Patent ID: 7318236
Filing Date: 2008-01-08
Classification: G06F,H04L

Abstract:
1. A digital rights management (DRM) system to allow a user to render digital content on a plurality of computing devices according to a corresponding digital license, the system comprising: a first trusted component on a first one of the computing devices for performing cryptography and DRM evaluation and enforcement for the first one of the computing devices, the first trusted component being tied to the first one of the computing devices, wherein the first trusted component has a first public key/private key pair (PU- a first user-machine certificate associated with the first one of the computing devices, the first user-machine certificate being tied to the ID of the user, whereby the first trusted component can obtain the content for rendering on the first one of the computing devices by way of the first user-machine certificate and the license, the license being tied to the content and to the user; a second trusted component on a second one of the computing devices for performing cryptography and DRM evaluation and enforcement for the second one of the computing devices, the second trusted component being tied to the second one of the computing devices, wherein the second trusted component has a second public key/private key pair (PU- a second user-machine certificate associated with the second one of the computing devices, the second user-machine certificate being tied to the ID of the user, whereby the second trusted component can obtain the content for rendering on the second one of the computing devices by way of the second user-machine certificate and said license, wherein the user has a public key/private key pair (PU-USER, PR-USER) associated therewith.