A Secure Image Encryption Algorithm Based on Rubik's Cube Principle

Figure 3

Key sensibility for image decryption using the proposed algorithm.

(a) Original image: Lena

(b) Encrypted image (a) with key 𝐾₁

(c) Decrypted image (b) using correct key 𝐾₁

(d) Decrypted image (b) using wrong key 𝐾₂

(e) Original image: Black

(f) Encrypted image (e) with key 𝐾₁

(g) Decrypted image (f) using correct key 𝐾₁

(h) Decrypted image (f) using wrong key 𝐾₂

(i) Original image: Baboon

(j) Encrypted image (i) with key 𝐾₁

(k) Decrypted image (j) using correct key 𝐾₁

(l) Decrypted image (j) using wrong key 𝐾₂

(m) Original image: Checkerboard

(n) Encrypted image (m) with key 𝐾₁

(o) Decrypted image (n) using correct key 𝐾₁

(p) Decrypted image (n) using wrong key 𝐾₂