US Patent 11533625 Authentication method and network device

An authentication method is disclosed, the method comprising: receiving at least one request for an action in relation to an electronic device, wherein performance of the action requires verification of an association of a group of IDs specified by the request; verifying, via cryptographic verification, whether the group of IDs specified by the request match a cryptographically attested group of IDs associated with the electronic device, to determine whether the at least one request for an action is an authentic request; and, having determined the at least one request for an action is an authentic request, approving the at least one request, wherein the group of IDs comprises at least an Integrated Circuit Card Identifier (ICC ID) of a Subscriber Identity Module (SIM) of the electronic device and a device identifier associated with the electronic device.