Password based Secure Authentication Methodology for Wireless Sensor Network

Wireless Sensor Network (WSN) is a promising solution for next generation real-time monitoring applications due to its ubiquitous nature, ease of deployment and wide range of applications. The main requirements of a secure WSN architecture are confidentiality, integrity and authentication. User Authentication for wireless sensor networks is a fundamental issue in designing secure WSN systems, where legitimate users are allowed to login and access data from the sensor and gateway nodes. A large number of dynamic strong password and two-factor authentication solutions have been proposed. However, all of these protocols rely on network synchronization and suffer from replay and many logged in users with same login ID threats. We present a secure authentication protocol that avoids replay and multiple login attacks. Our scheme eliminates the need for network synchronization. The scheme is analysed and evaluated for various attacks using SystemC and it provides enhanced security for no extra computing at sensor nodes.