关联成像技术在光学信息加密方面的研究现状及展望

Research progress and prospect for optical information encryption based on ghost imaging technology

光学信息安全技术因其高速、多维、并行等特点,成为现代加密技术的主要研究内容。而关联成像技术作为一种基于光场高阶关联获取物体信息的主动成像机制,具有结构简单、灵敏性好、抗干扰能力强等特点,同时其数据压缩降维的特性为光学信息安全技术提供了新的思路。基于此,根据应用场景的不同,详细介绍了关联成像技术在图像加密、保密传输、信息隐藏和认证及密钥分发等方面的国内外发展历程和应用现状,分析了关联成像加密方案存在的安全漏洞,讨论实际应用中尚存在的问题,并对关联成像加密方案的未来发展趋势进行了展望。

Optical information security technology has become the main research content of modern encryption technology because of its high speed and parallel characteristics. Ghost imaging is an active imaging technique in which information of the object is obtained based on high-order correlation of light fields. It has the characteristics of simple structure, high sensitivity and anti-interference. At the same time, the characteristic of data compression provides new ideas for optical information security technology. In this paper, according to different application scenarios, the development history and application status of ghost imaging technology in image encryption, secrecy transmission, information hiding and authentication, key distribution were introduced. The security vulnerabilities were also analyzed, and the problems that still exist in practical applications were discussed. The future development trend of ghost imaging encryption scheme was prospected.