US Patent 10152604 Enforcing locational restrictions on stateless transactions

An Attestation Identity Key pair (AIK pair) is created from a hardware identifier of a hardware machine and a geographical location. the AIK pair includes a private AIK and a public AIK. The public AIK and the geographical location are stored in a repository. the public AIK is matched with a key used to sign a data request. A geographical restriction policy corresponding to the geographical location associated with the public AIK is executed. When the geographical restriction policy determines that a type of the data request corresponds to an authorized request type from the geographical location, a service is instructed to process the data request.