Patent ID: 8805742

Claim:
A system for providing a digital rights management (DRM) license, the system comprising: a sink system which requests a license for content; a source system which generates and provides a plurality of sub-rights tokens, each of the plurality of sub-rights tokens include binding information having path information that indicates relations among a plurality of principals, in accordance with the request; and a rights mediator computer which generates a main rights token by combining the plurality of sub-rights tokens and transmits the main rights token to the sink system, wherein the sink system determines whether to access the license which is bound to the principals on the basis of the main rights token, and wherein the sink system is a system that generates a topology which gives content playback rights on the basis of the main rights token which is transmitted, and which determines whether to access the license which is bound to the principals constituting the sink system on the basis of the topology which is generated.