Secure Pseudonymous Access to Overlay Data Dissemination Network

New paradigms for the Internet architecture evolution towards a data dissemination-oriented have been largely proposed. Scott Shenker et al. (SIGCOMM 2007) define the basic principles desirable for a dissemination network, but they do not suggest. how to realize them. We introduce the Secure Pseudonymous Access (SPA), an access protocol suitable for every dissemination network. The main goal is to couple QoS constraints in terms of data reliability and secure access with easiness of service use, by removing most of administrative and user initialization burdens. The key issue is the user traceability, i.e. the possibility to tie together (in a provable way) the actions performed by the same user entity, along with pieces of data uploaded into the network to be shared with others. The signalling procedures of SPA are defined and the security issues are discussed; finally we describe a test bed implementation of SPA and give an estimate of procedure complexity.