Article View: sci.crypt
Article #2935filelength permutations
From: Ray Berry
Date: Wed, 27 Jan 1993 02:59
Date: Wed, 27 Jan 1993 02:59
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It seems to me that permuting the order of characters [bytes] in an encrypted file would be valuable in hiding the structure, e.g. fixed headers, 'magic' characters, etc., which might otherwise facilitate a "chosen plain-text" decryption attack. To that end, can anyone offer guidance on efficient algorithms which can generate file-length permutations which could be seeded by a password? -- Ray Berry kb7ht ray@ole.cdac.com 73407.3152@compuserve.com /*inquire within*/
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Newsgroups: sci.crypt Path: arc1-ca.pugleaf.net!sparky!uunet!nwnexus!amc-gw!thebes!ole!ray From: ray@ole.cdac.com (Ray Berry) Subject: filelength permutations Message-ID: <1993Jan27.025903.27664@ole.cdac.com> Sender: ray@ole.cdac.com (Ray Berry) Organization: Cascade Design Automation, Bellevue, WA Date: Wed, 27 Jan 1993 02:59:03 GMT Lines: 10