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6th International Symposium on Human Aspects of Information Security and Assurance (HAISA 2012)
Title: Usable Secure Email Communications - Criteria and
Evaluation of Existing Approaches
Author(s): Cristian Moecke, Melanie Volkamer
Keywords: Secure email, Usable Security, Criteria
Abstract: 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 lack of awareness, low usability, and lacking an understanding
of PKIs. Recently, some new approaches for secure email communication have been proposed.
In order to enable a comparison of all these different email services we define security,
usability, and interoperability criteria and apply them to existing approaches. Based on the
result, we propose future directives for usable secure email communication.
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