Shinren: Non-monotonic trust management for distributed systems

Changyu Dong, Naranker Dulay

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Abstract

The open and dynamic nature of modern distributed systems and pervasive environments presents significant challenges to security management. One
solution may be trust management which utilises the notion of trust in order to
specify and interpret security policies and make decisions on security-related actions. Most trust management systems assume monotonicity where additional information can only result in the increasing of trust. The monotonic assumption
oversimplifies the real world by not considering negative information, thus it cannot handle many real world scenarios. In this paper we present Shinren, a novel non-monotonic trust management system based on bilattice theory and the anyworld assumption. Shinren takes into account negative information and supports reasoning with incomplete information, uncertainty and inconsistency. Information from multiple sources such as credentials, recommendations, reputation and local knowledge can be used and combined in order to establish trust. Shinren also supports prioritisation which is important in decision making and resolving modality conflicts that are caused by non-monotonicity.
Original languageEnglish
Title of host publicationTrust Management IV
Subtitle of host publicationProceedings from the 4th IFIP WG 11.11 International Conference, IFIPTM 2010
EditorsMasakatsu Nishigaki, Audun Jøsang , Yuko Murayama, Stephen Marsh
PublisherSpringer
Pages125-140
Number of pages16
ISBN (Print)978-3-642-13445-6
DOIs
Publication statusPublished - 2010
EventIFIP WG11.11 International Conference on Trust Management -
Duration: 31 Mar 2011 → …

Other

OtherIFIP WG11.11 International Conference on Trust Management
Period31/03/11 → …

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Keywords

  • trust management
  • distributed systems
  • data encryption

Cite this

Dong, C., & Dulay, N. (2010). Shinren: Non-monotonic trust management for distributed systems. In M. Nishigaki, A. Jøsang , Y. Murayama, & S. Marsh (Eds.), Trust Management IV: Proceedings from the 4th IFIP WG 11.11 International Conference, IFIPTM 2010 (pp. 125-140). Springer. https://doi.org/10.1007/978-3-642-13446-3_9