Abstract
The S-box transformation is very important step for advanced encryption standard algorithm. The S-box values are generated from the multiplicative inverse of finite field with an affine transform. There are many techniques in literature to generate the multiplicative inverse values. In this paper, a software method of producing the multiplicative inverse values, which is the generator of S-box values will be discussed. The proposed technique is based on the mathematical concept of log and antilog. Xtime function.
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