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A Steganography Scheme in P2P Network

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4 Author(s)
Zishuai Li ; Sch. of Comput. & Commun., Hunan Univ., Changsha ; Xingming Sun ; Baowei Wang ; Xiaoliang Wang

With the extensive application of the peer-to-peer (P2P) network, the torrent file, a vital part of the BitTorrent P2P network, has become a very popular file format over the Internet. Through detailed analysis, we found that the torrent files are ideal host carriers of steganography. In this paper, we propose a steganography scheme for torrent files, in which two approaches, namely Letter Case Change (LCC) and Field Reusage (FR), are adopted to produce stego-torrent. In LCC, the insensitivity of letter case in torrent files is used to hide data. The approach doesn't change the size of the torrent files, which allows for a high level of transparency and security. In FR, the structure redundancy of torrent files is exploited to embed information. The approach has a tremendous capacity. The flexible use of these two approaches can meet different needs. The experimental results show these methods are highly efficient and imperceptible.

Published in:

Intelligent Information Hiding and Multimedia Signal Processing, 2008. IIHMSP '08 International Conference on

Date of Conference:

15-17 Aug. 2008