A Novel Image Encryption Scheme Based on DNA Coding and Multi-Chaotic Maps
A Novel Image Encryption Scheme Based on DNA Coding and Multi-Chaotic Maps
复制标题
一种基于DNA编码和多混沌映射的图像加密新方案
DOI：
10.1166/asl.2010.1170
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发表时间：
2010-12
影响因子：
--
通讯作者：
Wei, Xiaopeng
中科院分区：
文献类型：
--
作者：
Zhang, Qiang;Wang, Qian;Wei, Xiaopeng
提出了一种基于DNA编码和多混沌映射的图像加密方案。通过将异或、异或非、移位与生物学运算相结合，有效地提高了加密算法的安全性。本文利用两个混沌映射。一个用于控制应该操作的操作，另一个涉及计算。首先将图像的像素值转换为8位二进制数，并采用生物编码方法将其编码为“A T C G”，然后动态地将这些编码分成不同的块。混沌序列也做同样的操作。然后，我们定义了一些操作规则，可以使用显式和混沌序列之间。该加密算法能有效抵抗统计攻击和差分攻击。此外，该算法具有较大的密钥空间。数值仿真结果证明了该算法的有效性。
In this paper, a novel image encryption scheme based on DNA coding and multi-chaotic maps is proposed. By combining XOR, XNOR, bit shift with some biologic operations, the security of the encryption algorithm is enhanced effectively. Two chaotic maps are utilized in this paper. One is used to control the operations which should be operated, and the other involves in computing. Firstly, the pixel values of the plain-image converts 8 bit binary numbers, and they are encoded by biological coding as 'A T C G', these codes will be divided into different blocks dynamically. Chaotic sequences also do the same operation. Then, we define some operation rules which can be used between explicit and chaotic sequences. The encryption algorithm can resist the statistical and differential attacks effectively. Moreover, the algorithm has a large key space. The effectiveness of the proposed algorithm is proved by numerical simulations.