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| 混沌加密的虹膜识别系统的安全性 | |
| 引用本文： | 刘洋,彭文达,王清华,沈满德. 混沌加密的虹膜识别系统的安全性[J]. 光子学报, 2008, 37(11): 2342-2345 |
| 作者姓名： | 刘洋 彭文达 王清华 沈满德 |
| 作者单位： | 1. 中国科学院西安光学精密机械研究所,西安,710119;中国科学院研究生院,北京,100049 2. 深圳大学,光电子学研究所,广东,深圳,518060 3. 深圳大学,信息工程学院,广东,深圳,518060 |
| 摘 要： | 提出了针对特征码的单向耦合映像格混沌加密系统,以及Arnold变换与单向耦合映像格混沌系统相结合对虹膜信息进行加密的复合混沌加密系统.利用Arnold变换置乱并混淆虹膜图像,通过镜像解决零点不变性问题,最后通过单向耦合映像格混沌系统实现加密.实验表明本算法密钥空间大,统计特性好,密钥敏感性强,加密速度快,平均加密时间70 ms. |
| 关 键 词： | 特征码 单向耦合映像格 Arnold变换 虹膜加密 |
| 收稿时间： | 2007-04-29 |
Security System of Iris Recognition Based on Chaos Encryption |
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| LIU Yang,PENG Wen-da,WANG Qing-hua,SHEN Man-de. Security System of Iris Recognition Based on Chaos Encryption[J]. Acta Photonica Sinica, 2008, 37(11): 2342-2345 | |
| Authors: | LIU Yang PENG Wen-da WANG Qing-hua SHEN Man-de |
| Affiliation: | LIU Yang1,2,PENG Wen-da4,WANG Qing-hua3,SHEN Man-de1,2(1 Xi'an Institute of Optics , Precision Mechanics,Chinese Academy of Sciences,Xi'an 710119,China)(2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China)(3 College of Information Engineering,Shenzhen University,Shenzhen,Guangdong 518060,China)(4 Institute of Optoelectronics,China) |
| Abstract: | OCML chaos systems to encrypt the iris identify code,and compound chaos encryption system(CCES)which combines Arnold transform and OCML,to encrypt iris image were proposed.Arnold transform was used to shuffle and confuse iris image,and utilize mirrored way to proceed the question of zero position invariable.The encryption operation was fininshed by OCML chaos system.The results show that the algorithm has such advantages:larger key space,better key sensitivity and better statistical characteristics,and the ... |
| Keywords: | Identify code OCML Anold transform Iris encryption |
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