Interactive Access Control and Trust Negotiation for Autonomic Communication

Interactive Access Control and Trust Negotiation for Autonomic Communication

Hristo Koshutanski (University of Trento, Italy)
Copyright: © 2007 |Pages: 29
DOI: 10.4018/978-1-59904-090-5.ch007
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Abstract

Autonomic communication and computing is the new paradigm for dynamic service integration over a network. In an autonomic network, clients may have the right credentials to access a service but may not know it; equally, it is unrealistic to assume that service providers would publish their policies on the Web so that clients could do policy evaluation themselves. To solve this problem, the chapter proposes a novel interactive access control model: Servers should be able to interact with clients asking for missing credentials, whereas clients may decide to comply or not with the requested credentials. The process iterates until a final agreement is reached or denied. Further, the chapter shows how to model a trust negotiation protocol that allows two entities in a network to automatically negotiate requirements needed to access a service. A practical implementation of the access control model is given using X.509 and SAML standards.

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