Dynamic block cipher algorithm base on chaos control
Peiyao Li · 2012
In order to improve the anti-attack capability of the image encryption algorithm,a new image encryption algorithm base on chaos and block cipher was presented.Firstly,a set of binary key stream was generated by four-dimensional chaotic map,original image was cut into two parts under the control of key stream;Secondly,each part of original image was input the dynamic block cipher encryption network to encrypting;Finally,cipher image was exported and input the next wheel choice encryption.The experimental analysis shows block cipher networks could be combined with chaotic encryption.The anti-attack capability and efficient computing power of the encryption algorithm was improved,small changes in original image could be diffused into more cipher text,complexity and security are improved.