Article View: sci.crypt
Article #4043Re: One time pads?
From: Joseph G. Keane
Date: Tue, 23 Feb 1988 20:40
Date: Tue, 23 Feb 1988 20:40
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> How about using the message itself, in some form or another, > as the pad. > comments? Not very secure: all you have to do is guess the first character! Even if you have a reasonably large key (offset), a known-plaintext attack will get some information, and it propagates forward and backward. --Joe
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<cW8SR0y00XoCREk38I@andrew.cmu.edu>Path:
arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!mit-eddie!bbn!rochester!PT.CS.CMU.EDU!andrew.cmu.edu!jk3k+References:
<4209@june.cs.washington.edu> <1988Feb15.151522.5094@utzoo.uucp> <7272@brl-smoke.ARPA> <4104@hoptoad.uucp> <7315@brl-smoke.ARPA>, <858@astroatc.UUCP>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!mit-eddie!bbn!rochester!PT.CS.CMU.EDU!andrew.cmu.edu!jk3k+ From: jk3k+@andrew.cmu.edu (Joseph G. Keane) Newsgroups: sci.crypt Subject: Re: One time pads? Message-ID: <cW8SR0y00XoCREk38I@andrew.cmu.edu> Date: 23 Feb 88 20:40:32 GMT References: <4209@june.cs.washington.edu> <1988Feb15.151522.5094@utzoo.uucp> <7272@brl-smoke.ARPA> <4104@hoptoad.uucp> <7315@brl-smoke.ARPA>, <858@astroatc.UUCP> Organization: Carnegie Mellon University Lines: 10 In-Reply-To: <858@astroatc.UUCP>