Patent ID: 8417952

Claim:
A method for creating and managing a user-defined digital rights management (DRM) domain, the method being performed by an operator network node and comprising: creating an internal secret key Ks_int_kc based on a shared secret key Ks using a bootstrap procedure, said internal secret key Ks_int_kc being shared with a *SIM hosted by a *SIM device, establishing a secure channel with the *SIM device using the shared internal secret key Ks_int_kc, creating a DRM domain defined by a user of the *SIM device, receiving a registration request from the *SIM device to register the *SIM of the *SIM device into the created user-defined DRM domain, registering the *SIM of the *SIM device into the user-defined DRM domain, and making the registered information associated with the user-defined DRM domain available to the content provider such that the content provider can establish a content provider defined subdomain comprising at least the registered *SIM.