Abstract: The present invention provides a method, system, mobile terminal and RI server for withdrawing a rights object. According to the method, mobile terminal sends a request message of withdrawing the rights object to a rights issuer; after receiving the request message of withdrawing the rights object, the rights issuer authenticates the mobile terminal, makes a withdrawing result according to the request message of withdrawing the rights object and a rights issuer rule, and sends a withdrawal status report message to the mobile terminal; the mobile terminal implements a process according a instruction content and sends a status report response message to the rights issuer after receiving the withdrawal status report message; and the rights issuer implements a process according to the status report response message.

Abstract: A method for backing up and restoring a license is provided, which solves the problem of right proliferation in the prior art caused when an original license is transmitted to a user when a server restores the license. The method includes: backing up, at a server, license information of a first device, and associating the license information with a user identifier, the license information reflecting the current state information of a license when the first device reports the license information the last time; requesting, by a second device, the server to restore the license; and validating, by the server, a user identifier of the second device and the user identifier associated with the license information, and upon determination that the two user identifiers are consistent, generating a license based on the license information backed up, and transmitting the license to the second device. A terminal device, a server, and a license processing system are also provided.

Abstract: Discloses are a method for generating a rights object, and a method and apparatus for limiting a rights object. The method for generating a rights object includes: after the rights issuance system receives the rights information relative to the content object, the rights issuance system determines whether the rights object to be generated is a stateful rights object and has copy export permission according to the rights information, and performs subsequent processes for generating the rights object if it is not a stateful rights object or does not have the copy export permission. The rights issuance system further determines whether the rights information includes state limitation information for the copy export permission when the rights object to be generated is a stateful rights object and has the copy export permission. If it does, perform subsequent processes for generating the rights object. Otherwise, abandon the generation of the rights object.

Abstract: A method and a terminal device for making multi-system constraint of a specified permission in a digital rights. A rights object related to content object is obtained by an executing device. The specific permission descriptions of the rights object include system constraint descriptions of a plurality of systems of the same type. The executing device obtains a corresponding system information in the device according to the system constraint descriptions and compares the system information in the device with the system information in the system constraint descriptions, so as to judge whether there is any system permitted in system constraint descriptions. If yes, it determines to permit executing the specific permission for the content object; otherwise, it determines not to permit executing said specific permission for the content object.