Download GTU BE/B.Tech 2019 Summer 6th Sem Old 160702 Information Security Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 6th Sem Old 160702 Information Security Previous Question Paper

1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI(OLD) ? EXAMINATION ? SUMMER 2019
Subject Code:160702 Date:21/05/2019
Subject Name: Information Security
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Explain types of Security Attacks. 07
(b) Explain Diffie - Hellman key exchange algorithm. Also explain Man-in-Middle
attack with example.
07

Q.2 (a) Explain conventional security model used for information security. 07
(b)
Encrypt Message "Secure" using Hill Cipher with key [
17 10
23 19
]
07
OR
(b) Encrypt the given message using playfair cipher.
Message : GOOD MORNING
Key : GTU EXAMS
07

Q.3 (a) Compare Symmetric Key Algorithm with Asymmetric Key Algorithm. 07
(b) Explain Data Encryption Standards Algorithm with diagram. 07
OR
Q.3 (a) Explain Modes of Algorithm. 07
(b) Explain SHA-512 Algorithm. 07

Q.4 (a) List & Explain various key management techniques. 07
(b) Explain concept of Dual Signature in SET. 07
OR
Q.4 (a) What is SSL? Explain SSL Handshake & Record Protocol. 07
(b) Explain Authentication mechanism of Kerberos. 07

Q.5 (a) What are the five services principal services provided by PGP? Explain in detail. 07
(b) Explain Digital Signature. Also explain its use with the help of example. 07
OR

Q.5 (a) Explain IP Sec with its benefits. 07
(b) What are the characteristics of hash function? Also explain basic techniques of
hash algorithm.
07



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