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A Socio-cognitive Approach to Modeling Policies in Open Environments

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1 Author(s)
Ryutov, T. ; Univ. of Southern California, Los Angeles

The richness of today's electronic communications mirrors physical world: activities such as shopping, business and scientific collaboration are conducted online. Current interactions have become a form of social exchange where participants must deal with complexity, uncertainty and risk. We propose a policy specification approach that combines social sciences and trust theory to facilitate ad-hoc interactions of self-interested parties in open environments. Our socio-cognitive approach allows us to reason about uncertainty and risk involved in a transaction, and automatically calculate the minimum trust threshold needed to mitigate the vulnerabilities. The trust threshold comprises the core of security policies that govern the interactions. The threshold calculation is based on balancing objective and subjective trust components, which together predict that a transaction will result in an acceptable outcome. We propose to apply the prospect theory (D. Kahneman and A. Tversky, 1979) to specify policies that determine a set of acceptable outcomes. We present the trust threshold negotiation primitives.

Published in:

Policies for Distributed Systems and Networks, 2007. POLICY '07. Eighth IEEE International Workshop on

Date of Conference:

13-15 June 2007