Authentication system for university students' portal using images

Al-Sinani, Haythem (2008) Authentication system for university students' portal using images. BSc dissertation, University of Portsmouth.

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    Nowadays, most of the authentication systems rely on a precise recall of passwords or PINs. As the number of on-line services requiring authentication continues to rise sharply, the number of passwords needed continues to also rise! The burden on users to remember such an increasing number of passwords leads to poor and predictable choices as users seek passwords that they can readily remember. This has a potential security risk that could endanger users' privacy, e.g. identity theft. For certain applications, research suggests that the use of images may be a more effective combination of both security and ease of use. This is because humans are by far better at recognising images that they have previously seen than they are at remembering passwords. In addition, it may well be possible to improve the usability of authentication systems through the use of images. In this project, an experimental authentication system, called H-IBAS-H, has been developed for use by students when authenticating to their university student portal. H-IBAS-H authenticates a student based on their ability to recognise previously seen images. Prior to presenting H-IBAS-H to users, a user questionnaire was developed. H-IBAS-H was then tested on a one-time experiment and a 4-week experiment with about 100 ECE members, staff and students, and their feedback has been collected and then analysed. One of the astonishing results of the user testing is that about 94% of the participants succeeded in authenticating with H-IBAS-H. This is despite the H-IBAS-H developer's hypothesis that only about 50% to 60% were expected to succeed. The project findings illustrate some novel theories that are of significance to the study of image-based authentication systems. An example of this is that for image-based systems, "flexibility in key generation" is significant to achieve high success in image-based authentication systems. H-IBAS-H is to be included on an open source software project.

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Technology > School of Computing
    Depositing User: Jane Polwin
    Date Deposited: 20 Jan 2011 12:48
    Last Modified: 28 Jan 2015 11:14

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