SPARSE BASED IMAGE ENCRYPTION USING 6D-CHAOTIC SYSTEM AND RC6
Hrishikesh Mondal, Arghya Pathak, Subhashish Pal, ANUP KUMAR DAS, SOMNATH CHOUDHURY · Science and Culture · 2023
This paper proposes a symmetric key image encryption technique using 6D-chaotic system.Nonzero elements of the generated sparse matrix with the help of a well-trained dictionary for a greyscale image are only considered for encryption.The initial condition of the variates used in chaotic system has been generated from a 32-bit char user key after encrypting with RC6 (32,16,12).The efficiency of the proposed cryptosystem, has been analyzed by performing the standard test like Entropy, SSIM, NPCR, UACI, Histogram analysis etc.