Image Encryption Scheme Based on New 1D Chaotic System and Blockchain

Yongjin Xian, Ruihe Ma, Pengyu Liu, Linna Zhou

Abstract: With the increasing need for secure image transmission and storage, researchers have focused on developing advanced encryption algorithms. This article highlights the significance of a newly constructed 1D chaotic system and its application in constructing a secure image encryption algorithm over blockchain. The newly proposed 1D logistic cosine tangent chaotic system consists of the cosine function and tangent function replacing the two variables in the logistic map, respectively, thus improving the dynamics of the new 1D chaotic map. The image encryption scheme constructed based on the newly proposed 1d chaotic system relies on the privilege management function of the blockchain’s smart contract to design the key transfer scheme, which simultaneously achieves the security of the cryptographic algorithm and the reliability of the key transfer. The experimental results provide strong evidence that the proposed cryptographic system ensures robust security. This research provides a novel and effective solution for ensuring the confidentiality and integrity of encrypted images, addressing the growing concerns of image security in the digital era.