Patent ID: 8737622

Claim:
In a requesting device, a method for requesting to import rights to a target device for the target device to use a content according to the rights, comprising: obtaining, by the requesting device, the content and rights of a first Digital Rights Management (DRM) system, and converting the content of a first DRM format into a content of a second DRM format; encapsulating key information by a public key of the target device; wherein the key information is to be used by the target device to decrypt the content, and wherein the key information is a concatenated value of a Rights Object Encryption Key (REK) and a Message Authentication Code Key (MAC KEY); generating a request message, wherein the request message comprises the key information encapsulated by the public key of the target device and the request message comprises the rights of the first DRM system; sending the request message containing the key information encapsulated by the public key of the target device and the rights of the first DRM system to a rights issuer, for requesting the rights issuer to generate and send a rights object of a second DRM system to the target device, wherein the rights object contains the encapsulated key information and the rights object contains the rights as taken from the request message, wherein the rights are provided for the target device to use the content of the second DRM format; and sending the content of the second DRM format to the target device.