Which of the following statements are true?
i) In the CBC mode, the plaintext block is XORed with previous ciphertext block before encryption.
ii) The CTR mode does not require an Initialization Vector
iii) The last block in the CBC mode uses an Initialization Vector
iv) In CBC mode repetitions in plaintext do not show up in ciphertext
- iii)
- ii) and iv)
- All the Statements are true
- i) ii) and iv)
(d).i) ii) and iv)
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