BSc IT Sem 5 Network Security Question Paper PDF 2026 - Mumbai University | munotes

Questions asked in this paper

1. Q1 Attempt any two of the following: What is the principle behind One Time pads? Why is it highly secure? Explain the various ways of attack, (such plain-text attack etc.) the two basic ways of transforming plain-text into cipher-text? Explain the following principles of security: Explain-CFB.(Cipher mode of algorithms What are the features of blowfish algorithm? Explain the steps in encryption process Explain the principles/working.of IDEA algorithm 10 marks
   • d. Explain in detail the steps in each round of DES Attempt any two of the following: 10 Compare symmetric and. asymmetric key cryptography using their various the key requirements of message digest? the difference between MAC and message digest? Explain the concept of Digital Envelope? 4, Attempt any two of the following: 10 a, Write short note on private key management What is cross-certification? Why is it needed? Describe the role of CA in creation/revocation of Digital Certificate Explain the steps in creation of Digital Certificate
2. Q5 Attempt any two of the following: a, What is buffer overflow attack’on SSL? Whatare the objectives SET? Write a detailed-note on VPN (Virtual Private Network) What are the attacks on packet filter firewall? Attempt any two of the following: 10
3. Q4 What is authentication token? Explain its working in brief
   • b. Explain the password based authentication and the problems associated with it Explain the usage of smart cards in authentication,
   • d. Explain shared secret method of mutual authentication canned by Camscanner
4. Q7 Attempt any three of the followin
   • a. the different types of criminal attacks?
   • b. Discuss how encryption happens in RCS
   • c. Explain the working of SHA (Secure Hash Algorithm) the concept of NAT (Network Address Translation) Writea detailed note on biometric authentication

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