- 期刊
Image Encryption Based on Hyperchaotic Systems And DNA Encoding
摘要
To effectively improve the quality of image encryption and the security of data transmission, this paper proposes a new image encryption theme based on Hyperchaotic systems and DNA encoding. First, L plaintext images are operated by a double-layer cross-coupled piece-wise linear chaotic map (PWLCM). And the noise-like images are obtained by XOR merging. Then, based on the chaotic sequence, the image plaintext is encoded by DNA, and the image scrambling and diffusion are realized by DNA operation, so the image encryption is completed. Finally, Simulation results show that this new encryption algorithm's number of Pixels Change Rate (NPCR) and Unified Average Change Intensity (UACI) is close to or higher than the theoretically calculated values. Furthermore, the Peak Signal Noise Ratio (PSNR) is less than 10, indicating that the proposed algorithm is susceptible to plaintext and key and can effectively resist differential attacks.
延伸閱讀
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