Building a Covert Timing Channel over VoIP via Packet Length

Zhibin Zhang, Xiaosong Zhang*, Yuan Xue, Yuanzhang Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

With the rapid development of the Mobile Internet, the application of instant messaging technology has become increasingly abundant, among which Voice over Internet Protocol (VoIP) has played an important role. However, in the VoIP-based instant messaging scene, there is a risk of illegal eavesdropping by a third party. For this problem, we consider building a covert timing channel (CTC) to hide user messages and improve the security of instant messaging. At present, the existing methods of building covert timing channels (CTCs) are mainly applied to traditional Ethernet, and there is a lack of relevant methods for mobile networks, especially VoIP networks. In order to improve the transmission capacity of the CTC and improve the transmission security of user information, the research of this article focus on the method of building covert timing channel over VoIP according to the characteristics of packet length. And a prototype is established based on Linphone, which is an open-source VoIP application. Through reality transmission tests, covert messages are delivered effectively, which proves that the CTC based on packet length are feasible.

Original languageEnglish
Title of host publicationData Mining and Big Data - 6th International Conference, DMBD 2021, Proceedings
EditorsYing Tan, Yuhui Shi, Albert Zomaya, Hongyang Yan, Jun Cai
PublisherSpringer Science and Business Media Deutschland GmbH
Pages81-88
Number of pages8
ISBN (Print)9789811674754
DOIs
Publication statusPublished - 2021
Event6th International Conference on Data Mining and Big Data, DMBD 2021 - Guangzhou, China
Duration: 20 Oct 202122 Oct 2021

Publication series

NameCommunications in Computer and Information Science
Volume1453 CCIS
ISSN (Print)1865-0929
ISSN (Electronic)1865-0937

Conference

Conference6th International Conference on Data Mining and Big Data, DMBD 2021
Country/TerritoryChina
CityGuangzhou
Period20/10/2122/10/21

Keywords

  • Covert timing channel
  • Packet length
  • VoIP

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