Security, Symmetric Encryption, Cryptography, Encryption.
is modulo irreducible polynomial P(x) = x⁸ +x⁴ +x³ +x+1. For example if the input is (25,25,25,25) the output is also (25,25,25,25). The Polynomial Math looks like the below. The Ci does not need the modulo as its power is less than 8. 25 is first converted to a hex value (11001)hex. Then it is