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Collusion-Resistant Domain-Specific Pseudonymous Signatures
[chapter]
2013
Lecture Notes in Computer Science
At ISC 2012, Bender et al. introduced the notion of domainspecific pseudonymous signatures for ID documents. With this primitive, a user can sign with domain-specific pseudonyms, that cannot be linked across domains but that are linkable in a given domain. However, their security model assumes non-collusion of malicious users, which is a strong assumption. We therefore propose improvements to their construction. Our main contribution is a new pseudonymous signature scheme based on group signatures that is collusion-resistant.
doi:10.1007/978-3-642-38631-2_52
fatcat:jfwego3jujfinbhknjf75aowey