The presented work sets out to subsidize to the general body of knowledge in the field of cryptography application by evolving color image encryption and decryption scheme based on the amalgamation of pixel shuffling and efficient substitution. Arnold’s cat map is applied to snap off the correlation in pixels of image and the shuffled image is encrypted by 16-byte S-box substitution. Computer simulations with a standard test image and the outcome is presented to scrutinize the competence of the projected system. Several image-quality measures and security analyses have been made out for the encrypted image to estimate the statistical and differential strength of the scheme. A comparison is presented by following out the scheme with 256-byte S-box and 16-nibble S-box to support for sturdiness of the idea. It is concluded from the results of analyses that the proposed scheme with 16-byte S-box can resist exhaustive attacks and is apt for practical applications.
Shah, Tariq; Qureshi, Ayesha; and Usman, Muhammad
A Novel Color Image Encryption Scheme Based on Arnold’s Cat Map and 16-Byte S-box,
Applications and Applied Mathematics: An International Journal (AAM), Vol. 16,
1, Article 33.
Available at: https://digitalcommons.pvamu.edu/aam/vol16/iss1/33