Question: How is 3 DES an improvement over normal DES? It uses public and private keys. It hashes the message before encryption. It uses three keys

How is 3DES an improvement over normal DES?
It uses public and private keys.
It hashes the message before encryption.
It uses three keys and multiple encryption and/or decryption sets.
It is faster than DES.
How is 3 DES an improvement over normal DES? It

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