Abstract
Providing methods to anonymously validate the user's identity is essential in many applications of electronic identity (eID) systems. A feasible approach to realize such a privacy-preserving eID is the usage of group signature protocols or pseudonym-based signatures. However, providing a revocation mechanism that preserves privacy is often the bottleneck for the scalability of such schemes. In order to bridge this gap between practicability and privacy, we propose a scalable and efficient revocation scheme suitable for smart cards in a mobile eID architecture. By using a pseudo-random function, we derive one-time revocation tokens for the revocation check and generate proofs of validity using a new method referred to as disposable dynamic accumulators. Our scheme thereby preserves unlinkability and anonymity of the eID holder even beyond revocation and does not require online connectivity to a trusted party for the verification and revocation check.
Originalsprache | Englisch |
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Titel | Proceedings of the 33rd Annual ACM Symposium on Applied Computing, SAC 2018 |
Herausgeber (Verlag) | ACM Press |
Seiten | 1601-1609 |
Seitenumfang | 9 |
ISBN (elektronisch) | 9781450351911 |
DOIs | |
Publikationsstatus | Veröffentlicht - 9 Apr. 2018 |
Veranstaltung | 33rd ACM Symposium on Applied Computing - Pau, Frankreich Dauer: 9 Apr. 2018 → 13 Apr. 2018 https://www.sigapp.org/sac/sac2018/ |
Publikationsreihe
Name | Proceedings of the ACM Symposium on Applied Computing |
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Workshop
Workshop | 33rd ACM Symposium on Applied Computing |
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Land/Gebiet | Frankreich |
Ort | Pau |
Zeitraum | 09.04.2018 → 13.04.2018 |
Internetadresse |
Schlagwörter
- Electronic identities
- privacy-preserving revocation
- scalability
- dynamic accumulators
- smart cards