Question #1: Convert the plaintext “PRIME” into ciphertext by using multiplication by 5 in the mod 26 multiplicative cipher system. Provide written evidence of your work/computations. Question #2: Whe
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Question #1: Convert the plaintext “PRIME” into ciphertext by using multiplication by 5 in the mod 26 multiplicative cipher system. Provide written evidence of your work/computations.
Question #2: When using a multiplicative cipher system in mod 26, how many different values can be used for the “multiply by” number? Explain/Justify how you arrived at your answer.
Question #3: How does using a prime mod value make a multiplicative cipher system more secure than a non-prime mod? Explain/Justify your answer.
Question #4: The ciphertext “dqw9” was created using a multiplicative key of 4 in mod 37. Convert the ciphertext “dqw9” back into plaintext.
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