Trustworthy Path Discovery in MANET -- A Message Oriented Cross-Correlation Approach

Communication in Mobile Ad-Hoc Network (MANET) is based on mutual trust between the participating nodes. Due to features of open medium, dynamic changing topology, lack of centralized monitoring and management, MANETs are vulnerable to various security attacks. Hence, finding a secure and trustworthy end-to-end path in MANET is a real challenge. The paper presents a solution for trustworthy path discovery in MANET that comprises of an effective reputation based trust management scheme through cross-correlation of monitored traffic and a trust based routing protocol that dynamically evaluates trustworthy path. Our analysis shows significant improvement in packet delivery ratio of AODV in the presence of attacks, with marginal rise in control traffic overhead.