Next Article in Journal
Fault Attacks on the Authenticated Encryption Stream Cipher MORUS
Previous Article in Journal
Acknowledgement to Reviewers of Cryptography in 2017
Open AccessTechnical Note

On the Cryptographic Features of a VoIP Service

School of Pure & Applied Sciences, Open University of Cyprus, Latsia 2220, Cyprus
*
Author to whom correspondence should be addressed.
Cryptography 2018, 2(1), 3; https://doi.org/10.3390/cryptography2010003
Received: 27 November 2017 / Revised: 8 January 2018 / Accepted: 18 January 2018 / Published: 19 January 2018
Security issues of typical Voice over Internet Protocol (VoIP) applications are studied in this paper; in particular, the open source Linphone application is being used as a case study. An experimental analysis indicates that protecting signalling data with the TLS protocol, which unfortunately is not always the default option, is needed to alleviate several security concerns. Moreover, towards improving security, it is shown that a VoIP application may operate over a virtual private network without significantly degrading the overall performance. The conclusions of this study provide useful insights to the usage of any VoIP application. View Full-Text
Keywords: Linphone; SIP; TLS; VoIP; ZRTP Linphone; SIP; TLS; VoIP; ZRTP
Show Figures

Figure 1

MDPI and ACS Style

Alvanos, D.; Limniotis, K.; Stavrou, S. On the Cryptographic Features of a VoIP Service. Cryptography 2018, 2, 3.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop