What is a Conditional Access System?
A Conditional Access System (CAS) has two goals:
- Enable legitimate subscribers access to view content
- Prevent unauthorized viewers from accessing content
Conditional Access Systems work by scrambling the video signal using a set of secret keys. Those secret keys are protected using encryption.
Conditional Access Systems are used is satellite, cable, and DSL television distribution networks.
Conditional Access Systems
Conditional Access Systems include:
- DigiCipher II
- VideoCipher II RS
- Nagravision
- VideoGuard
- Irdeto
- Mediaguard
- Viaccess
- Conex
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