A Survey On Cryptographically Secured Video Transmission

In the recent years, there has been a tremendous improvement and emergence of technologies for communications and digital multimedia. Such an environment has allowed for the realization of many fascinating multimedia applications. Almost instantaneous delivery of entertainment videos, pictures, and music are available to everyone who is connected to a multimedia distribution system. Hence there is a need for multimedia security for multimedia applications. We investigate the novelty of secure data for e.g. Multimedia data Transmission using cryptographic techniques. Over the last few years several encryption algorithms have applied to secure video transmission. Comparison between Symmetric and Asymmetric methods and representative video algorithms were presented. After comparison we propose encryption algorithm that is the International Data Encryption Algorithm a Symmetric Block Cipher for protection of the multimedia data. Advantages of our encryption algorithms not only lie in fast and easy implementation but also in providing considerable security. A software tool MATLAB will be used to implement algorithm for comparing video encryption methods.