PTAP: Pair Key Based Trust Authentication Protocol for Authentication in Wireless Sensor Network

摘要

Conventional trust management techniques developed for wired and wireless sensor networks are not well suited for applications due to entrust of network management system and high power consumption. In the past, trust systems were used to detect intrusions in network effectively. Most of the systems are unable to detect misbehaving nodes with more complexity. In this research work, we propose a Pair Key based Trust Authentication Protocol (PTAP) for node evaluation, key generation and authentication. To achieve this, trust based routing is established based on trust threshold value of sensor nodes in random topology. This threshold value includes trust node recommendation, Reliability factor, packet forwarding and sending rate calculation. Including this, symmetric encryption and decryption method is also implemented for identifying and isolating the malicious nodes, packet integrity and node authentication in network. The encryption scheme also achieves link reliability and node stability during entire packet transmission phase. Simulation results shows that the PTAP provides better packet delivery ratio, low end to end delay, high link reliability rate, more network stability rate and less control overhead than existing schemes.