Compression performance of JPEG encryption scheme

C. Kailasanathan, R.S. Naini
2002 14th International Conference on Digital Signal Processing Proceedings. DSP 2002 (Cat. No.02TH8628)  
Recent development in the Internet and Web based technologies require faster communication of multimedia data in a secure form. A number of encryption schemes for MPEG have been proposed. In this paper, we evaluate the compression performance of JPEG which has been encrypted with the zig-zag permutation algorithm, suggest a security enhancement to the scheme, and propose an alternative to entropy coding recommended by JPEG to compensate for the compression drop occurring due to permutation.
more » ... to permutation. Disciplines Physical Sciences and Mathematics Publication Details
doi:10.1109/icdsp.2002.1028339 fatcat:t5ui7xpvsfhlzd4r7szmjj6ymm