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

Goi, , BM and Phan, , RCW and Siddiqi,, MU (2005) Cryptanalysis of a generalized anonymous buyer-seller watermarking protocol of IWDW 2004. EMBEDDED AND UBIQUITOUS COMPUTING - EUC 2005 WORKSHOPS, PROCEEDINGS, 3823 . pp. 936-944. ISSN 0302-9743

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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.

Item Type: Article
Subjects: Q Science > QA Mathematics > QA75.5-76.95 Electronic computers. Computer science
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 09 Sep 2011 07:49
Last Modified: 09 Sep 2011 07:49
URI: http://shdl.mmu.edu.my/id/eprint/2270

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