Digital Image Sharing Algorithm Based on Quadratic Residue Theorem
Mingfu Qin · Jisuanji gongcheng · 2009
By analyzing the Quadratic Residue(QR) theorem and Rabin cryptosystem and integrating the characteristic of digital image,this paper proposes an image sharing algorithm based on the quadratic residue theorem,and makes a detailed analysis on its reliability.Experimental result indicates that the algorithm is with low data expansibility,high security and good image recovering performance.Some problems which may emerge from image sharing are discussed and the solutions are offered.