| 摘要 |
A method, a system, a Rights Issuer and a user terminal are provided for restricting the users of media content. For restricting the users of media content, a DRM agent inside a user terminal obtains the copyright control information that carries the user identity of the current media content, receives a rights verification request that carries the identity of the current initiator of the current media content, and checks whether the current initiator can trigger the play of the current media content according to the user identity in the copyright control information mentioned previously and the identity of the current initiator carried in the rights verification request. If the current initiator is allowed to trigger the play of the current media content, the DRM agent provides the current decrypted media content to a media player. Otherwise, the DRM agent forbids the media player to play the current media content. The users of media content can be restricted based on the actual service requirements and thus a media content provider can better control the right to use its media content.
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