基于双光瞳光学系统的图像加密及安全认证技术研究

项目名称： 基于双光瞳光学系统的图像加密及安全认证技术研究

项目编号： No.61205003

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 信息四处

项目作者： 袁胜

作者单位： 华北水利水电大学

项目金额： 22万元

中文摘要： 光学信息安全技术以其快速并行数据处理能力、多维度、大容量、高鲁棒性等诸多优势，正吸引着越来越多的科研人员投入到这一新兴领域的研究。然而，目前国内外对该项技术的研究还处于初步探索阶段，仍有许多问题亟待解决。本课题拟依据双光瞳成像系统的光学原理，提出一种多图像加密技术，解决目前此类技术中加密容量与需传输的密钥量之间的矛盾，并通过实验验证其可行性；随后拟在双光瞳多图像加解密系统的研究基础上，进一步研究并提出基于光学方法的非对称密码技术，解决目前已有非对称密码体制算法复杂，加解密速度较慢的问题；同时发挥光信息处理技术的优势，使非对称密码具有良好的鲁棒性，为信息的传输、管理和分配提供安全和便利；另外，依据双光瞳干涉系统，拟提出一种多模态身份认证技术，使伪造的生物特征难以奏效，增强系统的安全性和授权的可靠性。在该项技术中，拟采用以加密密钥生成参考生物特征图像的方法，节省多用户识别系统中的数据存储空间。

中文关键词： 双光瞳系统；光学图像加密；安全认证；强度关联成像；光学干涉

英文摘要： The optical information security technique,as its fast parallel data processing capability, multi-dimensional, large capacity, high robustness, and many other unique advantages, has been attracting many researchers devoting themselves to this new research area. However, the current study on optical information security technique at home and abroad is still in the initial exploratory stage. There are still many problems to be solved urgently. In this project, we intend to proposed an optical multi-image encryption technique based on the optical principle of two-pupil imaging system.This technique may solve the contradiction between the encrypted capacity and the amount of key needed to be transmitted. We also intend to verify the feasibility of our proposed technique by experiment. Subsequently, on the basis of the study on two-pupil multi-image encryption and decryption system, we intend to further study and propose an optical asymmetric cryptography to solve the problem of complex operation and slow data processing speed existing in the mature asymmetric cryptography. Meanwhile, we utilize the advantages of optical information processing technique to make the proposed asymmetric cryptosystem with strong robustness. Thus it will provide safety and convenience for information transmission, management and distrib

英文关键词： Two-pupil system；Optical image encryption；Authentication；Intensity correlation imaging；Optical interference