METHOD AND APPARATUS FOR PROVIDING SECURE INTERNET PROTOCOL MEDIA SERVICES

摘要

A method and apparatus for securely and remotely enabling the playing of a media program encrypted by a content encryption key over the Internet is disclosed. A license encryption key and a content decryption key are separately and securely transmitted to the receiver. The license encryption key is stored in the CAM and later used to decrypt the content encryption key so that the media program may be recovered.

主权项

1. A method of securely enabling the playing of a media program encrypted by a content encryption key (CEK), comprising:
receiving a license request from a receiver station in a headend, the license request generated in response to a request for a license to view the media program and comprising a receiver identifier (STB ID); determining whether the license request is authorized; if the license request is authorized, encrypting the CEK with a receiver key associated with the received STB ID to produce an encrypted content encryption key (ECEK) and generating a license comprising the encrypted content encryption key (ECEK); encrypting the license according to a license encryption key (LEK) to produce an encrypted license (ELF); and transmitting the encrypted license to the receiver station.