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Design of a Privacy-Preserving Document Submission and Grading System
KTH, School of Computer Science and Communication (CSC), Theoretical Computer Science, TCS.ORCID iD: 0000-0002-7102-8153
KTH, School of Computer Science and Communication (CSC), Theoretical Computer Science, TCS.ORCID iD: 0000-0003-1025-826X
KTH, School of Computer Science and Communication (CSC), Theoretical Computer Science, TCS.ORCID iD: 0000-0001-5742-5462
2015 (English)In: Secure IT Systems: 20th Nordic Conference, NordSec 2015, Stockholm, Sweden, October 19–21, 2015, Proceedings / [ed] Sonja Buchegger and Mads Dam, Springer Berlin/Heidelberg, 2015, 64-71 p.Conference paper (Refereed)
Abstract [en]

Documentsubmissionandgradingsystemsarecommonlyused in educational institutions. They facilitate the hand-in of assignments by students, the subsequent grading by the course teachers and the management of the submitted documents and corresponding grades. But they might also undermine the privacy of students, especially when documents and related data are stored long term with the risk of leaking to malicious parties in the future. We propose a protocol for a privacy- preserving, anonymous document submission and grading system based on blind signatures. Our solution guarantees the unlinkability of a document with the authoring student even after her grade has been reported, while the student can prove that she received the grade assigned to the document she submitted. We implemented a prototype of the proposed protocol to show its feasibility and evaluate its privacy and security properties. 

Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2015. 64-71 p.
, Lecture Notes in Computer Science, ISSN 0302-9743 ; 9417
National Category
Computer Systems
Research subject
Computer Science
URN: urn:nbn:se:kth:diva-179125DOI: 10.1007/978-3-319-26502-5_5ScopusID: 2-s2.0-84951870493ISBN: 978-3-319-26501-8ISBN: 978-3-319-26502-5OAI: diva2:881376
Secure IT Systems: 20th Nordic Conference,Stockholm, Sweden, October 19–21, 2015
Swedish Foundation for Strategic Research , FFL09-0086Swedish Research Council, 2009-3793

QC 20160318

Available from: 2015-12-10 Created: 2015-12-10 Last updated: 2016-03-18Bibliographically approved

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Greschbach, BenjaminRodríguez-Cano, GuillermoEricsson, TomasBuchegger, Sonja
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