Question: 1 . 2 One possible fictional mode, DrD Mode, takes a key, K , and Initial Value, IV . Ci = EKi ( Mi )

1.2 One possible fictional mode, DrD Mode, takes a key, K, and Initial Value, IV.
Ci=EKi(Mi) where K0is K and Ki= K ((IV + i ) mod 264) for a 64-bit block cipher.
Draw the block diagram of DrD's mode showing encryption of 3 blocks and another showing their decryption.

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