From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hubert Chan Subject: Re: The situation at hand and in the future Date: Sun, 30 May 2004 12:54:57 -0400 Sender: news Message-ID: <87ekp1luse.fsf@uhoreg.ca> References: <20040527200127.GS4990@nysv.org> <200405272105.i4RL5LDh026210@turing-police.cc.vt.edu> <40B6670D.9060408@slaphack.com> <20040528063324.GT4990@nysv.org> <40B89C9C.5050307@slaphack.com> <20040529154917.GW4990@nysv.org> <40B919DF.3040408@slaphack.com> <87k6yuzqyb.fsf@uhoreg.ca> <20040530122948.GY4990@nysv.org> Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com List-Id: Content-Type: text/plain; charset="iso-8859-1" To: reiserfs-list@namesys.com >>>>> "Markus" =3D=3D Markus T=F6rnqvist writes: Markus> On Sat, May 29, 2004 at 08:41:48PM -0400, Hubert Chan wrote: Markus> This is a lame question, but what does a known-plaintext attack Markus> imply? Markus> The cracker wants to know the plaintext passphrase instead of Markus> some random string whose hash matches the original passphrase's Markus> hash? Known plaintext mostly applies to encryption -- I don't know about any version that applies to hashes. In known plaintext, the attacker has a plaintext, and the encrypted data, and is able to retrieve the key from that. e.g. if the attacker knows the first several bytes of your file, they may be able to retrieve the key and decrypt the rest of the file. --=20 Hubert Chan - http://www.uhoreg.ca/ PGP/GnuPG key: 1024D/124B61FA Fingerprint: 96C5 012F 5F74 A5F7 1FF7 5291 AF29 C719 124B 61FA Key available at wwwkeys.pgp.net. Encrypted e-mail preferred.