Application of AES in encrypting MPEG-4 video
Sha Ai-jun · Telecommunications for Electric Power System · 2006
MPEG-4 has been applied in many fields, such as wireless video monitoring and network video, because of the opening of transmitting channels, so we need the security strategy urgently to guarantee the safety of MPEG-4 video information. In this paper, we make use of MPEG-4 video compression structure, and present one encryption algorithm, which is only used to a few video data, based on AES(Advanced Encryption Standard)OFB(Output Feedback) mode in detail. Although we only encrypt small parts of the video data by the algorithm above, the MPEG-4 video information will be protected to avoid illegal acquisition. At last the encryption algorithm is introduced, the encrypting results and spending as well as its security performance and robustness against error code are given in this paper. And based on its characteristics its application strategy of encryption algorithm is also discussed.