and the security problem of video has been brought forward. We can solve the problem with video encryption. According to the requirement of network to video encryption
this paper proposed a new scalable encryption scheme. This paper set up a video compression system based on wavelet transform
encrypt on wavelet coefficients and motion vectors shuffling
sigh flipping in the encoder
and also compared the experimental results with other schemes. Those results show this scheme can get better encryption effect
be of less key cost and higher security. At the same time
it also has small impact on compression efficiency and compression ratio. It is a high efficiency scheme of video encryption.