Fragile Watermark Based Integrality Authentication for H.264 Video Stream
Zhengyan Liu · Journal of Hunan University · 2009
In order to solve the problem of integrity authentication for low bit-rate video,a new video authentication scheme based on fragile watermark was proposed.According to public-key and secret-key,the authentication code was created from the character information of the inter frame.The authentication information was embedded into motion vector of the P frame and B frame as the watermark.The integrity authentication could be carried out by partially decoding the video stream,and did not need the original video stream for watermark detection.Experiment results have shown that the proposed approach can maintain a slight bit-rate increase and visual distortion,and can authenticate I,P and B frames effectively.