Digital image scrambling encryption based on circular shifting
Xuefeng Zhang · Jisuanji yingyong yanjiu · 2009
Image scrambling based on coordinate transformation was a kind of image encryption technologies.This paper put forward a scrambling method for gray image based on image matrix's circular shifting,the random-bit of circle shifting increased non-regularity of the transformation,improved the algorithm's ability of anti-attacking.The algorithm had a simple principle and easy to implement,and had no restriction on image size.Theoretical analysis and simulation experiments show that the algorithm has good security and maneuverability.