problem 1:

Which security service isn’t a goal of the cryptographic systems?

problem 2:

Why would you not contemplate the employ of One-Time Pad Cipher for large messages?

problem 3:

Illustrate the following statement: “DES exhibits strong avalanche effect.”

problem 4:

What is the major threat when RSA (public key cryptography) is employed to securely distribute a DES symmetric key? Illustrate your answer.

problem 5:

Illustrate out the three (3) limitations of the firewall.

problem 6:

Compare packet-filtering and proxy-base firewalls. Provide advantages and drawbacks of both.