计算技术与自动化2024，Vol.43Issue(2)：138-144,7.DOI:10.16339/j.cnki.jsjsyzdh.202402023
抗明文攻击的动态DNA编码数字图像加密算法
Dynamic DNA-encoded Digital Image Encryption Algorithm Against Plaintext Attacks
黄湧 1雷通1
作者信息
- 1. 中国能源建设集团 广东省电力设计研究院有限公司,广东 广州 510000
- 折叠
摘要
Abstract
Aiming at the problem that traditional image encryption algorithms are susceptible to plaintext attacks,this paper proposes a digital image encryption algorithm that combines DNA dynamic coding and discrete chaotic system.Firstly,a discrete chaotic system with complex dynamics and low computational complexity is selected to provide a high-quality en-tropy source for the image cryptosystem.Next,a plaintext correlation mechanism is designed to generate chaotic encryption sequences to defend against selected plaintext attacks.Then,the chaotic sequence is used to disrupt the image bit plane and perform the operations of DNA encoding,obfuscation and decoding sequentially.Finally,bit-plane obfuscation is performed to obtain the final ciphertext.Theoretical analyses and experimental results show that the image encryption algorithm in this paper has the properties of large key space,strong correlation between adjacent pixels,and excellent statistical properties of histogram,the algorithm has the ability of robustly resisting plaintext attacks.关键词
DNA编码/图像加密/混沌系统Key words
DNA coding/image encryption/chaos system分类
计算机与自动化引用本文复制引用
黄湧,雷通..抗明文攻击的动态DNA编码数字图像加密算法[J].计算技术与自动化,2024,43(2):138-144,7.
