Question: 6. (a) The ciphertext text ELNI was encrypted by a Hill cipher with a 2 x 2 matrix. The plaintext is dont. Find the encryption

6. (a) The ciphertext text ELNI was encrypted by a Hill

6. (a) The ciphertext text ELNI was encrypted by a Hill cipher with a 2 x 2 matrix. The plaintext is dont. Find the encryption matrix

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