In Whom Do We Trust - Sharing Security Events

Jessica Steinberger, Benjamin Kuhnert, Anna Sperotto, Harald Baier, Aiko Pras

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

    5 Citations (Scopus)
    70 Downloads (Pure)


    Security event sharing is deemed of critical importance to counteract large-scale attacks at Internet service provider (ISP) networks as these attacks have become larger, more sophisticated and frequent. On the one hand, security event sharing is regarded to speed up organization's mitigation and response capabilities. On the other hand, it is currently done on an ad-hoc basis via email, member calls or in personal meetings only under the premise that participating partners are personally known to each other. As a consequence, mitigation and response actions are delayed and thus security events are not processed in time. One approach to reduce this delay and the time for manual processing is to disseminate security events among trusted partners. However, exchanging security events and semi-automatically deploying mitigation is currently not well established as a result of two shortcomings. First, the personal knowledge of each sharing partner to develop trust does not scale very well. Second, current exchange formats and protocols often are not able to use security mechanisms (e.g., encryption and signature) to ensure both confidentiality and integrity of the security event information and its remediation. The goal of this paper is to present a trust model that determines a trust and a knowledge level of a security event in order to deploy semi-automated remediations and facilitate the dissemination of security event information using the exchange format FLEX in the context of ISPs. We show that this trust model is scalable and helps to build a trust community in order to share information about threats and its remediation suggestions.
    Original languageEnglish
    Title of host publicationProceedings of the 10th International Conference on Autonomous Infrastructure, Management and Security (AIMS 2016)
    Place of PublicationLondon
    Number of pages14
    ISBN (Print)978-3-319-39813-6
    Publication statusPublished - 21 Jun 2016
    Event10th IFIP WG 6.6 International Conference on Management and Security in the Age of Hyperconnectivity, AIMS 2016 - Munich, Germany
    Duration: 20 Jun 201623 Jun 2016
    Conference number: 10

    Publication series

    NameLecture Notes in Computer Science
    PublisherSpringer Verlag
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349


    Conference10th IFIP WG 6.6 International Conference on Management and Security in the Age of Hyperconnectivity, AIMS 2016
    Abbreviated titleAIMS 2016


    • IR-100706
    • METIS-317208
    • EWI-27040


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