An improved video encryption method design
Yuan Liang, Ke Guo, Jianping Li · 2013
In this paper, an improved video encryption method based on coupled logistic chaotic map is proposed. In it, the method adopts coupled chaotic logistic maps as the key-stream generator to encrypt the DCT (Discrete Cosine Transform) coefficients of the video frame. In the whole process, the new method can provide the pseudo-random sequence with good randomness. Therefore, these systems are suitable to the stream cipher. The method provides better security against cipher text-only attacks and known/closen-plaintext attack.