US Patent 9317688 Method and apparatus for providing machine-to-machine service

A method and an apparatus for providing service are provided. A method of providing service by a Machine-to-Machine (M2M) device includes transmitting a request for a first authentication to a Network Security Capability (NSEC), the request for the first authentication including an identifier of the M2M device, performing an Extensible Authentication Protocol (EAP) authentication with the NSEC, and generating, if the first authentication is successful, a secret key using at least one of a Master Session Key (MSK) and the identifier of the M2M device.