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Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US417302518 Jan 194630 Oct 1979Electrical signal scrambling apparatus
US41774862 Dec 19444 Dec 1979Facsimile device
US43705196 Dec 194925 Jan 1983General Dynamics CorporationAutokey generator for secret communication system
US609781225 Jul 19331 Aug 2000The United States of America as represented by the National Security AgencyCryptographic system
US637768729 Jul 199823 Apr 2002Lucent Technologies Inc.Methods and apparatus for enhanced CMEA employing enhanced transformations
US687674422 Jul 19985 Apr 2005Lucent Technologies Inc.Methods and apparatus for enhanced CMEA including a CMEA iteration preceded and followed by transformations and employing an involuntary lookup