Double image multi-encryption algorithmbased on fractional chaotic time series : Open Mathematics

摘要

In this paper, we introduce a new image encryption scheme based on fractional chaotic time series, inwhich shuffling the positions blocks of plain-image and changing the grey values of image pixels are combined toconfuse the relationship between the plain-image and the cipher-image. Also, the experimental results demonstratethat the key space is large enough to resist the brute-force attack and the distribution of grey values of the encryptedimage has a random-like behavior.