Jaypee Institute of Information Technology (JIIT) 2008 B.E Computer Science Test 3 : Cryptography & Network Security - Question Paper
Course Code:07B82CI405
Javpec University oflnformation Technology B Tech 4lh YeartCSEVlT/ECE/BT)
Nov 2008
Time : 90 Min Test T3: Cryptography and Network Security Marks : 30 Note: 1. Attempt all questions
Q 1. (a) [3 marks] List and explain security- services as given in ITU-TX.800.
(b) (3 marks] Explain the procedure for secure electronic transaction(SET) on the internet using credit card.
Q 2. (a) |3 marks] With the help of a diagram explain key expansion algorithm for AES.
(b) |3 marks) Describe the structure of SHA-S12.
Q 3. (a) (3 marks] Explain the AH and ESP protocols used in IPSec.
(b) |3 marks] Explain how PGP provides security services for e-mail.
Q 4. (a) |3 marks] Explain the structure of X.509 certificate.
(b) (3 marks] Explain SSL architecture. Also explain SSL record protocol.
Q 5. (a) |3 marks] Draw and explain common firewall types.
(b) |3 marks] Explain how DDOS attack may be launched and what countermeasures mav be taken?
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| Earning: Approval pending. |
