Embedding secret messages based on chaotic map and Huffman coding

Authors:
Kuo-Nan Chen;Chin-Feng Lee;Chin-Chen Chang
Affiliations:
National Chung Cheng University, Ming-Hsiung, Chiayi, Taiwan, R.O.C.;Chaoyang University of Technology, Taichung County, Taiwan, R.O.C.;Feng Chia University, Seatwen, Taichung, Taiwan, R.O.C.
Venue:
Proceedings of the 3rd International Conference on Ubiquitous Information Management and Communication
Year:
2009

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Abstract

In this paper, an efficient and secure data hiding scheme is proposed. The cover medium is compressed by a revised Huffman coding. Based on the lossless Huffman coding, not only images but also text files can be used as the cover media. The secret information is embedded into the compressed code by using the revised Huffman coding. Before embedding, the secret information is rearranged by a logistic map with a private key for achieving the purpose of security. The experimental results show that our proposed scheme is secure because only the receiver who owns the private key can decrypt the secert information.