Hiding Data in OFDM Symbols of IEEE 802.11 Networks

@article{Szczypiorski2010HidingDI,
  title={Hiding Data in OFDM Symbols of IEEE 802.11 Networks},
  author={Krzysztof Szczypiorski and Wojciech Mazurczyk},
  journal={2010 International Conference on Multimedia Information Networking and Security},
  year={2010},
  pages={835-840}
}
  • K. Szczypiorski, W. Mazurczyk
  • Published 2 June 2010
  • Computer Science
  • 2010 International Conference on Multimedia Information Networking and Security
This paper presents a new steganographic method called WiPad (Wireless Padding). It is based on the insertion of hidden data into the padding of frames at the physical layer of WLANs (Wireless Local Area Networks). A performance analysis based on a Markov model, previously introduced and validated by the authors in [10], is provided for the method in relation to the IEEE 802.11 a/g standards . Its results prove that maximum steganographic bandwidth for WiPad is as high as 1.1 Mbit/s for data… 

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References

SHOWING 1-10 OF 20 REFERENCES
WLAN steganography revisited
TLDR
The timing channel based approach SCII from 2006 is substituted by a completely new design based on the usage of WLAN Access Point addresses for the synchronization and payload transmission, which allows a comprehensive practical evaluation of the implementation and the evaluations of the scheme, which was not possible with the original SCII before.
A performance analysis of HICCUPS—a steganographic system for WLAN
  • K. Szczypiorski
  • Computer Science
    2009 International Conference on Multimedia Information Networking and Security
  • 2009
TLDR
The analysis relies on the original CSMA/CA 802.11 Markov chain-based model and proves that the HICCUPS is the efficient steganographic method with the reasonable cost.
HICCUPS : Hidden Communication System for Corrupted Networks
TLDR
All functional parts of the HICCUPS (HIdden Communication system for CorrUPted networkS), a steganographic system dedicated to shared medium networks including wireless local area networks, are discussed.
Information Hiding Using Improper frame padding
TLDR
Basing on real network traces, it is confirmed that PadSteg is feasible in today's networks and it is estimated what steganographic bandwidth is achievable while limiting the chance of disclosure.
Covert Channels in LAN Protocols
TLDR
There is a potential of unused bandwidth in commonly used LAN protocols, which might be exploitable as covert channel and the key point is, that exploitation of this potential is not a question of a LAN's architecture, but is strongly dependent on the design of its internal interfaces and on its implementations.
Saturation throughput analysis of error-prone 802.11 wireless networks
TLDR
This paper investigates the saturation throughput performance achieved at the MAC layer, in both congested and error prone channels, and provides a simple and accurate analytical model to calculate the MAC throughput.
WLAN steganography: a first practical review
Two different approaches for constructing a steganographic channel in an IEEE 802.11 (WLAN) network are introduced in this paper. First test results on the reliability, undetectability and capacity
Performance of reliable transport protocol over IEEE 802.11 wireless LAN: analysis and enhancement
TLDR
This paper proposes a scheme named DCF+, which is compatible with DCF, to enhance the performance of reliable transport protocol over WLAN and introduces an analytical model to compute the saturated throughput of WLAN.
Sniffing out the correct physical layer capture model in 802.11b
TLDR
It is shown empirically that in reality PLC occurs even if the stronger frame arrives later (but within the physical layer preamble of the first frame), which means throughput unfairness in reality can be significantly (up to 15%) higher than with the former PLC model.
Eliminating Steganography in Internet Traffic with Active Wardens
TLDR
This paper examines the techniques and challenges of a high-bandwidth, unattended, real-time, active warden in the context of a network firewall, and introduces the concept of Minimal Requisite Fidelity (MRF) as a measure of the degree of signal fidelity that is both acceptable to end users and destructive to covert communications.
...
...