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information hiding model
相关语句
  信息隐藏模型
     Random-time-launching information hiding model
     随机时间发送的信息隐藏模型
短句来源
     Information Hiding Model and Digital Watermarking Technique
     信息隐藏模型与数字水印技术
短句来源
     We give two new kinds of secret key information hiding model, based on Cachins model, but by using random time sequence to control launching time, and renewing the key each time. They obviously decrease the succeeding probability of passive attack, and have some ability to oppose active attacks.
     文中给出两种新的私钥信息隐藏模型 ,基于Cachin在 1998年提出的信息隐藏模型 ,但采用随机时间序列来控制发送时间 ,并使密钥及时更新 ,明显降低了被动攻击成功的概率 ,同时具有一定的防主动攻击的能力 .
短句来源
     This article is an introductory review of information hiding model and digital watermarking technique,focusing on the definitions,classes,models methods and the futures of digital watermarking technique.
     本文较系统地论述了信息隐藏模型和数字水印技术 ,探讨了数字水印技术的嵌入、恢复与检测模型 ,最后指出数字水印技术的发展前景。
短句来源
     An information hiding model is introduced which can becloud human auditory in transmission of tone.
     提出了一种在话音传递中,蒙蔽人类听觉的信息隐藏模型
短句来源
  相似匹配句对
     Information Hiding
     信息隐藏
短句来源
     Security of Information Hiding
     信息隐藏安全性研究
短句来源
     INFORMATION
     海外信息
短句来源
     Information
     合作信息
短句来源
     Space Model of Information Hiding
     信息隐藏的空间概念模型构建
短句来源
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We give two new kinds of secret key information hiding model, based on Cachins model, but by using random time sequence to control launching time, and renewing the key each time. They obviously decrease the succeeding probability of passive attack, and have some ability to oppose active attacks.

文中给出两种新的私钥信息隐藏模型 ,基于Cachin在 1998年提出的信息隐藏模型 ,但采用随机时间序列来控制发送时间 ,并使密钥及时更新 ,明显降低了被动攻击成功的概率 ,同时具有一定的防主动攻击的能力 .

Information hiding is a new information security technology based on the great development and popularization of Internet and multimedia technology.This article is an introductory review of information hiding model and digital watermarking technique,focusing on the definitions,classes,models methods and the futures of digital watermarking technique.

信息隐藏 ,作为信息安全的新兴领域 ,是在信息技术特别是网络技术和多媒体技术等迅速发展和广泛普及的基础上发展起来的。本文较系统地论述了信息隐藏模型和数字水印技术 ,探讨了数字水印技术的嵌入、恢复与检测模型 ,最后指出数字水印技术的发展前景。

An information hiding model is introduced which can becloud human auditory in transmission of tone. The information is hidden in digital audio signals by an arithmetic of Preudo-random sequences generation. Encrypted the hidden information, then processed the digital audio signal in subsections and carryed out discrete cosine transform (DCT), with some parts of section. Selected the high frequency coefficient in DCT domain according to human auditory system to be quantified as...

An information hiding model is introduced which can becloud human auditory in transmission of tone. The information is hidden in digital audio signals by an arithmetic of Preudo-random sequences generation. Encrypted the hidden information, then processed the digital audio signal in subsections and carryed out discrete cosine transform (DCT), with some parts of section. Selected the high frequency coefficient in DCT domain according to human auditory system to be quantified as to embed the encrypted information hiding. As a result of experiment, both security and robustness are improved greatly at the same time. Even if others discovere there exists information hiding in the digital audio, its difficult to abstract the hiding information without the cryptographic key.

提出了一种在话音传递中,蒙蔽人类听觉的信息隐藏模型。给出了数字音频信号中信息隐藏的伪随机序列生成算法。利用此算法对隐蔽信息先加密,再对数字音频信号进行分段处理,并选出部分段做离散余弦变换(DCT),最后依据人类的听觉系统选择DCT域中高频系数进行量化完成加密的隐蔽信息嵌入。实验结果表明,在提高鲁棒性的同时,还大大增加了安全性,就是在外界发现数字音频含有隐藏信息的情况下,在不知道密钥的情况下,还是很难提取隐蔽信息。

 
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