Title :
Compression performance of JPEG encryption scheme
Author :
Kailasanathan, C. ; Naini, R.S.
Author_Institution :
Dept. of Comput. Sci., Wollongong Univ., NSW, Australia
Abstract :
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.
Keywords :
Huffman codes; cryptography; data compression; image coding; multimedia communication; JPEG encryption scheme; compression performance; dynamic Huffman coding; multimedia data; zig-zag permutation algorithm; Computer science; Computer security; Cryptography; Data security; Electronic mail; Entropy coding; Huffman coding; Internet; Streaming media; Transform coding;
Conference_Titel :
Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on
Print_ISBN :
0-7803-7503-3
DOI :
10.1109/ICDSP.2002.1028339
