%0 Journal Article %T MPEG Video Security using Motion Vectors and Quadtrees %A Anshul Singhal %A Manik Lal Das %J Journal of Mobile, Embedded and Distributed Systems %D 2012 %I Bucharest University of Economic Studies %X Securing multimedia data communication over public channel is a challenging task for protecting digital content from content piracy. Anti-piracy, digital watermarking and ownership verication are some mechanisms for authenticating digital content. The size of multimedia data being generally huge makes it difficult to carry out data encryption and compression for real time data communication. In this paper, we discuss the partial encryption approach in which a part of the compressed data is encrypted and rest of data remain unencrypted. The approach results in signicant reduction of computation and communication time. %K Quadtree %K Video compression %K Motion vectors %K Partial encryption %K Authentication. %U http://www.jmeds.eu/index.php/jmeds/article/view/71