Diploma Thesis DIP-2872

BibliographyAltaweel, Ala: Providing basic security mechanisms in a Publish/Subscribe system.
University of Stuttgart, Faculty of Computer Science, Electrical Engineering, and Information Technology, Diploma Thesis No. 2872 (2009).
82 pages, english.
CR-SchemaC.2.4 (Distributed Systems)

Publish-subscribe supports asynchronous interactions among processes in a distributed system. A process can describe its interest in messages by performing an operation called subscribe and will be notified about messages which match the specific interest.

Provision of basic security mechanisms such as authentication of publishers and subscribers and confidentiality of events and subscriptions is difficult in a publish-subscribe system.

Authentication is difficult to achieve due to the decoupled nature of interactions between the publishers and subscribers. Similarly confidentiality conflicts with the content based routing. Moreover, confidentiality is harder to address in broker-less environment, where the subscribers are clustered according to their interest.

In this thesis, new techniques to provide confidentiality and authentication in a brokerless content-based publish-subscribe built on P2P architecture are presented. Identity-basedencryption is used to provide authentication of publisher and subscriber and confidentiality of events. Furthermore, an algorithm is designed to cluster subscribers according to their subscriptions while preserving a weaker notion of confidentiality. Evaluation results show the feasibility of the technique in terms of dissemination latencies and message overhead.

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Department(s)University of Stuttgart, Institute of Parallel and Distributed Systems, Distributed Systems
Superviser(s)MSc. Muhammad Adnan Tariq; Rothermel, Kurt
Entry dateSeptember 9, 2009
   Publ. Department   Publ. Institute   Publ. Computer Science