Question: Answer the question about Cryptography a. Let n = 26, a = 3, and b = 123. What is the ciphertext corresponding to the phrase

Answer the question about Cryptography

a. Let n = 26, a = 3, and b = 123. What is the ciphertext corresponding to the phrase THIS IS A CIPHER MESSAGE.

b. A requirement for a cipher is that every plaintext letter corresponds to a different ciphertext letter. If a and b are not relatively prime to n, does the affine cipher meet this property? Either prove it does or present a counterexample.

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