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Question 7 (4 points). When a block cipher is used in CBC mode, the encryption of the ith block of the plaintext m[i] is described
Question 7 (4 points). When a block cipher is used in CBC mode, the encryption of the ith block of the plaintext m[i] is described as: c[i]-E(k, c[i-1] XOR m[i] ), then how the cipher block c[] is decrypted to recover the corresponding plaintext block m[i], i.e
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