Abstract:
A method for operating a Right For Contents (R4C) includes: obtaining, by a terminal, a hybrid RO generated by the RI server, with the R4C items and the operation Rights For Rights (R4Rs) carried in the hybrid RO; operating the R4C items in the hybrid RO according to the R4R. A method for adding an R4R includes: a terminal receives a hybrid RO that includes the existing rights of the terminal and the newly added R4R; the terminal operates the R4C in the hybrid RO according to the new R4R. The present invention also discloses a terminal and a server. The present invention enables the RI to control the rights at a finer granularity, intensifies the RI's control on the rights, and provides a mechanism of purchasing an R4R after an RO is purchased.
Abstract:
A method for exporting permission is provided to solves the problem that the permission can not be exported multiple times among several DRM systems in the prior art; the method includes that: determining that a license is permitted to be exported to a system that a target device belongs to; determining whether an export permission in the license is permitted to be exported; and exporting the export permission in the license to the target device if the export permission in the license is permitted to be exported, which enables the target device to export the license to another device. A terminal apparatus, a server and a communication network are also disclosed.
Abstract:
A method for obtaining DRM content packets is provided. The method enables a terminal to obtain another DCF when the terminal is unable to use a downloaded DCF. The method includes receiving the first content packet, which includes media content types and corresponding URLs, and resolving the first content packet; selecting a media content type and the corresponding URL in the first content packet; downloading the second content packet from the selected URL.
Abstract:
A method for license interaction and interaction recovery after interruption overcomes the problems of mobility loss and waste of rights of the license due to interruption of communication during the license interaction. This method includes: when a first device and a second device interact on license information, both devices record the interaction related information; after the interaction is interrupted and the connection is re-established, the first device and the second device continue the interaction when determining that the interaction is uncompleted according to the recorded information. A communication device and a digital rights management (DRM) system are also disclosed.