Usable and Secure P2P VoIP for Mobile Use

Joakim Koskela, Kristiina Karvonen and Theofanis Kilinkaridis
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Joakim Koskela: Helsinki Institute for Information Technology HIIT, Helsinki, Finland
Kristiina Karvonen: Helsinki Institute for Information Technology HIIT, Helsinki, Finland
Theofanis Kilinkaridis: Helsinki Institute for Information Technology HIIT, Helsinki, Finland

International Journal of Mobile Human Computer Interaction (IJMHCI), 2015, vol. 7, issue 1, 25-41

Abstract: The use of Voice over IP (VoIP) applications is relatively insecure and can involve a number of security threats and usability issues, potentially leading to loss of privacy. With the adoption of future peer-to-peer (P2P) communication systems the challenges grow even more as we need to rely on untrusted peers to access the service. The authors have developed a P2P VoIP system for mobile devices, which features techniques for improving the security and privacy of users in P2P networks. However, due to the fundamental differences in how the services are provided, the threats are not likely to be immediately understandable to the end users. Presenting these threats in an easy-to-use fashion can be quite challenging. The authors have sought to improve the usability of the emerging application by conducting iterative rounds of user interviews, questionnaires and usability testing with potential end users.

Date: 2015
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