An Improved Chaotic Encryption Algorithm
After M.S.Baptista proposed a chaotic cryptosystem in 1998, many modified versions have been proposed. In the meantime, a number of attacks to it and its variants have been reported. Recently, some problems of the Baptista-type chaotic cryptosystems are presented in Phys. Lett.A332(2004) 368, together with a rectification of the authors own algorithm proposed in Phys. Lett. A307(2003) 22. Through studying these papers in detail, we found that the original defect of the latter is rectified, but the problems related to security and efficiency still remain unsolved. In this paper, some drawbacks of the former are pointed out. Then a modified algorithm is proposed to enhance general performance and security of the former. Numerical simulation and experiments show that the proposed algorithm works well.
Chaos Cryptosystem Modification
WEI Jun WEI Pengcheng YANG Degang MI Bo YUAN Kaibang
Zunyi Medical College Zhunyi,563000, Guizhou P.R.China Department of computer and modern education technology Chongqing Education College Chongqing, 400067 College of Mathematics and Computer Science Chongqing Normal University Department of Computer Science and Engineering Chongqing University Chongqing 400044, PR China
国际会议
厦门
英文
87-90
2006-07-27（万方平台首次上网日期，不代表论文的发表时间）