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Pseudonym Linkability

Part of the Advances in Information Security book series (ADIS, volume 35)

Section 7.3 motivates the objective of minimizing the use of a given pseudonym in order to reduce the working surface of an attacker for uncontrolled pseudonym disclosure. Moreover, the magnitude of the transitive closure of pseudonymized features that are linkable to a given pseudonym has a proportional impact, if this pseudonym is disclosed, irrespective of the fact that disclosure occurred in a controlled or in an uncontrolled way. That is, the smaller the magnitude of the transitive closure of pseudonymized features is, which are linkable to the disclosed pseudonym, the lower is the undesirable impact of its disclosure. Hence, it is desirable to reduce the linkability of pseudonymized features in audit data for misuse detection.

Keywords

Feature Type Transitive Closure Original Feature Homomorphic Encryption Audit Data 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2007

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