Image encryption algorithm based on integration of parallel image and hyper-chaotic system
Guo Zu-hu · Jisuanji gongcheng yu sheji · 2015
To improve the security of image encryption system,an encryption algorithm based on integration of parallel subimage and hyper-chaotic system was proposed.Firstly,the initial plaintext was separated and scrambled using Logistic map image to change the position of sub-images.And then Logistic map was used for the image row,column position was scrambled to change the position of the sub-image pixel values.Secondly,Lorenz system and Chen system were combined to diffuse each sub-image encryption to change their pixel values.Finally,all the encrypted sub-images were combined to form a complete cipher text.The simulation results show that the proposed encryption algorithm has high security,large key space,key sensitivity,and it can improve the anti-attack capability.