Simple fast algorithms for the editing distance between trees and related problems
SIAM Journal on Computing
Isosurface extraction in time-varying fields using a temporal branch-on-need tree (T-BON)
VIS '99 Proceedings of the conference on Visualization '99: celebrating ten years
Managing privacy preferences for federated identity management
Proceedings of the 2005 workshop on Digital identity management
User privacy-preserving identity data dependencies
Proceedings of the second ACM workshop on Digital identity management
Communications of the ACM - Organic user interfaces
User centricity: A taxonomy and open issues
Journal of Computer Security - The Second ACM Workshop on Digital Identity Management - DIM 2006
Enforcing P3P policies using a digital rights management system
PET'07 Proceedings of the 7th international conference on Privacy enhancing technologies
Traceable and automatic compliance of privacy policies in federated digital identity management
PET'06 Proceedings of the 6th international conference on Privacy Enhancing Technologies
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An emerging approach for protecting identities of individuals, while at the same time enhancing user convenience, is represented by federated identity management systems. In this paper we develop an approach to support privacy controlled sharing of identity attributes in federated environments. We present a wide range of strategies that enable users to trace their personal information across the federation and verify whether it has been managed according to their privacy preferences. Users can employ one or more of these strategies according to their goals and priorities. Additionally, we analyze the challenging issue of data, privacy policy, and preference updates in a federated system. Our algorithm allows users and federated service providers to control whether new versions of data and users' privacy references have been used, and detect possible inconsistencies.