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Question

Which RC5 mode will have the ciphertext longer than the plaintext by at most the size of a single RC5 block?

a.

RC5 block cipher

b.

RC5-Cipher Block Chaining

c.

RC5-Cipher Block Chaining Pad

d.

RC5-CipherText Stealing

Answer: (c).RC5-Cipher Block Chaining Pad

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Q. Which RC5 mode will have the ciphertext longer than the plaintext by at most the size of a single RC5 block?

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