Patent ID: 9244863
Filing Date: 2016-01-26
CPC Classification: G06F

Claim Text:
1. A computing device, comprising: a processing system comprising a plurality of user sub-systems, wherein the processing system is based on a micro-kernel system, and each user sub-system is located within a respective micro-kernel user compartment; a plurality of user sub-system identifiers respectively identifying one user sub-system of the plurality of user sub-systems; a processor configured to run the processing system; a cryptography unit configured to provide at least one cryptographic mechanism; a cryptography unit secret key assigned to the cryptography unit; and a binder configured to bind the cryptography unit secret key to the user sub-system identifier of a currently running user sub-system to generate a user sub-system-specific cryptographic unit secret key, wherein when a micro-kernel user compartment instructs the cryptography unit to provide a cryptographic mechanism, the cryptographic unit is configured to during this mechanism bind the cryptography unit secret key with the user sub-system identifier of the currently running user sub-system.