Survey of techniques used for tolerance of flooding attacks in DTN

Abstract

A delay-tolerant network is a network which is designed to operate efficiently over extreme distances such as those in space communications. In these environments, latency is the major factor affecting the quality of the network. Delay-tolerant network is the network in which neither the nodes in the network are constantly connected to each other nor any specialized network infrastructure is available for managing the network. Due to this DTNs are already facing some major challenges like communication delay, data dissemination, and routing but another major challenge is to protect the network nodes from the attackers. Existing mechanisms provide security to a good extent but they are using a complex hashing algorithm which takes a significant amount of time ultimately affecting the limited bandwidth and limited battery life of mobile nodes. In this paper, we have presented the survey of three techniques used for preventing flooding attacks along with its advantages and disadvantages.