An Enhanced Approach for Video Encryption using Multilayer and Scrambling through AES Algorithm

Due to rapid increase in the field of internet and multimedia technology the digital data transmission has increased very fast. The security of data transmission from unauthorised access proved a big issue in this regard. Several papers focused this problem and different methods are also given to protect the data from unauthorised access. As several standard symmetric encryption algorithms provide good security for the multimedia data, but these encryption algorithms for video having larger size have the delay problem of computation. Transmission of video is a very common in multimedia application and its encryption requires a complex computation. To protect the digital data during last few years, several encryption algorithms have developed to secure image or video transmission. Video encryption has application in several fields including medical systems, internet communications and military communication. The Advanced Encryption Standard (AES) algorithm can be used for video encryption and it can be modified too, to reduce the calculation of the algorithm and for improving the encryption performance. This paper presents different video encryption methods and some possible techniques to enhance the security of video data transmission.