Cryptology ePrint Archive: Report 2004/011

Known-Plaintext Attack Against a Permutation Based Video

Adam J. Slagell

Abstract: One of the approaches to deliver real-time video encryption is to apply permutations to the bytes within a frame of a fully encoded MPEG stream as presented in [2]. We demonstrate that this particular algorithm is vulnerable to a known-plaintext attack, and hence its use should be carefully considered. We also discuss modifications that can make the algorithm resistant to our attack.

Category / Keywords: secret-key cryptography /

Date: received 16 Jan 2004

Contact author: slagell at ncsa uiuc edu

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Version: 20040121:223102 (All versions of this report)

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