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Báo cáo hóa học: " Research Article Joint Encryption and Compression of Correlated Sources with Side Information"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Joint Encryption and Compression of Correlated Sources with Side Information | Hindawi Publishing Corporation EURASIP Journal on Information Security Volume 2007 Article ID 98374 9 pages doi 10.1155 2007 98374 Research Article Joint Encryption and Compression of Correlated Sources with Side Information M. A. Haleem K. P Subbalakshmi and R. Chandramouli Department of Electrical and Computer Engineering Stevens Institute of Technology Hoboken NJ 07030 USA Correspondence should be addressed to M. A. Haleem mhaleem@stevens.edu Received 6 March 2007 Revised 8 July 2007 Accepted 7 November 2007 Recommended by E. Magli We propose a joint encryption and compression JEC scheme with emphasis on application to video data. The proposed JEC scheme uses the philosophy of distributed source coding with side information to reduce the complexity of the compression process and at the same time uses cryptographic principles to ensure that security is built into the scheme. The joint distributed compression and encryption is achieved using a special class of codes called high-diffusion HD codes that were proposed recently in the context of joint error correction and encryption. By using the duality between channel codes and Slepian-Wolf coding we construct a joint compression and encryption scheme that uses these codes in the diffusion layer. We adapt this cipher to MJPEG2000 with the inclusion of minimal amount of joint processing of video frames at the encoder. Copyright 2007 M. A. Haleem 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. 1. INTRODUCTION With several multimedia applications being launched over the Internet compression and encryption of this type of data have gained a lot of attention. The issue of complexity in compression is taken into consideration in the video coding standards such as MJPEG2000 1 where only the intraframe coding is performed to keep the computational .