Question: Problem 10. (10 pts) For the CBC mode: (1) If one IV value is used to encrypt two messages, what will be the problem? (2)

Problem 10. (10 pts) For the CBC mode: (1) If one IV value is used to encrypt two messages, what will be the problem? (2) Suppose a message is divided into five message blocks. If the third ciphertext block is modified during transit, which blocks can the receiver correctly decrypt and which not?

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