Vote to link: Recovering from misbehaving anonymous users

Wouter Lueks, Maarten H. Everts, Jaap Henk Hoepman

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)


Service providers are often reluctant to support anonymous access, because this makes it hard to deal with misbehaving users. Anonymous blacklisting and reputation systems can help prevent misbehaving users from causing more damage. However, by the time the user is blocked or has lost reputation, most of the damage has already been done. To help the service provider to recover from abuse by malicious anonymous users, we propose the vote-to-link system. In the vote-to-link system, moderators (rather than a single trusted third party) can cast votes on a user's action if they deem it to be bad. After enough moderators have voted on the action, the service provider can use these votes to link all the actions by the same user within a limited time frame and thus recover from these actions. All the user's actions in other time frames, however, remain unlinkable. To protect the voting moderators from retaliation, we also propose a (less effcient) variant that allows moderators to vote anonymously. We implemented and evaluated both variants to show that they are practical. In particular, we believe this system is suitable to combat malicious Wikipedia editing.

Original languageEnglish
Title of host publicationWPES 2016 - Proceedings of the 2016 ACM Workshop on Privacy in the Electronic Society, co-located with CCS 2016
PublisherAssociation for Computing Machinery
Number of pages12
ISBN (Electronic)9781450345699
Publication statusPublished - 24 Oct 2016
Externally publishedYes
Event15th ACM Workshop on Privacy in the Electronic Society, WPES 2016 - Vienna, Austria
Duration: 24 Oct 201624 Oct 2016
Conference number: 15


Conference15th ACM Workshop on Privacy in the Electronic Society, WPES 2016
Abbreviated titleWPES 2016
Internet address


  • Cryptography
  • Privacy
  • Privacy-enhancing technologies


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