International Journals of Advanced Information Science and Technology (IJAIST)
Disruption Tolerant Networks (DTN) differs from traditional network paradigms because of their inconsistent connectivity between nodes. Mobile nodes are often affected by malicious node during transmission. Detection of malicious node among the normal nodes is important in networks. The paper is to detect the misbehaving nodes using reputation based security scheme. The node calculates its packet dropping rate and if it is above the threshold level it is not chosen as a valid intermediate node.