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Securing the Multipath Extension of the OLSR Routing Protocol

Existing routing protocols for self-organizing networks and their multipath extensions have a number of vulnerabilities and may be affected by malicious nodes. The paper discusses one of the vulnerabilities of the multipath extension for the OLSR routing protocol related to finding multiple routes that intersect at the malicious node. To counter this vulnerability, we proposed a special reputation-based routing metric and an algorithm for finding a given number of node-disjoint paths in non-increasing order of the metric values. The considered vulnerability and the main idea of the proposed approach are demonstrated by examples.