| 1. |
- Michalas, Antonis, et al.
(författare)
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The Lord of the Sense: A Privacy Preserving Reputation System for Participatory Sensing Applications
- 2014. - 9
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Konferensbidrag (refereegranskat)abstract
- Electronic devices we use on a daily basis collect sensitive information without preserving user's privacy. In this paper, we propose the lord of the sense (LotS), a privacy preserving reputation system for participatory sensing applications. Our system maintains the privacy and anonymity of information with the use of cryptographic techniques and combines voting approaches to support users' reputation. Furthermore, LotS maintains accountability by tracing back a misbehaving user while maintaining k-anonymity. A detailed security analysis is presented with the current advantages and disadvantages of our system.
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| 2. |
- Mitrokotsa, Aikaterini, 1978, et al.
(författare)
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Intrusion Detection and Response in Ad hoc Networks
- 2007
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Ingår i: Frontiers in Artificial Intelligence and Applications. - 0922-6389 .- 1879-8314. ; 15:1, s. 643-666
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Tidskriftsartikel (refereegranskat)abstract
- Ad hoc networks have received great attention in recent years, mainly due to their important advantages and their growing demand. Nevertheless, ad hoc networks present many inherent vulnerabilities and demand efficient security mechanisms in order to be safeguarded. An efficient intrusion detection approach combined with an authenticated intrusion response can act as an effective line of defense in ad hoc networks. In this paper, we present an intrusion detection engine based on neural networks and an authenticated intrusion response engine based on an innovative key agreement protocol. In particular, we exploit information visualization and machine learning techniques in order to achieve efficient intrusion detection and we propose an effective intrusion response engine that is based on secure communication principles in order to mitigate the impacts of possible attacks. The performance of the proposed model is evaluated under different traffic conditions and mobility patterns.
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| 3. |
- Mitrokotsa, Aikaterini, 1978, et al.
(författare)
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Protection of an Intrusion Detection Engine with Watermarking in Ad Hoc Networks
- 2010
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Ingår i: International Journal of Network Security. - 1816-3548 .- 1816-353X. ; 10:2, s. 93-106
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Tidskriftsartikel (refereegranskat)abstract
- In this paper we present an intrusion detection enginecomprised of two main elements; firstly, a neural networkfor the actual detection task and secondly watermarking techniques for protecting the related information thatmust be exchanged between nodes. In particular, we exploit information visualization and machine learning techniques in order to achieve efficient and effective intrusiondetection. In order to avoid possible modification or alteration of the maps produced by the intrusion detectionengine, we focus on safeguarding and authenticating themusing a novel embedded watermarking method. Previously, we had shown promising results in the intrusiondetection task using this system. This paper focuses onthe watermarking technique and gives a detailed exposition that includes an experimental evaluation of its quality.
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