Title :
Secure Lempel-Ziv-Welch (LZW) algorithm with random dictionary insertion and permutation
Author :
Zhou, Jiantao ; Au, Oscar C. ; Fan, Xiaopeng ; Wong, Peter Hon-Wah
Author_Institution :
Dept. of Electr. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong
fDate :
June 23 2008-April 26 2008
Abstract :
In this paper, we propose an efficient encryption scheme by introducing randomness into the Lempel-Ziv-Welch (LZW) algorithm. This scheme utilizes random dictionary insertion and permutation, and incorporates with a bit-wise XOR module. Security analysis results show that the proposed scheme provides high level of security without any coding efficiency loss, compared with a standard LZW algorithm.
Keywords :
cryptography; data compression; Lempel-Ziv-Welch algorithm; bit-wise XOR module; encryption scheme; random dictionary insertion; random dictionary permutation; security analysis; Algorithm design and analysis; Cryptography; Data compression; Data security; Dictionaries; Gold; Image coding; Military computing; Modems; Streaming media; LZW; compression; digital rights management; encryption;
Conference_Titel :
Multimedia and Expo, 2008 IEEE International Conference on
Conference_Location :
Hannover
Print_ISBN :
978-1-4244-2570-9
Electronic_ISBN :
978-1-4244-2571-6
DOI :
10.1109/ICME.2008.4607417
