Eve captures Bob’s Hill cipher machine, which uses a 2 by 2 matrix M mod 26. She tries a chosen plaintext attack. She finds that the plaintext “ba” encrypts to “HC” and the plaintext “zz” encrypts to “GT”. What is the matrix M.
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Eve captures Bob’s Hill cipher machine, which uses a 2 by 2 matrix M mod 26. She tries a chosen plaintext attack. She fi...