The Study on Image Encryption Algorithm for One-time Pad Based on the Coordinate Logic-XOR Filter and Key Image
Gao Yan-qin · Science Technology and Engineering · 2014
In order to make the image encryption system has the function of using only one key to synchronization encrypt multiple image and producing different cipher,to realize nondestructive encryption and achieve one time pad encryption effect,the image lossless encryption algorithm based on the coordinate logic-XOR filter and cellular automata is proposed. The image retrieval technology is introduced to this algorithm,and use the key image with the same dimensions as the plain image to combination with the significant feature of image to achieve one time pad encryption. The coordinate logic-XOR filter( CL-XOR) is introduced into the plain image to filter the pixel coordinates to get the key image,the compact XML key generation is designed according to the key image to obtain the XML key,coupling the CA time-space diagrams to construct the artificial image for getting the image descriptor; and defining the integration rule between the key image and plain image to output the initial cipher; dividing the cipher into four blocks,and again using the CL-XOR to filter the cipher blocks to produce the final cipher. The matlab simulation results show that comparing with other algorithms,the encryption quality of this algorithm is best,not containing any statistical information; and the performance of anti-known plaintext attack as well as the anti-cipher attack are excellent.