JISE

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Journal of Information Science and Engineering, Vol. 18 No. 3, pp. 373-379

Broadcasting Cryptosystem in Computer Networks Using Geometric Properties of Lines

Min-Shiang Hwang, Cheng-Chi Lee^* and Ting-Yi Chang^**
Department of Information Management
Chaoyang University of Technology
Taichung Hsien, 413 Taiwan
^*Department of computer and Information Science
National Chiao Tung University
^**Department of Information and Communication Engineering
Chaoyang University of Technology
Taichun Hsien, 413 Taiwan

In 1997, Wu and Wu proposed an improvement of the Chang-Wu broadcasting cryptosystem using geometric properties of lines. The Wu-Wu scheme gave a better performance and required fewer public parameters than the Chang-Wu scheme. In this paper the authors propose an improvement to the Wu-Wu scheme using geometric properties of line. This improvement reduces the computation and significantly decreases the parameters required as compared to the Wu-Wu scheme.

Keywords: broadcasting, cryptosystem, security, geometric, secret sharing

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