Kizspy | Question: 21 (Choose 1 answer)
Which of the following statements best describes the characteristics of the Electronic Code Book (ECB)mode?
A. ECB mode encrypts identical plaintext blocks into identical ciphertext blocks
B. ECB mode uses a different key for each block of plaintext
C. ECB mode ensures that ciphertext blocks are always different, even if plaintext blocks are the same
D. ECB mode is the most secure mode of operation for block ciphers
