arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1006.0495cs.CR
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在IEEE 802.11网络的OFDM符号中隐藏数据

Hiding Data in OFDM Symbols of IEEE 802.11 Networks

Krzysztof Szczypiorski, Wojciech Mazurczyk

摘要:

本文提出了一种新的隐写方法--无线填充法。它基于在WLAN(无线局域网)的物理层将隐藏数据插入到帧的填充中。基于马尔可夫模型的性能分析,先前由作者在[10]中介绍和验证,提供了与IEEE 802.11 a/g标准相关的方法。实验结果表明,WiPad的最大隐写带宽可达1.1Mbit/s(数据帧)和0.44Mbit/s(确认帧)。据作者所知,这是所有已知隐写网络通道中容量最大的。

英文摘要:

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 frames and 0.44 Mbit/s for acknowledgment (ACK) frames. To the authors' best knowledge this is the most capacious of all the known steganographic network channels.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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