dc.contributor.author | Ullah, Abrar | |
dc.contributor.author | Xiao, Hannan | |
dc.contributor.author | Barker, Trevor | |
dc.date.accessioned | 2018-08-16T00:17:30Z | |
dc.date.available | 2018-08-16T00:17:30Z | |
dc.date.issued | 2018-05-31 | |
dc.identifier.citation | Ullah , A , Xiao , H & Barker , T 2018 , ' A Dynamic Profile Questions Approach to Mitigate Impersonation in Online Examinations ' , Journal of Grid Computing , pp. 1-15 . https://doi.org/10.1007/s10723-018-9442-6 | |
dc.identifier.issn | 1570-7873 | |
dc.identifier.other | ORCID: /0000-0003-2273-6679/work/62749210 | |
dc.identifier.uri | http://hdl.handle.net/2299/20450 | |
dc.description | © The Author(s) 2018 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. | |
dc.description.abstract | Online examinations are an integral component of many online learning environments, which face many security challenges. Collusion is seen as a major security threat to such examinations, when a student invites a third party to impersonate or abet in a test. This work aims to strengthen the authentication of students via the use of dynamic profile questions. The study reported in this paper involved 31 online participants from five countries over a five-week period. The results of usability and security analysis are reported. The dynamic profile questions were more usable than both the text-based and image-based questions (p < 0.01). An impersonation abuse scenario was simulated using email and mobile phone. The impersonation attack via email was not successful, however, students were able to share answers to dynamic profile questions with a third party impersonator in real time, which resulted in 93% correct answers. The sharing of information via phone took place in real time during an online test and the response time of an impersonator was significantly different (p < 0.01) than a student. The study also revealed that a response time factor may be implemented to identify and report impersonation attacks. | en |
dc.format.extent | 15 | |
dc.format.extent | 936976 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of Grid Computing | |
dc.subject | Authentication | |
dc.subject | Online examinations | |
dc.subject | Security | |
dc.subject | Usability | |
dc.subject | Software | |
dc.subject | Information Systems | |
dc.subject | Hardware and Architecture | |
dc.subject | Computer Networks and Communications | |
dc.title | A Dynamic Profile Questions Approach to Mitigate Impersonation in Online Examinations | en |
dc.contributor.institution | Centre for Computer Science and Informatics Research | |
dc.contributor.institution | School of Computer Science | |
dc.description.status | Peer reviewed | |
dc.identifier.url | http://www.scopus.com/inward/record.url?scp=85047957068&partnerID=8YFLogxK | |
rioxxterms.versionofrecord | 10.1007/s10723-018-9442-6 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |