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On the design of perceptual MPEG-video encryption algorithms

Li, SJ, Chen, G, Cheung, A, Bhargava, B and Lo, K-T (2007) On the design of perceptual MPEG-video encryption algorithms IEEE Transactions on Circuits and Systems for Video Technology, 17 (2). 214 - 223. ISSN 1051-8215

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Abstract

In this paper, some existing perceptual encryption algorithms of MPEG videos are reviewed and some problems, especially security defects of two recently proposed MPEG-video perceptual encryption schemes, are pointed out. Then, a simpler and more effective design is suggested, which selectively encrypts fixed-length codewords in MPEG-video bit streams under the control of three perceptibility factors. The proposed design is actually an encryption configuration that can work with any stream cipher or block cipher. Compared with the previously-proposed schemes, the new design provides more useful features, such as strict size-preservation, on-the-fly encryption and multiple perceptibility, which make it possible to support more applications with different requirements. In addition, four different measures are suggested to provide better security against known/chosen-plaintext attacks.

Item Type: Article
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Copyright 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

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Divisions: Faculty of Engineering and Physical Sciences > Computing Science
Depositing User: Symplectic Elements
Date Deposited: 11 May 2012 13:00
Last Modified: 23 Sep 2013 19:26
URI: http://epubs.surrey.ac.uk/id/eprint/532503

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