BIT Information Security

bitsemester 5

This course familiarizes with basic concepts of information security. This course includes cryptographic algorithms, authentication systems, access controls, malicious logics, network security and security audits and ethical issues.

Chapter Wise Notes Question Banks Syllabus Chapter Wise Questions Viva Practical

Institute of Science and Technology

2080

Bachelor in Information Technology

Information Security

BIT303

Full Marks: 60

Pass Marks: 24

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

"Section A"

Long Answer Questions. Attempt any TWO questions.

[2 × 10 = 20]

Define Euler totient function with an example. Find the GCD of 12 and 32 using Extended Euclidean algorithm.

[4 + 6]

Describe the role of hash functions in authenticating message? How SHA – 1 algorithm is used to produce hash value of a message? Explain.

[3 + 7]

Distinguish between threats and attack. Discuss some computer security strategy. Assume a prime number 23 and 9 as its primitive root. Alice select a private key 5 and Bob select the private key 6. Now find the secret key value that Alice and Bob shared using Diffie – Hellman protocol.

[2 + 3 + 5]

"Section B"

Short Answer Questions. Attempt any EIGHT questions.

[8 × 5 = 40]

Discuss about two factor authentication with an example.

[5]

Explain the different types of access control principles.

[5]

Describe any two types of malicious software.

[5]

What is risk assessment? Describe the security auditing architecture.

[1 + 4]