Publish-Subscribe Internetworking Security Aspects

Publish-Subscribe is a paradigm that is recently receiving increasing attention by the research community, mainly due to its information oriented nature. Although the publish-subscribe paradigm yields significant security advantages over the traditional send-receive one, various security and privacy challenges are raised when it comes to the design of an internetworking architecture that is solely based on this paradigm, such as the Publish Subscribe Internet (Ψ) architecture. Ψ is the main outcome of the Publish-Subscribe Internet Routing Paradigm (PSIRP) project, which was launched with the ambition to develop and evaluate a clean-slate architecture for the future Internet based on the publish-subscribe paradigm. Availability, security, privacy and mobility support are considered as core properties for this new form of internetworking, instead of being provided as add-ons, as in the current Internet. This paper discusses the security and privacy properties of and challenges for publish-subscribe internetworking architectures and specific techniques and solutions developed in PSIRP for Ψ.