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Paper 2013/182

Collusion-Resistant Domain-Specific Pseudonymous Signatures

Julien Bringer and Herve Chabanne and Alain Patey

Abstract

At ISC 2012, Bender et al. introduced the notion of domain-specific 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.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Published elsewhere. NSS 2013
Keywords
group signaturespseudonymous signatureselectronic ID documents
Contact author(s)
alain patey @ telecom-paristech fr
History
2013-04-01: received
Short URL
https://ia.cr/2013/182
License
Creative Commons Attribution
CC BY
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