Usable secure email communications: criteria and evaluation of existing approaches

Usable Secure Email Communications - Criteria and Evaluation of Existing Approaches

Email communication has been used for many years and replaces more and more traditional letters. Compared to postal service the mail service is easier, faster and free of charge. However, the standard email is from a security point of view comparable to post cards and not to letters. While end-to-end secure email communication is possible with PGP and S/MIME, only few people use it due to a lac...

Designing secure information systems and software:critical evaluation of the existing approaches and a new paradigm

This dissertation is composed of three contributions. First, it recognizes a set of key security issues for information systems (IS), and examines the extent to which these issues have been studied and resolved by existing research efforts. Second, it analyses and discusses the existing approaches for designing secure information systems (SIS), shedding light on their underlying foundations. Th...

Docignmg Secure and Usable Systems

People are the weakest link in the security chain” Bruce Schneier The aim of the thesis is to investigate the process of designing secure systems, and how designers can ensure that security mechanisms are usable and effective in practice. The research perspective is one of security as a socio-technical system. A review of the literature of security design and Human Computer Interactions in Secu...

Making Passwords Secure and Usable

To date, system research has focused on designing security mechanisms to protect systems access although their usability has rarely been investigated. This paper reports a study in which users’ perceptions of password mechanisms were investigated through questionnaires and interviews. Analysis of the questionnaires shows that many users report problems, linked to the number of passwords and fre...

Designing Secure and Usable Systems