cryptography

Assume that Alice and Bob use an affine cipher for encryption and decryption over GF12") and the modulus polynomials MX)x+x+x+x+1 Nice wants to send a plaintext message P(x) ="hi'or (78) and the keys are Ky(x) (2) and (x) = (AB). Find out the ciphere ( CPOK K(x)) and show the decryption method [P(x) = (C(X) -K(x)) * K Ox] by Bob so that he can find the plaintext Once you uploads from your second device. conto che Assume that Alice and Bob use an affine cipher for encryption and decryption over GF12") and the modulus polynomials MX)x+x+x+x+1 Nice wants to send a plaintext message P(x) ="hi'or (78) and the keys are Ky(x) (2) and (x) = (AB). Find out the ciphere ( CPOK K(x)) and show the decryption method [P(x) = (C(X) -K(x)) * K Ox] by Bob so that he can find the plaintext Once you uploads from your second device. conto che