Image Scrambling Algorithm based on Grouping Calculation
Lianyuan Jiang, Haohao Yuan, Jianbing Jiang, Yalan Zhang, Jian He · International Journal of Security and Its Applications · 2014
With the rapid development of the Internet and the broadband, more and more people transit images on the Internet.Given the information security, some important images must be encrypted when transmitted.Image scrambling serves as one of the powerful encrypting tools.This paper proposes an image scrambling algorithm based on grouping calculation.This algorithm divides every byte of the stored image information into three groups, and swaps the position of each group so that the pixels' positions are scrambled.And then empower the three groups with corresponding values and do linear calculation for new byte values so that the pixels' color values are scrambled.The empirical results show that this algorithm has a satisfactory scrambling result.