Identity management and its support of multilateral security
Computer Networks: The International Journal of Computer and Telecommunications Networking
Formal Concept Analysis: Mathematical Foundations
Formal Concept Analysis: Mathematical Foundations
ESORICS '96 Proceedings of the 4th European Symposium on Research in Computer Security: Computer Security
k-anonymity: a model for protecting privacy
International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems
Formal concept analysis in information science
Annual Review of Information Science and Technology
IT-security and privacy: design and use of privacy-enhancing security mechanisms
IT-security and privacy: design and use of privacy-enhancing security mechanisms
PET'02 Proceedings of the 2nd international conference on Privacy enhancing technologies
Privilege federation between different user profiles for service federation
Proceedings of the 4th ACM workshop on Digital identity management
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In this paper, we examine how conclusions about linkability threats can be drawn by analyzing message contents and subject knowledge in arbitrary communication systems. At first, we define messages described by their contents as formal contexts. Then, we define subjects described by their knowledge as further formal contexts. Finally, we show that concept lattices, which are achieved by applying Formal Concept Analysis to the concatenation of these formal contexts, can be used in order to draw conclusions about correlations, and therefore linkability, between contents of messages and knowledge of subjects. The goal is to define formal specifications which can be utilized in privacy enhancing identity management systems in order to support users in the choice of data items which are to be disclosed to a communication partner.