Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site lanl.ARPA Path: utzoo!linus!decvax!genrad!mit-eddie!godot!harvard!seismo!cmcl2!lanl!jlg From: jlg@lanl.ARPA Newsgroups: net.math,net.followup,net.crypt Subject: Re: Distinguishing a Message from Random Data - Statistical approach Message-ID: <16569@lanl.ARPA> Date: Wed, 21-Nov-84 12:50:45 EST Article-I.D.: lanl.16569 Posted: Wed Nov 21 12:50:45 1984 Date-Received: Fri, 23-Nov-84 07:37:28 EST References: <166@dmcnh.UUCP> <956@cca.UUCP> Sender: newsreader@lanl.ARPA Organization: Los Alamos National Laboratory Lines: 11 > For any particular set of statistical measures, you could obviously > generate a random message that met them and would thus seem to contain a > message, even though it didn't. > For any particular set of statistical measures, you could obviously generate a real message with a pseudo-random encryption scheme which would seem not to contain a message, enen though it did. The problem here is that you must know the set of statistical measures first (or be VERY lucky).