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dc.contributor Graduate Program in Computer Engineering.
dc.contributor.advisor Alagöz, Fatih.
dc.contributor.advisor Çağlayan, M. Ufuk.
dc.contributor.author Sertbaş, Nurefşan.
dc.date.accessioned 2023-03-16T10:03:03Z
dc.date.available 2023-03-16T10:03:03Z
dc.date.issued 2018.
dc.identifier.other CMPE 2018 S47
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/12354
dc.description.abstract The presence of programmable entities, namely controllers and switches, in Soft ware Defined Networks (SDNs) provides a hierarchical architecture to achieve dynamic and manageable networks for easily utilizing high bandwidth communications. How ever, such architecture may cause unsubstantiated packet dropping and incorrect packet forwarding due to the inability of current networking protocols in SDN. For instance, the detection of a compromised switch, which can be used for manipulating the data plane operation, is not possible with OpenFlow. One of the potential candidates to overcome such vulnerabilities is to use an approach to reflect subjective behaviors of entities for detecting the compromised ones. The provision of computational trust based solution for evaluating subjective behaviors is expected to help determine com promised switches. Therefore, in this thesis, we propose a Trust Enhanced Secure Routing (TESR) for switches to be used in secure routing. The proposed model pro vides three different trust computations in order to find the most suitable trust level for different states of a network. To show the applicability of the proposed approach, we demonstrate a set of simulations for the detection of compromised switches. Simula tion results show that TESR operates effectively to detect and eliminate compromised nodes while selecting secure paths.
dc.format.extent 30 cm.
dc.publisher Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018.
dc.subject.lcsh Software-defined networking (Computer network technology)
dc.title Trust enhanced secure routing in SDN
dc.format.pages xiv, 65 leaves ;


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