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首页> 外文会议>Proceedings of the 9th international conference for young computer scientists (ICYCS 2008) >An Encryption Algorithm for 2D Engineering Graphics' Content Based on Chaos Systems
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An Encryption Algorithm for 2D Engineering Graphics' Content Based on Chaos Systems

机译：基于混沌系统的二维工程图内容加密算法

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摘要

An encryption algorithm is proposed for 2D engineering graphics' content based on Logistic mapping and Tent mapping. The vertices' coordinates are extracted from 2D engineering graphic at first, then they are confused according to the order of chaos sequences, which are generated by chaos systems. After that, the vertices' coordinates are replaced by multiplying the chaos sequences with a XOR value, which is gained by XOR the integral part of the average of the two neighboring coordinates with a key block. Simulation and analysis shows that the key space is large, and the algorithm is very sensitive to the key, original graphic and encrypted graphic. After encryption, the degree of freedom of the engineering graphic has been changed greatly, at the same time, MSE, SNR and PSNR value are also analyzed. The algorithm is a good candidate for the security of 2D engineering graphics.
机译：提出了一种基于逻辑映射和帐篷映射的二维工程图内容加密算法。首先从2D工程图形中提取顶点的坐标，然后根据由混沌系统生成的混沌序列的顺序将其混淆。之后，通过将混沌序列与XOR值相乘来替换顶点的坐标，XOR值是通过用关键块对两个相邻坐标的平均值的整数部分进行XOR运算而获得的。仿真分析表明，密钥空间较大，算法对密钥，原始图形和加密图形非常敏感。加密后，工程图的自由度发生了很大变化，同时还分析了MSE，SNR和PSNR值。该算法是2D工程图形安全性的理想选择。

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