Tuesday 27 November 2012

Calicut University B.Tech Computer Science and Engineering Cryptography and network security Question paper

Are you looking for the old question papers of calicut university B.Tech Computer Science and Engineering Cryptography and network security ??  Get it from here , Feel free to download the question paper from here and use it to prepare for your upcoming exams.

SEVENTH SEMESTER B.TECH. (ENGINEERING) DEGREE EXAMINATION, JUNE 2009
CSIIT 04 702 -CRYPTOGRAPHY AND NETWORK SECURITY
(2004 Admissions)
Time: Three Hours Maximum : 100 Marks
Answer all questions.
Part A
Each question carries 5marks.
I. (a) What is Euler's totient? Explain.
(b)
Explain on Passive and Active attacks.
(c)
Explain the approaches to attacking RSA algorithm.
(d)
Specify the requirements for hash function.
(e)
Explain the use offair coin flip Algorithm.
(f)
. What ia ...broadcuting?
(g)
Explain_the working principle ofKerberos.
(h)
Describe the transport and tunnel modes of Encapsulating Security Payload. (8 x 5 =40 marks)
PartB
Each question carries 15 marks.
n. (a) (i) Explain how secret keys can be distributed to two communication parties.
(ii) Explain Steganography. (7 + 8 =15 marks)
Or
\ (b) Explain the DES encryption scheme in detail.
m. (a) Discuss in detail about the RSA crypto system.
Or
(b) What is Message authentication code? Explain.

IV.
(a) Explain any two Secret sharing schemes.
Or
(b)
Write short notes on:
(i)
Blind Signatures.
(ii)
Quantum Cyrptography.
(7 + 8 = 15 marks)
V.
(a)
Explain the issues in Web Security.
Or
(b) Explain on:
(i)
Password Selection Strategies.
(ii)
ISO authentication framework.
(7 +8 = 15 marks)
[4 )( 15 = 60 marks1

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