A Performance Evaluation of Security Schemes Proposed for the OLSR Protocol

Winjum, Eli; Hegland, A; Spilling, P.; Kure, Øivind

doi:10.1109/milcom.2005.1606013

Cited by 5 publications

(6 citation statements)

References 8 publications

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“…In a practical situation it can be hard to decide which nodes are most likely to be compromised. Furthermore, in ad hoc networks, the number of messages may be more devastating than the size of the messages [64]. Hence, the actual gain of the proposed refinements is not evident.…”

Section: =S(nx)+k In Order To Extract the Key The Nodes Must Firstmentioning

confidence: 99%

A survey of key management in ad hoc networks

Hegland

Winjum

Mjølsnes

et al. 2006

IEEE Commun. Surv. Tutorials

110

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Abstract-The wireless and dynamic nature of mobile ad hoc networks (MANETs) leaves them more vulnerable to security attacks than their wired counterparts. The nodes act both as routers and communication end-points. This makes the network layer more prone to security attacks. A main challenge is to judge whether a routing message originates from a trustworthy node or not. The solution so far is cryptographically signed messages. The general assumption is that nodes are in possession of a valid secret key can be trusted. Consequently, a secure and efficient key management scheme is crucial.Keys are also required for protection of application data. However, the focus here is on network layer management information. Whereas key management schemes for the upper layers can assume an already running network service, schemes for the protection of the network layer cannot. Keys are a prerequisite to bootstrap a protected network service. This paper surveys the state of the art within key management for ad hoc networks, and analyzes their applicability for network layer security. The analysis puts some emphasis on their applicability in scenarios such as emergency and rescue operations as this work was initiated by a study of security in MANETs for emergency and rescue operations. IndexTerms-Ad hoc networks, key management, security, network layer, emergency and rescue operations.

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Section: =S(nx)+k In Order To Extract the Key The Nodes Must Firstmentioning

confidence: 99%

A survey of key management in ad hoc networks

Hegland

Winjum

Mjølsnes

et al. 2006

IEEE Commun. Surv. Tutorials

110

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“…→ T C RELAY (n1, m) (10) The relation (10) describes the message integrity property: the node ns announces a TC message m; when receiving the message m, MPR node n1 (respectively n2..., nk) makes a copy m (respectively m , ..., mk) of the message m and forwards it to the other neighbors. The content of message m must not be modified.…”

Section: T C(ns N1 M) ∧ Mp R Neighbor(ns N1)mentioning

confidence: 99%

Property Based Intrusion Detection to Secure OLSR

Cuppens

Cuppens-Boulahia

Nuon

et al. 2007

2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07)

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In this paper, we examine security issues related to proactive routing protocols for Mobile Ad-hoc NETworks (MANETs). Specifically, we investigate security properties of the Optimized Link-State Routing (OLSR) Protocol, a proactive routing protocol for MANETs. We analyze the possible attacks against the integrity of the network routing infrastructure, and present techniques to counter some attacks. Our main approach is based on a formal model to describe normal and incorrect node behaviors. This model allows us to derive security properties. The algorithm checks if these security properties are violated. If they are, detection occurs to allow the normal node to find a path without incorrect node behavior. Our approach does not change the message format, so it is very easy to implement the corresponding algorithm. While we use OLSR as an example of protocol for our studies, we argue that the presented techniques apply equally to any proactive routing protocol for MANETs.

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“…According to the specifications in [4] signatures should also be distributed in separate messages. But, in [23] it is shown that end-to-end signatures in separate messages scale badly. And backward compatibility may not be important in operational scenarios such as emergency and rescue operations where only pre-defined nodes are allowed to join.…”

Section: Olsrmentioning

confidence: 99%

“…Standard OLSR is included for reference. Topology information and calculation methods are adopted from [23], and were obtained through calculations and simulations with the ns-2 network simulator. The calculations assume IEEE 802.11b with CSMA/CS-DSSS for the lower layers, and OLSR traffic broadcast data rate of 1Mbps.…”

Section: ) Overheadmentioning

confidence: 99%

On the Distribution of Revocation Information in Ad Hoc Networks

Hegland

Spilling

Nilsen

et al. 2007

2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07)

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This paper proposes a simple, scalable and robust scheme for the distribution of revocation information in mobile ad hoc networks (MANETs); the MRL scheme. A MRL is a revocation list for a specific MANET instantiation. The scheme is designed for revocation of keys used to protect the ad hoc network service, and the MRLs are distributed with the routing messages. MRLs are established with the aid of trusted gateways reporting MANET nodes to a central trusted entity. The trusted gateways must be able to detect which nodes are in the MANET. This comes intrinsically with proactive ad hoc routing protocols, and may be achieved at some additional cost with reactive protocols. The scheme is intended for ad hoc networks with a planned origin, and where a common point of trust exists.

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A Performance Evaluation of Security Schemes Proposed for the OLSR Protocol

Cited by 5 publications

References 8 publications

A survey of key management in ad hoc networks

A survey of key management in ad hoc networks

Property Based Intrusion Detection to Secure OLSR

On the Distribution of Revocation Information in Ad Hoc Networks

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