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Consider a Playfair cipher that uses the password WORKHARD. 1. Construct the matrix associated with this Playfair cipher. 2. Encrypt the plaintext message: EVENINGS.

Consider a Playfair cipher that uses the password "WORKHARD". 1. Construct the matrix associated with this Playfair cipher. 2. Encrypt the plaintext message: "EVENINGS". Show your work step by step. Otherwise, your answer is wrong. 3. Decrypt the ciphertext message: "NYEECTYLYL". Show your work step by step. Otherwise, your answer is wrong.

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