一种新的四进制混沌序列加密算法

A New Quaternary Chaotic Sequence Encryption Algorithm

混沌序列具有对初始条件的敏感性和伪随机性,可用作高安全性的序列密码。文中提出了一种新的加密算法,包括四进制混沌序列的产生方法,伪随机性测试,及中文明文的加、解密实现。仿真结果表明,新算法具有很强的抗攻击性,而且计算量小,处理数据速度快,密钥取值范围广,具有广泛的应用前景。

The chaotic sequence is pseudo-random and sensitive on initial value. It can be used as secure sequence cipher. This paper presents a kind of new encryption algorithm based on chaotic system,including the generator and the pseudorandom capability test of the quaternary chaotic sequence. The encryption and decryption of Chinese document is realized. The simulation indicates that the encryption algorithm has the advantages of the anti-attack capability,small quantity of calculation,fast encryption and large extensive key＇s choice.