{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T15:37:18Z","timestamp":1781105838476,"version":"3.54.1"},"reference-count":27,"publisher":"IGI Global Scientific Publishing","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2015,1,1]]},"abstract":"<p>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.<\/p>","DOI":"10.4018\/ijmhci.2015010102","type":"journal-article","created":{"date-parts":[[2015,2,13]],"date-time":"2015-02-13T07:55:37Z","timestamp":1423814137000},"page":"25-41","source":"Crossref","is-referenced-by-count":0,"title":["Usable and Secure P2P VoIP for Mobile Use"],"prefix":"10.4018","volume":"7","author":[{"given":"Joakim","family":"Koskela","sequence":"first","affiliation":[{"name":"Helsinki Institute for Information Technology HIIT, Helsinki, Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kristiina","family":"Karvonen","sequence":"additional","affiliation":[{"name":"Helsinki Institute for Information Technology HIIT, Helsinki, Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Theofanis","family":"Kilinkaridis","sequence":"additional","affiliation":[{"name":"Helsinki Institute for Information Technology HIIT, Helsinki, Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2432","reference":[{"key":"ijmhci.2015010102-0","doi-asserted-by":"publisher","DOI":"10.1145\/336992.336995"},{"key":"ijmhci.2015010102-1","doi-asserted-by":"publisher","DOI":"10.1145\/322796.322806"},{"key":"ijmhci.2015010102-2","doi-asserted-by":"publisher","DOI":"10.1109\/MSP.2004.71"},{"key":"ijmhci.2015010102-3","doi-asserted-by":"publisher","DOI":"10.1145\/362686.362692"},{"key":"ijmhci.2015010102-4","doi-asserted-by":"publisher","DOI":"10.1145\/2377677.2377779"},{"key":"ijmhci.2015010102-5","doi-asserted-by":"publisher","DOI":"10.1145\/1143120.1143122"},{"key":"ijmhci.2015010102-6","doi-asserted-by":"crossref","unstructured":"Fessi, A., Evans, N., Niedermayer, H., & Holz, R. (2010). Pr2-P2PSIP: Privacy preserving P2P signaling for VoIP and IM. In Carle, G., Reiser, H., Camarillo, G. and Gurbani, V.K. (Eds.). Principles, Systems and Applications of IP Telecommunications (pp. 134-145). 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And Gurtov, A. (2010). Secure and usable P2P VoIP for mobile devices. In Proceedings of the 12th ACM International conference on Human computer interaction with mobile devices and services (MobileHCI), September 2010 (extended abstract).","DOI":"10.1145\/1851600.1851700"},{"key":"ijmhci.2015010102-14","article-title":"Simple Peer-to-Peer SIP Privacy.","author":"J.Koskela","year":"2009","journal-title":"First International ICST Conference on Security and Privacy in Mobile Information and Communication Systems (Mobisec\u201909)"},{"key":"ijmhci.2015010102-15","doi-asserted-by":"publisher","DOI":"10.1145\/1592761.1592773"},{"key":"ijmhci.2015010102-16","doi-asserted-by":"publisher","DOI":"10.1145\/1600176.1600178"},{"key":"ijmhci.2015010102-17","doi-asserted-by":"crossref","unstructured":"Moskowitz, R., & Nikander, P. (2006). Host Identity Protocol (HIP) Architecture. RFC 4423 (Informational), May 2006. Retrieved from http:\/\/www.ietf.org\/rfc\/rfc4423.txt November 22, 2012.","DOI":"10.17487\/rfc4423"},{"key":"ijmhci.2015010102-18","doi-asserted-by":"crossref","unstructured":"Norman, D. A. (2010). THE WAY I SEE IT: When security gets in the way. interactions, 16(6), 60-63.","DOI":"10.1145\/1620693.1620708"},{"key":"ijmhci.2015010102-19","unstructured":"O\u2019Brien, K. (2008). VOIP struggles to break into the mainstream. The New York Times, February 8, 2008. Retrieved from http:\/\/www.nytimes.com\/2008\/02\/08\/technology\/08iht-voip11.html?pagewanted=all November 22, 2012."},{"key":"ijmhci.2015010102-20","doi-asserted-by":"publisher","DOI":"10.1109\/PROC.1975.9939"},{"key":"ijmhci.2015010102-21","first-page":"13","article-title":"Usable Security. Do We Need It? How Do We Get It?","author":"M. A.Sasse","year":"2005","journal-title":"Security and Usability. 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