Research on color image encryption scheme based on high-dimensional chaotic system and DNA computing
Xiaohang Wang, Yujie Zhang · 2023
There are various methods of image encryption techniques, including key-based encryption, chaos theory-based encryption, wavelet transform-based encryption, etc. Although low-dimensional chaotic systems are fast, the key space is small and the security is not high. High-dimensional chaotic systems have large key space and high security, which are difficult for attackers to break, but the encryption speed is not good. In order to solve the problem of encryption efficiency of high-dimensional chaotic systems, this paper introduces a chaotic state selection system to dynamically select the state variables so as to reduce the number of iterations in the generation of the secret key, which further improves the security of the algorithm while increasing the encryption speed, making the algorithm fast and in line with the practical application scenarios.