秘密共享技术及其在图像加密中的应用

Secret Sharing Scheme and Its Application in Image Encryption

秘密共享技术将秘密值进行分布式保存以提高安全性,在信息安全领域占据着重要的地位,将其用于数字图像加密可以实现图像的完善保密性。回顾了基本的秘密共享方案,分析了将其用于图像加密的基本方式,总结了新兴的视觉密码学的优势。对视觉密码学的各个分支与主要研究内容进行了介绍,分析了存在的问题和发展方向。分析与实验表明,视觉密码学在图像加密领域具有比传统秘密共享方案更高的实现效率和更好的安全性,具有良好的发展前景。

The technology of secret sharing, which occupies an important position in information security, improves the security of secrets by saving them in a distributed way. The combination of secret sharing scheme and image encryption can achieve perfect security of images. The basic secret sharing schemes are reviewed and the way of them being applied in image encryption are analyzed. The research branches of visual cryptography, which is the rising image encryption technology, are introduced and the problems existing and the future research trends are analyzed in detail. Analysis and experiments show that visual cryptography is more efficient and secure than traditional secret sharing in image encryption, and has good prospects.