Secure Fragmentation for Content-Centric Networks

Abstract—Content-Centric Networking (CCN) is a communication paradigm that emphasizes content distribution. NamedData Networking (NDN) is an instantiation of CCN, a candidate Future Internet Architecture. NDN supports human-readable content naming and router-based content caching which lends itself to efficient, secure, and scalable content distribution. Because of NDN’s fundamental requirement that each content object must be signed by its producer, fragmentation has been considered incompatible with NDN since it precludes authentication of individual content fragments by routers. The alternative is to perform hop-by-hop reassembly, which incurs prohibitive delays. In this paper, we show that secure and efficient content fragmentation is both possible and even advantageous in NDN and similar content-centric network architectures that involve signed content. We design a concrete technique that facilitates efficient and secure content fragmentation in NDN, discuss its security gu...

• Type: Journal
• Year: 2015
• Where: NCA
• Authors: Cesar Ghali, Ashok Narayanan, David Oran, Gene Tsudik, Christopher A. Wood
• Keywords: Computer Networks, NCA 2015