Technical and Socio-Technical Attacks on the Danish Party Endorsement System

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In this paper we analyze the security of the online Danish party endorsement system (DVE) and present two attacks: one technical, which we discovered during our study of the system in 2016 and which compromises the integrity of the endorsements stored in the DVE-database and another socio-technical, which allows parties to circumvent mechanisms to protect voters against abuse. To understand these attacks, we introduce the legal and technical frameworks of the DVE-system, analyze its problems, and describe a sequence of events that has led to endorsing three new parties that stood in the 2019 Danish Parliament election.
Original languageEnglish
Title of host publicationElectronic Voting
Number of pages15
Publication date24 Sept 2019
ISBN (Print)978-3-030-30625-0
Publication statusPublished - 24 Sept 2019


  • DVE system
  • Security analysis
  • Technical attacks
  • Socio-technical attacks
  • Danish election integrity


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