Secure and Efficient Authentication Key Agreement Protocol for Wireless Sensor Networks

In order to solve the problem of communication security and privacy protection in wireless sensor networks (WSN), this paper proposes a secure and efficient authentication key agreement protocol for WSN, which is based on hash function, XOR operation and physical unclonable function(PUF), and can give attention to both efficiency and security. The protocol is suitable for multi-server scenario, and the sensor can authenticate and negotiate keys with all servers in the system after registering once. In addition, the mutual authentication stage between sensor and server does not require the participation of registry.