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Trust-Based Usage Control in Collaborative Environment

Trust-Based Usage Control in Collaborative Environment

Li Yang, Chang Phuong, Amy Novobilski, Raimund K. Ege
Copyright: © 2008 |Volume: 2 |Issue: 2 |Pages: 15
ISSN: 1930-1650|EISSN: 1930-1669|ISSN: 1930-1650|EISBN13: 9781615203260|EISSN: 1930-1669|DOI: 10.4018/jisp.2008040103
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MLA

Yang, Li, et al. "Trust-Based Usage Control in Collaborative Environment." IJISP vol.2, no.2 2008: pp.31-45. http://doi.org/10.4018/jisp.2008040103

APA

Yang, L., Phuong, C., Novobilski, A., & Ege, R. K. (2008). Trust-Based Usage Control in Collaborative Environment. International Journal of Information Security and Privacy (IJISP), 2(2), 31-45. http://doi.org/10.4018/jisp.2008040103

Chicago

Yang, Li, et al. "Trust-Based Usage Control in Collaborative Environment," International Journal of Information Security and Privacy (IJISP) 2, no.2: 31-45. http://doi.org/10.4018/jisp.2008040103

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Abstract

Most access control models have formal access control rules to govern the authorization of a request from a principal. In pervasive and collaborative environments, the behaviors of a principal are uncertain due to partial information. Moreover, the attributes of a principal, requested objects, and contexts of a request are mutable during the collaboration. A variety of such uncertainty and mutability pose challenges when resources sharing must happen in the collaborative environment. In order to address the above challenges, we propose a framework to integrate trust management into a usage control model in order to support decision making in an ever-changing collaborative environment. First, a trust value of a principal is evaluated based on both observed behaviors and peer recommendations. Second, the usage-based access control rules are checked to make decisions on resource exchanges. Our framework handles uncertainty and mutability by dynamically disenrolling untrusted principals and revoking granted on-going access if access control rules are no longer met. We have applied our trust-based usage control framework to an application of file sharing.

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