47:29AM +0100, Dale Amon wrote: > > On Tue, Jul 10, 2001 at 10:38:00PM +0200, peter k. wrote: > > > > 1) if an attacker has got some files which are on an (AES) > > encrypted device, will he be able to decrypt the whole device? > > It might help slightly, ie Known Plaintext Attack, but probably > not a lot. If your cipher is vulnerable to a known plaintext attack much faster than brute force, you should be using a better cipher. Such an attack would be considered by cryptographers to be a "break" of the cipher. Computatational immunity to _chosen_ plaintext attacks is a sine qua non of a good cipher. miket Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/
