Analysis of Development of Dynamic S-Box Generation

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Advanced Encryption Standard is a symmetric block cipher which is widely used in encrypting data by different organizations to make secure their data from being hacked.The only nonlinear part of Advanced Encryption Standard (AES) is S-Box (Substitution Box), which provides confusion in the algorithm.But the main limitation of the S-Box in AES is that it is a static one throughout the algorithm, which is the main center of attraction for the cryptanalyst to analysis the weakness for certain attacks.Since 2000 onwards a number of algebraic attacks on AES have been carried out, which challenged the security of AES.But at the same time till date a number of researches have being carried out for making AES more secure by using dynamic S-Boxes to provide more confusion to the cryptanalyst.In present paper we tried to address dynamic S-Box techniques and provide their analysis on the basis of S-Box properties, which are essential for secure S-Box construction like Non-linearity, XOR profile, Strict Avalanche criterion (SAC) and Bit independence criteria (BIC).Also these techniques are compared with the original AES results.