Cryptanalysis of a generalized anonymous buyer-seller watermarking protocol of IWDW 2004

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/2607

Title: Cryptanalysis of a generalized anonymous buyer-seller watermarking protocol of IWDW 2004
Author(s): Goi, Bok-Min; Phan, Raphael C.; Siddiqi, M. U.
Abstract: In this paper, we analyze the security of a generalized anonymous buyer-seller watermarking protocol recently proposed by Choi and Park at IWDW 2004. We prove that it has not met the designers’ intended security criteria by showing that an attacker can actually: (1) discover the unique buyer’s watermark which was chosen by the watermark certificate center (WCC), and (2) decrypt the encrypted watermarked digital content without any extra cost. Also, it is surprising to note that when designing their protocol, the designers did not take into consideration the conspiracy attacks.
Publication type: Conference paper
Research centre: Swinburne University of Technology. Sarawak School of Engineering
Source: Proceedings of the International Conference on Embedded and Ubiquitous Computing 2005 Workshops, 6-9 December 2005, Nagasaki, Japan, pp. 936-944
Publication year: 2005
Publisher: Springer-Verlag Berlin
ISBN: 3 540 30803 2
Publisher URL: http://dx.doi.org/10.1007/11596042_96
Peer reviewed