Question: Could someone show me how to go about solving this? 1. Alice needs to send Bob a 16-bit message every day, so they decide to

Could someone show me how to go about solving this?

Could someone show me how to go about solving this? 1. Alice

1. Alice needs to send Bob a 16-bit message every day, so they decide to protect the integrity of these messages using CBC-Mac with a 16-bit block cipher and randomized IV (rather than the fixed all-O block). On the first day, Alice sends the message 0x0ff0 with MAC 0x000fdaal (here the first 16 bits 0x000f are the IV and the last 16 bits Oxdaal are the tag). Compute a valid MAC (IV and tag) for the message 0x0fff. Explain why your tag must be correct

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