Collusion-Resistant Domain-Specific Pseudonymous Signatures [chapter]

Julien Bringer, Hervé Chabanne, Alain Patey
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