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The best known multiple letter encryption cipher is the __________ , which treats digrams in the plaintext as single units and translates these units into ciphertext digrams. Question 52 options:

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Answer:

Playfair cipher

Step-by-step explanation:

The Playfair cipher operates by substituting pairs of letters (digrams) in the plaintext with corresponding pairs of letters in the ciphertext, based on a predefined encryption key and specific rules for letter substitution.

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