Security mechanisms for IP-based broadband video data

We provide an overview of security issues important for electronic distribution of multimedia content over heterogeneous digital networks in the SAVANT (Synchronised and scalable AV content Across Networks) project. Our main goal is to describe the security problems specific for the simultaneous distribution of interrelated and synchronized multimedia content through heterogeneous broadcast and broadcast networks. Furthermore, we identify suitable solutions for the content protection in this framework and their compatibility with other important system requirements, such as service and content scalability and dynamic content presentation on client devices. After a brief description of the project and an exemplary News scenario, we analyse the scenario specific security requirements. We summarize security mechanisms suited for the implementation of the security tools in this project.