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(a) Explain the two possible configuration for 3DES.
(b) What is the main disadvantage of 3DES?
(c) Why are most modern symmetric algorithm block ciphers?
(d) Describe four weaknesses of symmetric cryptography.
(e) Consider that Alice have to send bulk data to a remote user Bob.
Explain how Alice would use both asymmetric and symmetric cryptography to achieve both security and efficiency in terms of encryption time.
ADDRESS RESOLUTION AND PROTOCOL ADDRESSES Address resolution (ARP) is a network interface layer protocol. Protocol addresses are used in all upper layers. Address resolution s
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In the early days when there were some dozen computers machine on the network, it was done individually but now as we have looked that there are millions of computers on the intern
Limitations of firewall Firewalls cannot protect a network if security rules are not followed properly by an organization or if the rules are not defined properly. Firewalls ar
QUESTION (a) What do you meant by data spoliation? (b) Justify the following statement: "Disk imaging differs from creating a standard backup of disk." (c) Why do yo
how to encryt the data in plaintext cipher
Use the Chinese remainder theorem to evaluate x from the following simultaneous congruences: x ≡ 1 (mod 2); x ≡ 2 (mod 3); x ≡ 3 (mod 5). Calculate gcd(14526, 2568). (
Write down the short notes on VTR. Communication between different types of the equipment and software is made possible by making use of the networks. Full-screen text editor is s
Why an organization need the issue specific security policy
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