Reference : On the verifiability of (electronic) exams
Reports : External report
Engineering, computing & technology : Computer science
On the verifiability of (electronic) exams
Dreier, Jannik [> >]
Giustolisi, Rosario [> >]
Kassem, Ali [> >]
Lafourcade, Pascal [> >]
Lenzini, Gabriele mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) >]
Technical Report TR-2014-2, Verimag
[en] Exams ; Formal Verification ; Verifiability ; Applied -Calculus ; ProVerif
[en] The main concern for institutions that organize exams is to detect when students cheat. Actually more frauds are possible and even authorities can be dishonest. If institutions wish to keep exams a trustworthy business, anyone and not only the authorities should be allowed to look into an exam’s records and verify the presence or the absence of frauds. In short, exams
should be verifiable. However, what verifiability means for exams is unclear and no tool to
analyze an exam’s verifiability is available. In this paper we address both issues: we formalize
several individual and universal verifiability properties for traditional and electronic exams,
so proposing a set of verifiability properties and clarifying their meaning, then we implement
our framework in ProVerif, so making it a tool to analyze exam verifiability. We validate our
framework by analyzing the verifiability of two existing exam systems – an electronic and a
paper-and-pencil system.

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