一种基于双光束干涉和非线性相关的身份认证方法

发布时间：2018-04-16 17:04

本文选题：光学信息安全 + 非线性相关　；参考：《物理学报》2017年04期

【摘要】：提出了一种基于双光束干涉结构和非线性相关算法的身份认证方法.该方法在传统双光束干涉加密结构中引入基于"随机二值振幅分布"的相位恢复技术,将多幅图像分别编码至对应的稀疏相位分布,并通过叠加复用技术和非线性相关算法,实现了多级别的身份认证功能.其认证过程中不同级别用户所持有的相位密钥是一个稀疏相位分布,数据量更小,便于存储和传输.此外,认证时的输出图像虽然含有标准参考图像的核心信息却具有视觉上的不可分辨性,降低了信息泄露的风险.理论分析和数值仿真结果都证实了该方案的有效性和可行性.
[Abstract]:An identity authentication method based on double beam interference structure and nonlinear correlation algorithm is proposed.In this method, the phase recovery technique based on random binary amplitude distribution is introduced into the traditional two-beam interferometric encryption structure. The multiple images are encoded to the corresponding sparse phase distribution, and the superposition multiplexing technique and nonlinear correlation algorithm are used.The function of multi-level identity authentication is realized.In the process of authentication, the phase key held by different level users is a sparse phase distribution, and the amount of data is smaller, so it is easy to store and transmit.In addition, although the output image contains the core information of the standard reference image, it is visually indistinguishable and reduces the risk of information leakage.The effectiveness and feasibility of the scheme are verified by theoretical analysis and numerical simulation.
【作者单位】：深圳大学光电工程学院光电子器件与系统教育部/广东省重点实验室;
【基金】：国家自然科学基金(批准号:61377017,61307003) 中德合作项目(批准号:GZ 760) 深圳大学自然科学基金(批准号:2016028) 深圳市科技计划项目(批准号:JCYJ20160520164642478)资助的课题~~
【分类号】：O436.1

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