基于Rabin密码体制的图像分存改进算法

Image Sharing Improvement Algorithm Based on Rabin Cryptosystem

图像分存是图像保护的重要措施之一;本文在分析Rabin密码体制及二次剩余定理的基础上,提出了对基于二次剩余定理的数字图像分存改进算法。改进算法为无损图像分存;实验结果表明:图像分存后,安全性高,图像恢复效果好。

Image Sharing is an important measure to protect the image. By analyzing the quadratic residue theorem and Rabin Cryptosystem, and then an image sharing improve algorithm is presented based on this theory. The algorithm is lossless image sharing scheme. Experimental result indicates that the improve algorithm is with high security and good image recovering performance. Experiments have testified that this algorithm is effective. Some problems which may emerge from image sharing are discussed and the solutions are offered.