A method for determining whether the terminal is authorized to receive the selected service is practiced in a terminal of a conditional access system in which a user selects a service, the selected service being associated with a frequency, the terminal having a tuner and a secure element with at least...http://www.google.ca/patents/US7515712?utm_source=gb-gplus-sharePatent US7515712 - Mechanism and apparatus for encapsulation of entitlement authorization in conditional access system
