Imran Abbasi

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This paper proposes a compact design of SMS4 S-box using combinational logic which is suitable for the implementation in area constraint environments like smart cards. The inversion algorithm of the proposed S-box is based on composite field GF(((2 2) 2) 2) using normal basis at all levels. In our approach, we examined all possible normal basis combinations(More)
Complex systems are fascinating because emergent phenomena are often unpredictable and appear to arise ex nihilo. The other side of this fascination, however, is a certain difficulty in comprehending complex systems , particularly for students. To help students more fully understand emergence and self-organization, a course on complexity theory was designed(More)
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