Consider a security system that uses Cipher Block Chaining (CBC) mode to increase its encryption safety. i) Design and explain the CBC mode using an Advanced Encryption Standard (AES). ii) What is the...

Consider a security system that uses Cipher Block Chaining (CBC) mode to increase its encryption safety.

i) Design and explain the CBC mode using an Advanced Encryption Standard (AES).

ii) What is the function of Initialization Vector (IV) in the CBC Mode and what happened if we remove the IV from the CBC.