Nonmonotonic Trust Management for P2P Applications

Marcin Czenko, Ha Tran, Jeroen M. Doumen, Sandro Etalle, Pieter Hartel, Jeremy den Hartog

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    21 Citations (Scopus)
    22 Downloads (Pure)


    We show that community decisions about access control in virtual communities cannot be expressed in current trust management languages. The problem is that trust management languages such as the family of Role Based Trust Management languages (RT) are monotonic. To solve the problem we propose RT-, which adds a restricted form of negation to the standard RT language, thus admitting a controlled form of non-monotonicity. The semantics of RT- is presented in terms of the well-founded semantics for Logic Programs. An implementation of RT- is given using XSB.
    Original languageEnglish
    Title of host publication1st Int. Workshop on Security and Trust Management (STM)
    EditorsSjouke Mauw, Valérie Issarny, Cas Cremers
    Number of pages18
    Publication statusPublished - Sept 2005
    Event1st Int. Workshop on Security and Trust Management, STM 2005 -
    Duration: 15 Sept 2005 → …

    Publication series

    NameElectronic Notes in Theoretical Computer Science
    PublisherElsevier Science
    ISSN (Print)1571-0661
    ISSN (Electronic)1571-0661


    Conference1st Int. Workshop on Security and Trust Management, STM 2005
    Period15/09/05 → …


    • Peer to Peer (P2P)
    • Virtual Communities (VC)
    • Non-monotonic Policies
    • EC Grant Agreement nr.: FP6/507894
    • Distributed Trust Management (DTM)
    • Chain Discovery
    • Role Based Trust Management (RT)
    • SCS-Cybersecurity


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