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CCS
2005
ACM

A framework for concrete reputation-systems with applications to history-based access control

10 years 4 months ago
A framework for concrete reputation-systems with applications to history-based access control
In a reputation-based trust-management system, agents maintain information about the past behaviour of other agents. This information is used to guide future trust-based decisions about interaction. However, while trust management is a component in security decision-making, many existing reputation-based trust-management systems provide l security-guarantees. In this extended abstract, we describe a mathematical framework for a class of simple reputation-based systems. In these systems, decisions about interaction are taken based on policies that are exact requirements on agents’ past histories. We present a basic declarative language, based on pure-past linear temporal logic, intended for writing simple policies. While the basic language is reasonably expressive (encoding e.g. Chinese Wall policies) we show how one can extend it with quantification and parameterized events. This allows us to encode other policies known from the literature, e.g., ‘one-out-ofk’. The problem of c...
Karl Krukow, Mogens Nielsen, Vladimiro Sassone
Added 26 Jun 2010
Updated 26 Jun 2010
Type Conference
Year 2005
Where CCS
Authors Karl Krukow, Mogens Nielsen, Vladimiro Sassone
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