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VOZŇÁK, M. ZBRANEK, I. MEHIC, M. KOMOSNÝ, D. TORAL-CRUZ, H. CHUN-WEI LIN, J.
Original Title
Covert Channel in RTP Payload Using a Pointer in SIP Header
Type
journal article in Scopus
Language
English
Original Abstract
The paper addresses the issue of hiding data in the network flow. The authors discuss a new proposal of the steganographic approach in IP telephony: transmitting texts using the pointer in the SIP header by means of a data stream within the RTP protocol. This method is based on tagging the binary sequences in payload of the RTP packets, with the individual binary sequences representing individual steganogram characters. Subsequently, the position of the binary sequences is recorded in the SIP header in the Via field and the branch parameter. The proposed way of hidden data transmission cannot be detected by existing anomaly detectors; and does not represent an approach to statistical detection of covert channels. In fact, it is a new contribution to covert communication in ordinary VoIP traffic.
Keywords
Steganography; VoIP; RTP; payload; SIP; pointer
Authors
VOZŇÁK, M.; ZBRANEK, I.; MEHIC, M.; KOMOSNÝ, D.; TORAL-CRUZ, H.; CHUN-WEI LIN, J.
Released
1. 3. 2016
Publisher
University of Zilina
ISBN
1335-4205
Periodical
Communications
Year of study
18
Number
1
State
Slovak Republic
Pages from
40
Pages to
47
Pages count
8
URL
https://komunikacie.uniza.sk/artkey/csl-201601-0007_covert-channel-in-rtp-payload-using-a-pointer-in-sip-header.php
Full text in the Digital Library
http://hdl.handle.net/11012/204431
BibTex
@article{BUT141080, author="Miroslav {Vozňák} and Ivo {Zbranek} and Miralem {Mehic} and Dan {Komosný} and Homero {Toral-Cruz} and Jerry {Chun-Wei Lin}", title="Covert Channel in RTP Payload Using a Pointer in SIP Header", journal="Communications", year="2016", volume="18", number="1", pages="40--47", doi="10.26552/com.C.2016.1.40-47", issn="1335-4205", url="https://komunikacie.uniza.sk/artkey/csl-201601-0007_covert-channel-in-rtp-payload-using-a-pointer-in-sip-header.php" }