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Issue No. 04 - October-December (2017 vol. 24)
ISSN: 1070-986X
pp: 38-47
Ran Wang , Tianjin University
Guangquan Xu , Tianjin University
Bin Liu , Tianjin University
Yan Cao , Tianjin University
Xiaohong Li , Tianjin University
To solve the problems of noise interference and multistream tracing in anonymous network tracing, this article proposes an interval packet-size-based spread spectrum (IPS3) network flow watermarking technology, which adopts a new watermarking carrier based on the original direct sequence spread spectrum (DSSS) technology. On one hand, IPS3 solves the problem of multistream tracing through the operation of DSSS for original watermarking. On the other hand, taking the average packet size in a time interval as the watermarking carrier, it solves the problem of network flow watermarking technology being subjected to the network stability by adjusting the carrier size in the process of watermarking modulation. Experimental results show that the proposed IPS3 scheme outperforms the traditional network flow watermarking technology in the above-mentioned two issues: noise filtering and multistream tracing, which can achieve higher accuracy when it is used in anonymous network tracing. This article is part of a special issue on cybersecurity.
Watermarking, Spread spectrum communication, Interference, Receivers, Adaptation models, Computer security, Computer crime, Spread spectrum management

R. Wang, G. Xu, B. Liu, Y. Cao and X. Li, "Flow Watermarking for Antinoise and Multistream Tracing in Anonymous Networks," in IEEE MultiMedia, vol. 24, no. 4, pp. 38-47, 2017.
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