Securing the OLSR protocol
نویسندگان
چکیده
In this paper, we examine security issues related to proactive routing protocols for MANETs. Specifically, we investigate security properties of the Optimized Link-State Routing Protocol one example of a proactive routing protocol for MANETs. We investigate the possible attacks against the integrity of the network routing infrastructure, and present techniques for countering a variety of such attacks. Our main approach is based on authentication checks of information injected into the network. However even with perfect authentication check, replay attacks are still possible. Hence, we develop a distributed timestamp-based approach for verifying if a message is “old” or “current”. We finally present two different, simple algorithms for distributing public keys in a MANET, in order to provide a mechanism permitting authentication checks to be conducted. While we use OLSR as an example protocol for our studies, we argue that the presented techniques apply equally to any proactive routing protocol for MANETs
منابع مشابه
A shared secret-based algorithm for securing the OLSR routing protocol
The strongest feature of ad hoc networks is its capability to be rapidly deployed anywhere and anytime without relying on a pre-existing infrastructure. From there, ad hoc networks offer the advantages to be auto-organized, ubiquitous, dynamic and completely autonomous. As a counter part, securing them becomes a more difficult task, especially because of the absence of centralized entities in t...
متن کاملSecuring the OLSR routing protocol for Ad Hoc Detecting and Avoiding Wormhole Attack
A major problem facing researchers today in the field of ad hoc networks is safety and preservation of the integrity of such networks. Among the many attacks recorded in the literature, wormhole attack remains a severe attack and not completely solved, particularly in ad hoc network configuration where OLSR is used as routing protocol. In the article we have proposed a more effective method for...
متن کاملCertification and Authentication Services for Securing MANET Routing Protocols
In this paper, we describe a new authentication service for securing mobile ad hoc network (MANET) routing protocols. A MANET authentication extension (MAE) is appended to each routing protocol message. Our design includes a self-organized certification service, adapted from [6] with the following improvements: appropriated initialization, correcting vulnerabilities in the original design; loca...
متن کاملImproving Quality of Service Routing in Mobile Ad Hoc Networks Using OLSR
Mobile ad hoc networks (MANET) are constructed by mobile nodes without access point. Since MANET has certain constraints, including power shortages, an unstable wireless environment and node mobility, more power-efficient and reliable routing protocols are needed. The OLSR protocol is an optimization of the classical link state algorithm. OLSR introduces an interesting concept, the multipoint r...
متن کاملA New Method to Reduce Energy Consumption in Manet Network Routing based on OLSR Protocol and Genetic Algorithm
Mobile Ad Hoc Networks (MANET) can be considered as a class of unstructured networks created by a number of autonomous wireless and sensor nodes. The inherent characteristics of such networks have made specific applications, such as multimedia transfer and challenging. Basically, the functionality of a node and very few resources directly affect the delivery of packets which depends on the ...
متن کاملSecure Routing Protocol: Affection on MANETs Performance
In mobile ad hoc networks, the absence ofinfrastructure and the consequent absence of authorizationfacilities impede the usual practice of establishing a practicalcriterion to distinguishing nodes as trusted and distrusted.Since all nodes in the MANETs would be used as router inmulti-hop applications, secure routing protocols have vital rulein the security of the network. So evaluating the perf...
متن کامل