Ahmed Ragab

Ahmed Ragab
Benha University · Department of Electrical Engineering

Bachelor of Engineering

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Human relationships rely on trust, which is the reason that the authentication and related digital signatures are the most complex and confusing areas of cryptography. The Massage Authentication Codes (MACs) could be built from cryptographic hash functions or block cipher modes of operations. Substitution-Box (S-Box) is the unique nonlinear operati...

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