Projekte pro Jahr
Abstract
Authentication, authorization, and trust verification are central parts of an access control system. The conditions for granting access in such a system are collected in access policies. Since access conditions are often complex, dedicated languages – policy languages – for defining policies are in use.However, current policy languages are unable to express such conditions having privacy of users in mind. With privacy-preserving technologies, users are enabled to prove information to the access system without revealing it.In this work, we present a generic design for supporting privacy-preserving technologies in policy languages. Our design prevents unnecessary disclosure of sensitive information while still allowing the formulation of expressive rules for access control. For that we make use of zero-knowledge proofs (NIZKs). We demonstrate our design by applying it to the TPL policy language, while using SNARKs. Also, we evaluate the resulting ZK-TPL language and its associated toolchain. Our evaluation shows that for regular-sized credentials communication and verification overhead is negligible
Originalsprache | englisch |
---|---|
Titel | The 21th IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom 2022) |
Herausgeber (Verlag) | IEEE Computer Soc. |
Seiten | 574-581 |
Seitenumfang | 8 |
ISBN (elektronisch) | 9781665494250 |
DOIs | |
Publikationsstatus | Veröffentlicht - März 2023 |
Veranstaltung | 21st IEEE International Conference on Trust, Security and Privacy in Computing and Communications: TrustCom 2022 - Wuhan, Hybrider Event, China Dauer: 9 Dez. 2022 → 11 Dez. 2022 http://www.ieee-hust-ncc.org/2022/TrustCom/ |
Konferenz
Konferenz | 21st IEEE International Conference on Trust, Security and Privacy in Computing and Communications |
---|---|
Kurztitel | TrustCom 2022 |
Land/Gebiet | China |
Ort | Hybrider Event |
Zeitraum | 9/12/22 → 11/12/22 |
Internetadresse |
ASJC Scopus subject areas
- Informationssysteme und -management
- Sicherheit, Risiko, Zuverlässigkeit und Qualität
- Information systems
- Gesundheitsinformatik
- Computernetzwerke und -kommunikation
Fingerprint
Untersuchen Sie die Forschungsthemen von „Extending Expressive Access Policies with Privacy Features“. Zusammen bilden sie einen einzigartigen Fingerprint.Projekte
- 1 Abgeschlossen
-
EU - KRAKEN - Vermittlungs- und Marktplattform für personenbezogene Daten
1/12/19 → 30/11/22
Projekt: Forschungsprojekt
Aktivitäten
- 1 Vortrag bei Konferenz oder Fachtagung
-
Extending Expressive Access Policies with Privacy Features
Stefan Josef More (Redner/in) & Sebastian Ramacher (Beitragende/r)
Nov. 2022Aktivität: Vortrag oder Präsentation › Vortrag bei Konferenz oder Fachtagung › Science to science