Provably secure biometric based authentication and key agreement protocol for wireless sensor networks

Wireless sensor networks (WSNs) comprise of distributed sensors. The collected information available at the sensor is provided to the users who are permitted to get access. The information is transmitted in internet of things (IOT) environment, which can be eavesdrop. Thus, it is essential to ensure that only authorized shareholders can access the transmitted information. Authentication and key agreement protocols are developed to ensure confidentiality and security in IOT. We design a biometric based authentication and key agreement protocol for WSNs. To analyze the security of the proposed protocol, we use formal security proof, which shows that an attacker has a negligible probability of breaking the protocol security. We also use the BAN logic technique to show the correctness of mutual authentication. Additionally, we adopt an informal analysis to discuss the resistance of proposed scheme against various possible attacks on authentication protocols. Additionally, through the comparison of computational efficiency and security attributes with recent results, proposed protocol seems to be more appropriate for WSNs.