Patent ID: 8353055

Claim:
A method for upgrading a Rights Object (RO), comprising: receiving, by a Digital Rights Management (DRM) Agent of a terminal device, a RO Upgrade message, comprising and identifier of the RO that requires updating; instructing, by the DRM Agent, a Secure Removable Media (SRM) Agent of a SRM to set the RO that requires updating to an unavailable status; acquiring, by the DRM Agent of the terminal device and from the SRM agent, an indication that the RO that requires updating actually exists in the SRM through an existence of the identifier of the RO and a digital signature therein; providing, by the DRM Agent of the terminal device, the RO related information to a Rights Issuer (RI); obtaining, by the DRM Agent, a new RO from the RI; and interacting, by the DRM Agent of the terminal device, with the SRM Agent to upgrade the RO that requires updating on the SRM by means of the new RO to install the new RO to the SRM through the SRM Agent.