Engineering B.E. (Computer Engineering) Sem 6 Cryptography and System Security Dec 2022 Question Paper - Mumbai University | munotes

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Q1 Explain the different modes of block ciphers c Differentiate between SHA-1 and MD5 d What is Buffer overflow attack? e Explain ARP spoofing 2 Diffie Hellman key agreement algorithm. Also discuss the possible [10] attacks on it. Consider the example where A and B decide to use the Diffie Hellman algorithm to share a key. They choose p=23 and g=5 as the public parameters. Their secret keys are 6 and 15 respectively. Compute the secret key that they share AES algorithm. Highlight the difference between AES and DES. [10] a_ Explain various types of firewalls. [10] various attacks on digital signatures and the methods by which they can 4 Elaborate the sign and verification process of RSA as a digital signature scheme. [10] Write short notes on [10]
Q1 Packet sniffing
Q2 SQL injection 5 State the rules for finding Euler’s phi function. Calculate [10] Explain Kerberos as an authentication service. [10] 6 a_ Enlist the various functions of the different protocols of SSL. Explain the of handshake protocol b How does ESP header guarantee confidentiality and integrity of packet payload? [10] What is an authentication header (AH)? How does it protect against replay

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