On the Privacy of Encrypted Skype Communications

Benoit Dupasquier, Stefan Burschka, Kieran McLaughlin, Sakir Sezer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)
301 Downloads (Pure)


The privacy of voice over IP (VoIP) systems is achieved by compressing and encrypting the sampled data. This paper investigates in detail the leakage of information from Skype, a widely used VoIP application. In this research, it has been demonstrated by using the dynamic time warping (DTW) algorithm, that sentences can be identified with an accuracy of 60%. The results can be further improved by choosing specific training data. An approach involving the Kalman filter is proposed to extract the kernel of all training signals.
Original languageEnglish
Title of host publication2010 IEEE Global Telecommunications Conference (GLOBECOM 2010)
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)978-1-4244-5637-6
ISBN (Print)978-1-4244-5636-9
Publication statusPublished - Dec 2010
EventIEEE Global Telecommunications Conference (GLOBECOM) 2010 - Florida, Miami, United States
Duration: 06 Dec 2010 → …


ConferenceIEEE Global Telecommunications Conference (GLOBECOM) 2010
Country/TerritoryUnited States
Period06/12/2010 → …


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