%0 Conference Proceedings %T Decentralized Semantic Threat Graphs %+ Cork Constraint Computation Centre (4C UCC) %A Foley, Simon, N. %A Fitzgerald, William, M. %Z Part 6: Data Management %< avec comité de lecture %( Lecture Notes in Computer Science %B 26th Conference on Data and Applications Security and Privacy (DBSec) %C Paris, France %Y Nora Cuppens-Boulahia %Y Frédéric Cuppens %Y Joaquin Garcia-Alfaro %I Springer %3 Data and Applications Security and Privacy XXVI %V LNCS-7371 %P 177-192 %8 2012-07-11 %D 2012 %R 10.1007/978-3-642-31540-4_14 %K Decentralized Threat Management %K Security Configuration %Z Computer Science [cs]Conference papers %X Threat knowledge-bases such as those maintained by MITRE and NIST provide a basis with which to mitigate known threats to an enterprise. These centralised knowledge-bases assume a global and uniform level of trust for all threat and countermeasure knowledge. However, in practice these knowledge-bases are composed of threats and countermeasures that originate from a number of threat providers, for example Bugtraq. As a consequence, threat knowledge consumers may only wish to trust knowledge about threats and countermeasures that have been provided by a particular provider or set of providers. In this paper, a trust management approach is taken with respect to threat knowledge-bases. This provides a basis with which to decentralize and delegate trust for knowledge about threats and their mitigation to one or more providers. Threat knowledge-bases are encoded as Semantic Threat Graphs. An ontology-based delegation scheme is proposed to manage trust across a model of distributed Semantic Threat Graph knowledge-bases. %G English %Z TC 11 %Z WG 11.3 %2 https://inria.hal.science/hal-01534768/document %2 https://inria.hal.science/hal-01534768/file/978-3-642-31540-4_14_Chapter.pdf %L hal-01534768 %U https://inria.hal.science/hal-01534768 %~ IFIP-LNCS %~ IFIP %~ IFIP-TC %~ IFIP-WG %~ IFIP-TC11 %~ IFIP-WG11-3 %~ IFIP-DBSEC %~ IFIP-LNCS-7371