虚拟光学信息隐藏理论及并行硬件实现

基于光学信息处理的多维数据加／解密方法作为一种新的“非数学”数据加密技术，因其具有实时的数据传递速度、密级高、密钥设计灵活且自由度大等优点．已成为研究的又一热点。在虚拟光学信息隐藏理论模型的基础上，使用数字信号处理器芯片的并行策略实现了一种具有多重锁、多重密钥的高密级多媒体信息隐藏系统。对系统性能的评估结果表明，该系统可以实时完成对多种数字媒体信息的加／解密．且系统性能优良。这在一定程度上弥补了虚拟光学多维数据隐藏技术所丧失的信息光学固有的并行处理能力。系统的实现为虚拟光学加密方法在现实信息加密中的应用开辟了一条有效的途径。

Information Hiding Theory Based on Virtual Optics and Its Implementation with Parallel Hardware

optical encryption technology has been a subject of receiving many research efforts because of inherently parallel nature of optical information processing, high security strength and huge degree of freedom for key design. Optical security technology has appeared very promising and is likely the next generation of information security. An implementation of virtual-optics based encryption with a parallel hardware strategy is presented. A TMS320C6000 digital signal processor is used to design an information hiding system with multiple-locks and multiple-keys. An evaluation of the system performance is made and it is shown that the encryption and decryption of digital information in real-time can be achieved with such a strategy. This approach paves the way for the realization of virtual-optics based methodology by combining major advantages of optical encryption and electronic encryption.