Date Added: Aug 2011
This paper presents a tool ProNet, that is used to obtain the network trust based on incomplete provenance. The authors consider a multihop scenario where a set of source nodes observe an event and disseminate their observations as an information item through a multihop path to the command center. Nodes are assumed to embed their provenance details on the information content. Received provenance may not be complete at the command center due to attackers dropping provenance or the unavailability of provenance. They design ProNet, a tool which is at the command center that acts on the received information item to determine the information trust, node-level trust and sequence-level trust.