文章基本信息

标题：On the Implementation of Spread Spectrum Fingerprinting in Asymmetric Cryptographic Protocol
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作者：Minoru Kuribayashi
期刊名称：EURASIP Journal on Information Security
印刷版ISSN：1687-4161
电子版ISSN：1687-417X
出版年度：2010
卷号：2010
期号：1
DOI：10.1155/2010/694797
语种：English
出版社：Hindawi Publishing Corporation
摘要：Digital fingerprinting of multimedia contents involves the generation of a fingerprint, the embedding operation, and the realization of traceability from redistributed contents. Considering a buyer's right, the asymmetric property in the transaction between a buyer and a seller must be achieved using a cryptographic protocol. In the conventional schemes, the implementation of a watermarking algorithm into the cryptographic protocol is not deeply discussed. In this paper, we propose the method for implementing the spread spectrum watermarking technique in the fingerprinting protocol based on the homomorphic encryption scheme. We first develop a rounding operation which converts real values into integer and its compensation, and then explore the tradeoff between the robustness and communication overhead. Experimental results show that our system can simulate Cox's spread spectrum watermarking method into asymmetric fingerprinting protocol.
关键词：Watermark Image;Quantization Error;Spread Spectrum;Cryptographic Protocol;Commitment Scheme