Rapid Identification Authentication Protocol for Mobile Nodes in Internet of Things with Privacy Protection

Mobile nodes in the Internet of things often move from one cluster to another, in which cryptography based protocols are required to provide rapid identification authentication and privacy protection. A single-step protocol was presented for the occasion that the mobile node joins a new cluster. The presented protocol contains a valid request message and an answer authentication message, which rapidly implements identification authentication and privacy protection. The protocol’s privacy protection properties were formalized in the applied pi calculus and security performance was analyzed. It is concluded that the proposed protocol can resist replay attack, eavesdropping attack, and tracking or location privacy attack. It satisfies both untraceability and forward privacy these two privacy protection properties. Compared with other single-step protocols such as basic hash protocol and OSK protocol, the proposed protocol has less communication overhead, more security and more privacy protection properties over these related protocols.