This study contributes to creating an unbreakable S-Box based on a strong bent function
expanded by DNA sequences and investigates and analyzes the strength of the proposed S-Box against
major standard criteria and benchmarks, such as interpolation attacks, algebraic attacks, avalanche effect,
nonlinearity, and period. The outcome of the tests shows that the proposed S-box has good security, as well
as it is passed all the randomness tests. On an average, the results after the tests applied have been come
with SAC = 0.50122, NL = 112, BIC =103.40625, and an iterative period with a maximum value of
256. The complexity of the proposed S-Box increased with an algebraic expression of 255 terms, which
implies an algebraic attack resistance of 2160. Based on the proposed S-Box, a candidate image-enciphering
scheme is suggested to prove the strength of the S-Box. The analysis of the experiments that applied two
modes of images, grey and RGB images, supports the scheme’s robustness against different differential and
statical attacks using standard criteria such as correlation coefficient analysis, information entropy, histogram
analysis, unified average change intensity, number of pixels change rate and many others. This enforces its
capability for use in modern-day cryptosystems that are utilized in multimedia data exchange. |
