Image Encryption and Decryption Using SCAN Methodology

Authors:
Chao-Shen Chen;Rong-Jian Chen
Affiliations:
National United University, Taiwan;Senior, Member, IEEE/ National United University, Taiwan
Venue:
PDCAT '06 Proceedings of the Seventh International Conference on Parallel and Distributed Computing, Applications and Technologies
Year:
2006

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Cryptanalysis of an image encryption scheme using cellular automata substitution and SCAN

PCM'10 Proceedings of the 11th Pacific Rim conference on Advances in multimedia information processing: Part I

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Abstract

This paper proposed an image encryption and decryption process. Its encryption method is based on SCAN patterns generated by the SCAN methodology. The SCAN is a language-based two-dimensional spatial-accessing methodology which can efficiently specify and generate a wide range of scanning paths. Then scanning paths sequence fill in original image. Note that the scanning paths with random code generating procedure, which produces the encryption keys in a very many ways; so come to the quite secret system. This paper presents a brief overview of SCAN, encryption and decryption algorithms, and test results of the methodology.