Construction of Cryptographically Strong 8x8 S-boxes
Iqtadar Hussain, Tariq Shah, Muhammad Asif Gondal, Waqar Ahmed Khan · 2011
Abstract: The Advanced Encryption Standard (AES) has been lately accepted as the symmetric cryptography standard for confidential data transmission. However, the natural and malicious injected faults reduce its reliability and may cause confidential information leakage. S-box is the pivotal part of AES and many researchers are paying attention to improve the quality of S-box design. In this paper, a method for obtaining cryptographically strong 8 x 8 S-boxes is presented. To know the strength of our box we analyze it against different criterions such as Strict Avalanche Criterion (SAC), Bit Independent Criterion (BIC), differential approximation probability (DP), linear approximation probability (LP), nonlinearity and majority logic criterion are very close to some well known S-boxes from literature. Key words: S-box • SAC • LP • DP • BIC