基于虹膜特征的密钥生成和IDEA算法的图像加密方案  

Image Encryption Scheme Based on Keys Generated by Iris Feature and IDEA Algorithm

作　　者：张奕[1] 李建平[2] 赵刚[3] 

机构地区：[1]后勤工程学院后勤信息工程系,重庆400016 [2]后勤工程学院国际小波分析应用研究中心,重庆400016 [3]后勤工程学院训练部,重庆400016

出　　处：《后勤工程学院学报》2008年第3期62-66,共5页Journal of Logistical Engineering University

基　　金：国家自然科学基金资助项目(10471151);国家863计划资助项目(2007AA01Z423)

摘　　要：提出了虹膜特征的密钥生成算法，该算法对加密者的虹膜进行处理，包括虹膜的定位、归一化和特征提取等过程，得到了由虹膜特征生成的密钥。在虹膜特征生成密钥的基础上，采用安全可靠的IDEA算法对机密图像进行加密，既保留了IDEA算法作为常规加密算法的优良特性，又将生物特征技术引入其中，开辟了新的加密思路，其试验结果表明加密的结果良好，达到了预期的目的。The author of this paper introduced the key generation algorithm of the iris feature. This algorithm includes iris localization, normalization, feature extraction and so on. Finally we have obtained the key produced by the iris feature, one the basis of which safe and reliable IDEA algorithm is used to encrypt the secret image, which not only reserves the advantages of conventional encryption algorithm, but brings in biological feature technology, so as to explore the new thinking pattern of encryption. The test result indicated that the encryption result was good and has served the anticipated purpose.

关 键 词：虹膜 生物特征 IDEA 图像加密 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]