Download PTU B.Tech 2020 March CSE-IT 6th Sem BTIT 602 Information Security And Risk Management Question Paper

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Roll No. [ TTTTTT] [ ] Total No. of Pages : 02
Total No. of Questions : 09

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INSTRUCTION TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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Q1) Answer briefly :

1. What is a one way function?
2. Name three broad categories of applications of public key cryptosystem.
3. What are key principles of security?
4. What is a public key certificate?

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5. What are the properties a digital signature should have?
6. Why does PGP generate a signature before applying compression?
7. What protocols comprise SSL?
8. What is threat assessment?
9. What is Information Security Life Cycle?

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10. What are IPSec protocols?

SECTION-B

Q2) Using e = 13, d = 37, and n = 77 in the RSA algorithm, encrypt the message “GOOD” using the values of 00 to 25 for letters A to Z. For simplicity, do the encryption and decryption character by character.

Q3) What requirements must a public-key cryptosystem fulfill to be a secure algorithm?

Q4) What is message Integrity? What are the different ways of preserving the integrity of a document?

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Q5) What are various types of malicious programs? Explain various types of Viruses.

Q6) Comment on the differences between MD4 and MDS5. Specifically, to what extent do you think that MDS5 is stronger than MD4, and why?

SECTION-C

Q7) In Secure Socket Layer (SSL) and Transport Layer Security (TLS), why is there a separate Change Cipher Spec Protocol, rather than including a change cipher spec message in the Handshake Protocol?

Q8) What is message authentication? What types of attacks are addressed by message authentication? List some approaches to producing message authentication. In what ways can a hash value be secured so as to provide message authentication?

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Q9) Explain various modes of Risk Analysis.

NOTE : Disclosure of identity by writing mobile number or making passing request on any page of Answer sheet will lead to UMC against the Student.