EURASIP Journal on Information Security
Volume 2007 (2007), Article ID 52965, 15 pages
doi:10.1155/2007/52965
Research Article
Digital Video Encryption Algorithms Based on Correlation-Preserving Permutations
1Department of Computer Science and Engineering, Florida Atlantic University, Boca Raton 33431, FL, USA
2Department of Mathematical Sciences, Florida Atlantic University, Boca Raton 33431, FL, USA
Received 28 February 2007; Accepted 19 June 2007
Academic Editor: Qibin Sun
Copyright © 2007 Daniel Socek et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
A novel encryption model for digital videos is presented. The model relies on the encryption-compression duality of certain types of permutations acting on video frames. In essence, the proposed encryption process preserves the spatial correlation and, as such, can be applied prior to the compression stage of a spatial-only video encoder. Several algorithmic modes of the proposed model targeted for different application requirements are presented and analyzed in terms of security and performance. Experimental results are generated for a number of standard benchmark sequences showing that the proposed method, in addition to providing confidentiality, preserves or improves the compression ratio.