Trust enhanced distributed authorisation for web services

Aarthi Nagarajan, Vijay Varadharajan*, Nathan Tarr

*Corresponding author for this work

Research output: Contribution to journalConference paperpeer-review

3 Citations (Scopus)


In this paper, we propose a trust enhanced distributed authorisation architecture (TEDA) that provides a holistic framework for authorisation taking into account the state of a user platform. The model encompasses the notions of 'hard' and 'soft' trust to determine whether a platform can be trusted for authorisation. We first explain the rationale for the overall model and then describe our hybrid model with 'hard' and 'soft' trust components, followed by a description of the system architecture. We then illustrate our implementation of the proposed architecture in the context of authorisation for web services. We discuss the results and demonstrate that such a trust enhanced approach could enable better authorisation decision making, especially in a distributed environment where user platforms are subject to dynamic security threats.

Original languageEnglish
Pages (from-to)916-934
Number of pages19
JournalJournal of Computer and System Sciences
Issue number5
Publication statusPublished - Aug 2014
EventIEEE International Conference on Dependable, Autonomic and Secure Computing (9th : 2011) - Amsterdam, Netherlands
Duration: 12 Dec 201114 Dec 2011


  • Distributed authorisation
  • Secure web services
  • Trust enhanced security
  • Trusted platforms


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