Cryptanalysis and Improvement of a Block Cipher Based on Multiple Chaotic Systems

Figure 6

Results of the KPA: (a) the original image $P$; (b) ciphered image $C$ of $P$; (c) plain image $M$; (d) ciphered image $D$ of $M$; (e) recovered image from $C$.

(a)

(b)

(c)

(d)

(e)