期刊名称：International Journal of Advanced Information Technology
印刷版ISSN：2231-1920
电子版ISSN：2231-1548
出版年度：2012
卷号：2
期号：5
DOI：10.5121/ijait.2012.2503
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：The main objective of this paper is to detect the existence of secret information hidden within an image.Cryptography is one of the most interesting and important area in the computer industry that deals withsecure transmission of information. Encryption, the process which helps for such secure transmission,preventshackers from accessing the information. Decryption helps to retrieve the original information.Cryptography provides many methods and techniques for secure communication. The new scheme isdesigned to be backward-compatible, that is, a file compressed with our error-resilient algorithm can bestill decompressed by the original decoder. In this paper, we deal with the popular Lempel-Ziv-Welchcompression scheme. The algorithm manipulates a 128-bit input using flipping, substitution, andpermutation to achieve its encryption/decryption
