A Fast Image Encryption Scheme Based on a Nonlinear Chaotic Map

摘要：

A fast image encryption scheme based on a nonlinear chaotic map is proposed in this paper. Only by XOR operation, the pixel gray values of the plain-image are modified from the first pixel to the last pixel firstly, and then the modified image is encrypted from the last pixel to the first pixel in the inverse order. Every time the chaotic map is iterated, n bytes random numbers which are used to mask the plain-image can be gained. As a result, the encryption speed of this encryption algorithm is improved effectively. 1he security of the proposed encryption scheme is analyzed in detail, and the experimental results show that the algorithm has a high security performance and a good efficiency.

关键词： Cryptography Chaotic encryption scheme Image encryption Chaotic map

作者: Shujiang Xu Yinglong Wang Jizhi Wang Yucui Guo

作者单位: Shandong Computer Science Center Jinan,China Beijing University of Posts and Telecommunications Beijing China

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 1166-1170

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）