Article View: sci.crypt
Article #3399Re: bitwise exclusive-or
From: lazarus
Date: Tue, 10 Feb 1987 23:06
Date: Tue, 10 Feb 1987 23:06
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In article <5580@brl-smoke.ARPA> gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>) writes: >Another line of attack is to collect discarded key tapes from >the dumpster and use them to read past messages. (Would any >outfit be so stupid as to not permanently destroy the key tape? >It happens.) Yes, the United States Navy is this stupid. My understanding -- the newspapers all claimed it was 'classified' -- is that the Walker spy ring gave the Soviets the old keys. These were, of course, useless for future messages but did enable them to break recorded encrypted messages. (Apparently our forces have an electronic equivalent to many one-time-pads, and know which one to use next.) andy
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arc1-ca.pugleaf.net!utzoo!utgpu!water!watnot!watmath!clyde!rutgers!mit-eddie!genrad!decvax!ucbvax!cartan!brahms.Berkeley.EDU!lazarusReferences:
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watnot!watmath!clyde!rutgers!mit-eddie!genrad!decvax!ucbvax!cartan!brahms.Berkeley.EDU!lazarus From: lazarus@brahms.Berkeley.EDU.UUCP Newsgroups: sci.crypt Subject: Re: bitwise exclusive-or Message-ID: <924@cartan.Berkeley.EDU> Date: Tue, 10-Feb-87 18:06:37 EST Article-I.D.: cartan.924 Posted: Tue Feb 10 18:06:37 1987 Date-Received: Wed, 11-Feb-87 23:44:24 EST References: <434@ethz.UUCP> <5580@brl-smoke.ARPA> Sender: daemon@cartan.Berkeley.EDU Reply-To: lazarus@brahms.Berkeley.EDU (Andrew J Lazarus) Organization: Math Dept. UC Berkeley Lines: 16