Secured Multipath Routing Protocol for Black Hole Attacks Based on Secret Sharing in MANETs

Mobile Ad Hoc Network (MANET) is a group of mobile nodes which communicates with each other without any of the supporting infrastructure. Routing in MANET is extremely challenging because of MANETs dynamic features, its limited bandwidth and power energy. Because the intrinsic characteristics of mobile ad hoc networks (MANETs) cause several vulnerabilities, anonymous routing protocols attract much more attention in secure mobile ad hoc networks for the purposes of security and privacy concerns. Most of them are single path or use one path at a time, and the multipath schemes cannot thwart both the passive attacks and active attacks simultaneously. Thus an anonymous multipath routing protocol that is a secured protocol called AOMDV, based on secret sharing is proposed. The protocol provides identity anonymity, location anonymity, data and traffic anonymity by employing cryptograph technology and secret sharing in MANET communication process. Meanwhile, a hash function is introduced to detect active attacks in the data transmission process. The protocol can effectively thwart various passive attacks and reduce the successful probability of active attacks (such as interception and physical destroy attacks). Simulation results show that the proposed scheme provides a reasonably good level of network security and performance.