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数字水印的攻击方法和对策浅析电子书胡启明(武汉理工大学信息工程学院)摘要：在保护数字图像、视频、音频等数字媒体的知识产权方面，数字水印技术是一种很有前景的方法。由于作为版权标记的数字水印正面临着越来越多的攻击，对数字水印的稳健性要求也越来越高。笔者对4类不同原理的数字水印攻击：简单水印攻击、同步水印攻击 削去水印攻击和IBM水印攻击进行了详细论述，并给出了相应的解决对策。-digital watermarking method of the attacks and countermeasures
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抗几何攻击的盲数字水印技术耿敏，李恩平，梁华庆(中国石油大学电子信息工程系，北京102249)摘要：数字水印技术是解决数字作品版权保护的一个重要手段。衡量数字水印技术可靠性的标准是能否抵抗各种水印攻击，而几何攻击是目前困扰数字水印领域发展的突出问题，数字水印多采用盲水印算法。总结了当前抗几何攻击的各种盲水印方法，并对今后的研究方向进行了探讨。-Blind digital watermarking technology Min, Li Yun Ping, Liang Hua (China Univ
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提出了一种离散小波变换域实现图像水印的方法。这种算法充分利用小波变换的特点,把原始图像及水印图像塔式分解,在多分辨率分解后的相同的频段来嵌入水印信息。该方法也利用了人眼视觉特性,算法简单而有效。实验证明,该算法较好地解决了水印不可见性与鲁棒性之间的矛盾,对常见的水印攻击都有较强的鲁棒性。-presents a discrete wavelet transform domain image watermarking method. This algorithm using wavelet tran
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音频水印算法实现，其中包括水印的嵌入，音频水印常用攻击，以及检测算法的实现。-Audio watermarking algorithms, including the watermark embedding, audio watermarking common attacks, and the detection algorithm.
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本代码是一些关于水印处理的一些算法用小波变换来实现，在嵌入水印之后用各种攻击检验算法的鲁棒性-The code is some deal about a number of watermarking algorithm using wavelet transform to achieve, in the embedded watermark after the attacks with a variety of test algorithm robustness
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Watermarking schemes evaluation
Abstract鈥擠igital watermarking has been presented as a solution to copy protection of multimedia objects and dozens of schemes and algorithms have been proposed. Two main problems seriously darken the future of this t
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自适应全尺度小波数字图像水印.09年5月份
在清华学报出版的。实现大容量的水印嵌入，对于各种攻击的鲁棒性。请大家共享-Full-scale wavelet adaptive digital image watermarking .09 years in May, published in the Journal of Tsinghua University. The realization of large-capacity watermark embedding, the robustne
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，应用MATLAB仿真按序选择嵌入位的DCT变换算法，对仿真程序运行后的各种参数
和效果图的变化进行了分析；最后结合GUI开发设计出数字水印执行过程仿真控制界面，并用常见的水印攻击测试了该算
法的鲁棒性。-Application MATLAB simulation embedded spaces in sequence selection algorithm of DCT transform, simulation program running on the various param
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本文提出了基于二维混沌映射的数字图像水印算法，混沌具有随机性、似噪声及对初始条件的极端敏感性等特点。将经过二维混沌映射置乱后的数字水印信号嵌入图像小波域的低频系数，实现了数字水印的隐蔽性、保密性和稳固性；利用二维混沌映射Arnold变换对水印信号进行置乱，不仅增强了水印信号保密性，同时有效提高了视觉上抵抗图像剪切攻击的能力。-In this paper, two-dimensional chaotic map based on digital image watermarking algorit
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Cryptanalysis of Hwang-Changs a Time-Stamp Protocol for Digital Watermarking-In 2005, Hwang et al. [17] proposed a time-stamping protocol for digit
watermarking. They claimed that their scheme is secure against attacks. However, in this
article,
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本文首先系统分析了 snort 规则的组成，详细的介绍了各个部分的含义，这对于开发出新的入侵检测系统，建立自己的攻击规则库有很大的帮助。针对系统所需的适应性和自治性，在详细剖析 snort 规则同时，着重研究基于 CVE 入侵检测系统的规则库的实现，底层嗅探器的实现和嗅探过程等问题。在规则特征选项的模式匹配问题上进行重点说明，给出了一种改进的检测方法，即结合使用协议分析进行模式匹配，从试验数据上大大提高了效率，减少了误报率。同时，本系统所基于的 CVE 知识库，跟踪国际上 CVE 的最新发展动态
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main categories Robust and Fragile Watermarking
Techniques. The former is mainly used for copy right
protection and fingerprinting applications, in which the goal
of watermark is to sustain under all kinds of attacks that
intend to remove the
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main categories Robust and Fragile Watermarking
Techniques. The former is mainly used for copy right
protection and fingerprinting applications, in which the goal
of watermark is to sustain under all kinds of attacks that
intend to remove the
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The geometrical attacks are still a problem for
many digital watermarking algorithms at present. In this paper, we propose a watermarking algorithm for color images resistant to geometrical distortions (rotation and scaling). The singular value dec
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Abstract—Based on the observation that low-frequency DCT
coefficients of an image are less affected by geometric processing,
we propose a new blind MPEG-2 video watermarking algorithm
robust to camcorder recording. Both the embedding and
extr
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this document shows results of robustness of puncturedconvolutive encoder to stirmark attacks in watermarking
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Abstract—A novel image watermarking algorithm against
geometric attacks is proposed to solve watermarking
synchronization problems. In watermark embedding, firstly,
watermark is embedded into host image by a Single Value
Decomposition (SVD) m
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盲水印提取时不需要参考原始载体图像,在信息隐藏、版权保护等方面具有更广泛的应用前景。提出的盲水印算法在分块离散余弦变换(DCT)和离散小波变换(DWT)的基础上,利用关系双方DCT系数和DWT系数在受到攻击时具有相同变化趋势的特点,采用关系嵌入和量化嵌入的自适应选择嵌入策略,较大幅度地提高了盲水印提取的鲁棒性。同时在量化嵌入中采用抖动调制,实现了水印透明性和鲁棒性调节的便捷性。大量仿真实验结果表明该算法对噪声干扰、低通滤波、JPEG压缩、对比度增强等攻击有很好的鲁棒性和透明性。关键词 数字水印盲
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A digital image watermarking scheme must be robust against a
variety of possible attacks. In the proposed approach, a new
rotation and scaling invariant image watermarking scheme is
proposed based on rotation invariant feature and image
norma
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Handling various attacks in watermarking-Handling various attacks in watermarking...
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