Analysis of the Sensitivity Attack against Electronic Watermarks in Images
Analysis of the Sensitivity Attack against Electronic Watermarks in Images
复制标题
图像电子水印敏感攻击分析
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
Marten van Dijk
中科院分区：
文献类型：
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作者：
J. Linnartz;Marten van Dijk
在电子水印的某些应用中，检测内容是否包含水印的设备属于公有领域。攻击者可以将这种检测器误用为在每次实验中最多显示一位水印信息的先知。对信息泄漏进行了信息论分析，提出了以数量级减少信息泄漏的方法。
In some applications of electronic watermarks, the device that detects whether content contains a watermark or not is in public domain. Attackers can misuse such detector as an oracle that reveals up to one bit of information about the watermark in each experiment. An information-theoretical analysis of the information leakage is provided, and a method is proposed to reduce the information leakage by orders of magnitude.