Question: Cryptography 2. Fix a modulus m and use the affine cipher with key k1=(a,b) to encrypt an element x; then encrypt the result with a

Cryptography

2. Fix a modulus m and use the affine cipher with key k1=(a,b) to encrypt an element x; then encrypt the result with a key k2=(c,d). What is the resulting cipher? Given your answer, is security of the affine cipher with a given modulus m increased if one encryption is followed by a second encryption with a different key

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