With the development of network

video has been widely used in it

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.