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2007
IEEE

DSSS-Based Flow Marking Technique for Invisible Traceback

9 years 1 months ago
DSSS-Based Flow Marking Technique for Invisible Traceback
Law enforcement agencies need the ability to conduct electronic surveillance to combat crime, terrorism, or other malicious activities exploiting the Internet. However, the proliferation of anonymous communication systems on the Internet has posed significant challenges to providing such traceback capability. In this paper, we develop a new class of flow marking technique for invisible traceback based on Direct Sequence Spread Spectrum (DSSS), utilizing a Pseudo-Noise (PN) code. By interfering with a sender’s traffic and marginally varying its rate, an investigator can embed a secret spread spectrum signal into the sender’s traffic. The embedded signal is carried along with the traffic from the sender to the receiver, so the investigator can recognize the corresponding communication relationship, tracing the messages despite the use of anonymous networks. The secret PN code makes it difficult for others to detect the presence of such embedded signals, so the traceback, while...
Wei Yu, Xinwen Fu, Steve Graham, Dong Xuan, Wei Zh
Added 04 Jun 2010
Updated 04 Jun 2010
Type Conference
Year 2007
Where SP
Authors Wei Yu, Xinwen Fu, Steve Graham, Dong Xuan, Wei Zhao
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