Top Questions on Cryptography

1. What are Attacks and Threats? Explain about various mechanisms by which organizations can protect from them.

2. Write in detail about various Security Attacks. Differentiate between them.

3. What are the various Security services that a Cryptographic package has to provide.

4. What is Cryptography? Explain the key elements of a Cryptographic system. Write about Conventional and Public-key cryptographic methods available.

5. Write a note on various Conventional Cryptographic algorithms available. State their advantages and disadvantages

6. Write about Data Encryption Standard. What are its advantages and disadvantages? What are the other cryptographic algorithms based on this standard?

7. IDEA provides better security than DES. How?

8. How is Key Distribution and Management done in a secure manner in a network?

9. What is Message Authentication? Write about MAC and SHA.

10. Explain how Encryption and Decryption is done in a Public-key Cryptographic system.

11. Write in details about RSA

12. Write about Diffie Hellman method of Public-key cryptography

13. State and Prove Euclidian Algorithm, Euler Theorem and Chinese Reminder Theorem.

14. What is a Digital Signature? How are Digital Certificates generated?

15. What is an Authentication Service? Write about Kerberos and X.509 Authentication Services

16. What is Authentication? Explain in detail how password-based and addressed-based authentication services work.

17. Explain about how Encapsulating Security Payload can be done.

18. What is the need for Electronic mail security? Write about PGP.

19. Write a note on S/MIME

20. Write about various issues related to IP Security

21. What is SSL? Explain the architecture of SSL

22. What is a Secure Electronic Transaction? Explain how secure payments can be made over the web.

23. Who is an Intruder? Explain how intruders can be detected in a network. Also explain the password storing method used in UNIX Operating system.

24. Define Virus, Worm, Trojan Horse and Bacteria. Write about various types of virus and explain how they can be detected.

25. What is a Firewall? Explain the design principles of a firewall.

26. Write about the following:

1. Confidentiality
2. Authentication
3. Masquerade
4. Non-Repudiation
5. Denial of Service
6. Role of Round Function in DES
7. TDEA
8. Cipher Block Chaining Mode
9. Cipher Feedback Mode
10. FEP
11. Public Key Cryptography
12. MAC
13. MD5
14. Fabrication
15. Public and Private Keys
16. Session Key
17. Permanent Key
18. Features of PGP
19. Compression Algorithm
20. CRC
21. Message Authentication methods
22. Tunnel Mode ESP
23. IPv6
24. Handshake Protocol
25. Digital Certificate
26. Transport Layer Security
27. Secure Electronic Transaction
28. SALT
29. Virus
30. Macro Virus
31. Anti Virus Software
32. Worm
33. Trojan Horse
34. Firewall
35. Trusted System