Microsoft Technology Licensing, LLC

Charlie David Chase, Jr

Clifford Paul Strom

Krishnamurthy Ganesan

Vijay Gajjala

Jeffrey Richard McKune

Philip J Lafornara

Sean O Lyndersay

Caglar Gunyakti

Pratul Dublish

To install a black box on a computing device, an administrator has access to the computing device and queries same for machine properties thereof. The administrator sends the machine properties of the computing device to a black box server as part of a request for a new black box for the computing device. The black box server in response constructs the new black box based in part on the machine properties so as to tie the new black box to the computing device, and delivers the new black box to the administrator. The administrator thereafter installs the new black box on the computing device. The administrator may include an activation provider running on the computing device and an activation manager in communication with the activation provider. The administrator may also deactivate the black box if it determines that the black box is no longer trustworthy.

Installation of black box for trusted component for digital rights management (DRM) on computing device

Content revocation is achieved by disabling licenses issued to a computing device for the content. A content revocation is delivered within a license to the computing device. Upon license storage the content revocation is recognized, validated, and stored in a secure state store under the public key of the content server (PU-CS) that issued the content. Each license has a (PU-CS) therein, and each license evaluation considers each content revocation stored in the state store and having the same (PU-CS). The license is disabled or otherwise affected based on the considered content revocation. A content revocation is one form of a license modification that may be delivered within a license.

Content revocation and license modification in a digital rights management (DRM) system on a computing device

Growing community of inventors

Woodinville, WA, United States of America

Charlie David Chase, Jr