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Security Proofs for Participation Privacy and Stronger Verifiability for Helios

Bernhard, David and Kulyk, Oksana and Volkamer, Melanie (2016):
Security Proofs for Participation Privacy and Stronger Verifiability for Helios.
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Abstract

The Helios voting scheme is well studied including formal proofs for verifiability and ballot privacy, but it does not provide participation privacy (i.e. it reveals who participated in the election). Kulyk, Teague and Volkamer proposed an extension to Helios that is claimed to provide ballot privacy as well as participation privacy while providing stronger verifiability than Helios. However, the authors did not prove their claims. Our contribution is to provide a formal definition for participation privacy and to prove that their claims hold. 

Item Type: Other
Erschienen: 2016
Creators: Bernhard, David and Kulyk, Oksana and Volkamer, Melanie
Title: Security Proofs for Participation Privacy and Stronger Verifiability for Helios
Language: German
Abstract:

The Helios voting scheme is well studied including formal proofs for verifiability and ballot privacy, but it does not provide participation privacy (i.e. it reveals who participated in the election). Kulyk, Teague and Volkamer proposed an extension to Helios that is claimed to provide ballot privacy as well as participation privacy while providing stronger verifiability than Helios. However, the authors did not prove their claims. Our contribution is to provide a formal definition for participation privacy and to prove that their claims hold. 

Uncontrolled Keywords: Security, Usability and Society;Secure Data
Divisions: LOEWE > LOEWE-Zentren > CASED – Center for Advanced Security Research Darmstadt
20 Department of Computer Science > Theoretical Computer Science - Cryptography and Computer Algebra
20 Department of Computer Science > SECUSO - Security, Usability and Society
Profile Areas > Cybersecurity (CYSEC)
LOEWE > LOEWE-Zentren
20 Department of Computer Science
Profile Areas
LOEWE
Date Deposited: 28 Jul 2016 18:35
Identification Number: TUD-CS-2016-0093
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