2 Cryptography Consider Two Messages N Blocks M Mm2mn M2 Milm2l Mn M M2 Differ First Block Q37210505

2. [Cryptography] Consider two messages each of n blocks m: Mm2mn and M2 milm2l. |mn, where M, and M2 differ only in the first block. Which of the following statements hold? Assume the same key is used for all encryption. c) If M1 and M2 are encrypted using counter mode (CTR), but the same initialization vector (IV) is used for encrypting both messages, none of the ciphertext blocks will repeat between each message.

OR

 

OR