| 隐写术的理论安全和容量研究 |
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| 引用本文： | 蒋小标,汤光明,孙怡峰,黄昊.隐写术的理论安全和容量研究[J].计算机工程,2008,34(6):173-175. |
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| 作者姓名： | 蒋小标 汤光明 孙怡峰 黄昊 |
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| 作者单位： | 解放军信息工程大学总后勤部指挥自动化工作站,郑州,450004 |
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| 摘 要： | 对隐写过程中载体视觉特征和统计特征的变化进行约束，得到了以离散无记忆信源为载体的隐写系统理论安全性条件。分析隐写容量的对策论本质，定义安全隐写策略集和主动攻击策略集，给出了主动攻击情形下和被动攻击情形下的隐写容量表达式。
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| 关 键 词： | 信息隐藏 隐写术 理论安全 容量 |
| 文章编号： | 1000-3428（2008）06-0173-03 |
| 收稿时间： | 2007-04-16 |
| 修稿时间： | 2007年4月16日 |
Research on Theoretic-security and Capacity of Steganography |
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| JIANG Xiao-biao,TANG Guang-ming,SUN Yi-feng,HUANG Hao.Research on Theoretic-security and Capacity of Steganography[J].Computer Engineering,2008,34(6):173-175. |
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| Authors: | JIANG Xiao-biao TANG Guang-ming SUN Yi-feng HUANG Hao |
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| Affiliation: | (Command Automatic Work Station, General Logistic Department, PLA Information Engineering University, Zhengzhou 450004) |
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| Abstract: | This paper achieves the qualification of theoretic-security of steganography based on concrete memoryless carriers, by restricting the visual and statistical characteristics of the carrier. It releases the expressions of the capacity of steganography threatened by active or passive attackers. It analyzes the countermeasure essence and defines two strategy sets, including the safe cryptoclastic strategy set and active attack one. |
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| Keywords: | informaticm-hiding steganography theoretic-security capacity |
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