SkyDe: a Skype-based Steganographic Method

  • Wojciech Mazurczyk Warsaw University of Technology
  • Maciej Karaś Warsaw University of Technology
  • Krzysztof Szczypiorski Warsaw University of Technology


This paper introduces SkyDe (Skype Hide), a new steganographic method that utilizes Skype encrypted packets with silence to provide the means for clandestinecommunication. It is possible to reuse packets that do not carry voice signals for steganographic purposes because Skype does not use any silence suppression mechanism.The method’s proof-of-concept implementation and first experimental results are presented. They prove that the method is feasible and offers steganographic bandwidth as high as 2.8 kbps.


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How to Cite
MAZURCZYK, Wojciech; KARAŚ, Maciej; SZCZYPIORSKI, Krzysztof. SkyDe: a Skype-based Steganographic Method. INTERNATIONAL JOURNAL OF COMPUTERS COMMUNICATIONS & CONTROL, [S.l.], v. 8, n. 3, p. 432-443, june 2013. ISSN 1841-9844. Available at: <>. Date accessed: 19 jan. 2021. doi:


Information hiding, network steganography, Skype