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Formal Security Analysis of Traditional and Electronic Exams

  • Jannik Dreier
  • Rosario Giustolisi
  • Ali Kassem
  • Pascal Lafourcade
  • Gabriele Lenzini
  • Peter Y. A. Ryan
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 554)

Abstract

Nowadays, students can be assessed not only by means of pencil-and-paper tests, but also by electronic exams which they take in examination centers or even from home. Electronic exams are appealing as they can reach larger audiences, but they are exposed to new threats that can potentially ruin the whole exam business. These threats are amplified by two issues: the lack of understanding of what security means for electronic exams (except the old concern about students cheating), and the absence of tools to verify whether an exam process is secure. This paper addresses both issues by introducing a formal description of several fundamental authentication and privacy properties, and by establishing the first theoretical framework for an automatic analysis of exam security. It uses the applied \(\pi \)-calculus as a framework and ProVerif as a tool. Three exam protocols are checked in depth: two Internet exam protocols of recent design, and the pencil-and-paper exam used by the University of Grenoble. The analysis highlights several weaknesses. Some invalidate authentication and privacy even when all parties are honest; others show that security depends on the honesty of parties, an often unjustified assumption in modern exams.

Keywords

Electronic exams Formal verification Authentication Privacy Applied Pi-Calculus ProVerif 

Notes

Acknowledgement

We would like to thank the authors of [8] for the helpful discussions on our findings concerning their protocol.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Jannik Dreier
    • 1
  • Rosario Giustolisi
    • 2
  • Ali Kassem
    • 3
  • Pascal Lafourcade
    • 4
  • Gabriele Lenzini
    • 2
  • Peter Y. A. Ryan
    • 2
  1. 1.Institute of Information SecurityETH ZurichZürichSwitzerland
  2. 2.SnT/University of LuxembourgLuxembourg cityLuxembourg
  3. 3.CNRS, VERIMAGUniversité Grenoble AlpesGrenobleFrance
  4. 4.LIMOSUniversity d’AuvergneClermont-FerrandFrance

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