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Computers and Technology, 09.01.2020 12:31 lilymessina94

Let m be a message consisting of ℓ aes blocks (say ℓ=100). alice encrypts m using randomized counter mode and transmits the resulting ciphertext to bob. due to a network error, ciphertext block number ℓ/2 is corrupted during transmission. all other ciphertext blocks are transmitted and received correctly. once bob decrypts the received ciphertext, how many plaintext blocks will be corrupted?

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