Research On Video Encryption Technology Based On Chaos

This article mainly made three contributions to the video encryption of chaos.(1)According to the problem of high delay in encrypting video data using highdimensional chaotic systems,this paper uses four-dimensional quantum cell neural network chaotic system(QCNN)and Logistic chaotic map method to encrypt video data.With this method,it is possible to realize rapid key generation under the premise of ensuring high security of the encryption key.(2)Perform energy analysis on the key syntax elements in the video and filter out the syntax elements that have a large impact on the video quality.(3)Based on the generated chaotic key and the coding characteristics of video,a fast chaotic video encryption method was designed.At the same time,the experimental results were analyzed.The performance analysis of the proposed method showed that the encryption algorithm for 70 frames of video coding delay is less than 0.6%.Through the key space analysis,NIST SP 800-22 test,known plaintext attack and inference attack experimental analysis,it shows that the video encryption algorithm proposed in this paper has the advantages of large key space,good random key,strong attack resistance and high security.In addition,the algorithm does not change the video compression ratio,composite video encoding format specification,by quickly generating the key,only encryption the key video syntax elements,effectively reducing the H.264 video encryption delay.