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Conditional conditional access system and conditional access restriction service
Conditional conditional access system and conditional access restriction service
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机译：条件条件访问系统和条件访问限制服务
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摘要
The present invention relates to a conditional conditional access system for providing a pay-TV service and a conditional access-restricted service processing method using the conditional access control system. The transmitting apparatus (1) stores authority information for each subscriber, And transmits a qualification control message and a qualification management message to the receiving apparatus 2 through a transmission network, generates a control word, scrambles the original broadcasting data and transmits the scrambled broadcasting data to the receiving apparatus 2 through a transmission network, 2 decrypts the received entitlement management message and the entitlement control message in the smart card 3 to perform an authentication process, descrambles the scrambled data using the control word if it is a good presser, and transmits the descrambled data to the receiving terminal 11 By providing limitations on communication and broadcasting services, it is possible to provide commercial services in the era of personalization / specialization. The subscriber is authenticated with a legitimate right since the transmission / reception apparatus scrambles and transmits broadcasting / communication data, and the keys generated in the transmitting apparatus are encrypted and transmitted to the receiving apparatus and decrypted, It is possible not only to realize the Euro broadcasting service but also to authenticate whether the subscriber is legitimate in the receiving device by using the smart card. As a result, the development of the smart card technology and the restriction of the access and the application of the smart card application technology There is an effect that introduction can be made.
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