Invention Grant
US09014375B2 Method and apparatus for supporting multiple broadcasters independently using a single conditional access system 有权
使用单个条件访问系统独立地支持多个广播机构的方法和装置

Method and apparatus for supporting multiple broadcasters independently using a single conditional access system
Abstract:
A method and apparatus for brokering the enablement of the communication of encrypted media programs from a plurality of independent broadcasters to a plurality of receivers is disclosed. The system makes use of a pairing key for each provided service, which is differently encrypted by a pairing server and by the broadcaster providing the service. The encrypted versions of the pairing key are decrypted in a first receiver module using information known to the pairing service but not the broadcaster and in a second receiver module using information known to the broadcaster. The pairing key is used to cryptographically bind the first and second receiver modules.
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