Abstract
In the event of IoT (Internet of Things), use of sensor networks have blossomed over time. Wireless sensor network (WSN) is the result of the synergy between IoT and Wireless communication, bringing best of two domains together. But with this technology came the security threats which adopted itself to make wireless sensor network vulnerable. The researcher were able to come with security models which can overcome this security threats and Trust and reputation models are one such attempt. This paper summarizes most relevant Trust and Reputation models and their mechanism. Discusses the Security threats and attacks which can affect the Wireless Sensor Network. And compares Trust and Reputation models on the basis of security threats and attacks managed by them.
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