Conditional Access System Seminar report


Date: 21 Feb 2016






In this Seminar Report paper, we reviewed the Conditional Access System Seminar Report. A conditional access (CA) system comprises a combination of scrambling and encryption to prevent unauthorized reception. Scrambling is the process of rendering the sound, pictures and data unintelligible. Encryption meant for protecting the secret keys that have to be transmitted with the scrambled signal in order for the descrambler to work. After descrambling, any defects on the sound and pictures should be imperceptible, i.e. the CA system should be transparent. The primary purpose of a CA system for broadcasting is to determine which individual receivers/ set-top decoders shall be able to deliver particular program services, or individual programs to the viewers. By using this reference model, Members will be able to evaluate the different conditional access systems that available now. The model is not intended as a specification for a particular system. Rather, it provides a framework for defining the terms and operating principles of conditional access systems and it illustrates some of the conflicts and trade-offs that occur when designing such systems.






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