共谋攻击 所谓共谋攻击(Collusion Attacks)就是利用同一原始多媒体数据集合的不同水印信号版本,来生成一个近似 的多媒体数据集合,以此来逼近和恢复原始数据,其目的是使检...
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First of all, the mathematical model of linear collusion attack is given. And according to the model, the design rules of video watermarking for resistance to linear collusion are put forward.
首先通过分析线性共谋攻击的数学模型,建立了有效抵抗线性共谋攻击的视频水印设计规则,并根据该规则提出了能够有效抵抗线性共谋攻击的视频水印方案。
参考来源 - 安全视频水印关键技术与应用研究The experiment results show that, the scheme is of less influence on object program’s performance, simply implementation, better performance on resisting interpretation attack and collusive attack.
实验结果证明,本文算法对目标程序性能影响较小,实现更简单,抗共谋攻击与解释攻击能力有不同程度的提高。
参考来源 - 基于指令分布的软件水印设计与实现Finally, a compressed-domain video watermarking algorithm robust against self-collusion attack is proposed by utilizing the new characteristics of H.264/AVC.
第三,针对H.264/AVC编码标准的新特性,提出一种可抵抗共谋攻击的H.264/AVC压缩域视频水印算法。
参考来源 - H.264/AVC视频流的信息隐藏技术研究·2,447,543篇论文数据,部分数据来源于NoteExpress
对于丢帧、帧重组以及共谋攻击有很强的鲁棒性。
The experimental results show that the embedded watermark is robust against the attacks such as frame drop, swap and collusion.
采用基于局部评价标准差、局部评价集中度的方法识别和抑制共谋攻击;
The standard deviation and concentration ratio of local evaluation was used to identify and control collusion attack.
但方案1不能够提供非对称性(防抵赖性),方案2不能够抵抗共谋攻击。
But the scheme 1 does not provide asymmetry (non-repudiation) and the scheme 2 does not resist collusion attack.
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