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7th March 2016, 02:18 PM
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Join Date: May 2012
Re: Cryptography And Network Security BPUT Questions

As you want I am here giving you sample question paper for Cryptography And Network Security subject of BTECH course of Biju Patnaik University of Technology (BPUT).

Sample paper :

Unit – I
1. a) With a neat diagram explain a model for Network security. 7M
b) Differentiate between Transposition Cipher and Substitution Cipher.
Apply two stage transposition cipher on the text “treat diagrams as single
2. a) What is Steganography- Briefly explain any three techniques used. 7M
b) Encrypt the word “Semester Result” with the keyword “Examination

Unit – II
3. a) With a neat diagram, describe Classical Feistel Cipher structure. 7M
b) Explain the different Cipher block modes of operation. 8M
4. a) Explain the following:
i. Differential Cryptanalysis ii. Linear Cryptanalysis
b) Explain the RC4 algorithm.

Unit – III
5. a) Discuss the Diffie-Hellman Key Exchange mechanism. 7M
b) With a neat diagram discuss the ingredients of a Public Key
6. a) With a neat diagram
discuss the essential elements of a Digital Signature Process 7M
b) Write the RSA algorithm for Encryption and Decryption.
Given p=3, q=11, e=7 & m=5,

Unit – IV
7. a) Describe the structure of Private and Public key rings used in PGP. 7M
b) Discuss Transport mode and Tunnel modes of using IPSec
8. a) Describe the following with respect to Kerberos Version. 4:
i. Authentication Server ii. Ticket Granting Server
b) Briefly discuss the benefits of IPSec. Also list ant four IPSec services.

Unit – V
9. a) What are the components of a Virus-
Discuss the four phases in the life time of a virus- 7M
b) What is a Firewall- Discuss any three types of Firewall- 8M
10. a) What are the objectives of SET-
What do you understand by a dual signature that is used in SET-
b) Discuss the following with respect to SSL Architecture:
i. SSL session ii. SSL Connection

Address:
Biju Patnaik University of Technology
Chhend Main Rd
Chhend
Rourkela, Odisha 769004


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