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Article #421Re: transposition ciphers
From: Gordon Burditt
Date: Tue, 04 Aug 1992 05:36
Date: Tue, 04 Aug 1992 05:36
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Note that transposition ciphers can leak information in ways you wouldn't expect. Consider, for example, encrypted messages coming in and out of Bush campaign headquarters. Both a certain vice president worried about his job and the opposition party could deduce a lot simply from the presence or absence of the letter capital Q in the messages. With short messages (a few hundred characters) you could sometimes deduce phrases like 'health care', 'abortion', or 'gun control' that could NOT be in the message. Gordon L. Burditt sneaky.lonestar.org!gordon
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<1992Aug4.053604.3470@sneaky.lonestar.org>Path:
arc1-ca.pugleaf.net!sparky!uunet!gatech!destroyer!sol.ctr.columbia.edu!eff!news.oc.com!utacfd.uta.edu!trsvax!rwsys!sneaky!gordonReferences:
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Newsgroups: sci.crypt Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!destroyer!sol.ctr.columbia.edu!eff!news.oc.com!utacfd.uta.edu!trsvax!rwsys!sneaky!gordon From: gordon@sneaky.lonestar.org (Gordon Burditt) Subject: Re: transposition ciphers Message-ID: <1992Aug4.053604.3470@sneaky.lonestar.org> Organization: Gordon Burditt References: <92207.142318U27239@uicvm.uic.edu> Date: Tue, 4 Aug 1992 05:36:04 GMT Lines: 11