Information Security - Dec 2014

Computer Engineering (Semester 6)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1 (a) What is security Services? Explain any three types of security services.(7 marks) 1 (b) Explain Vegenere Cipher.(7 marks) 2 (a) Define Block Cipher. Explain Design Principles of block cipher.(7 marks) 2 (b) What is primitive root? Explain Diffie-Hellman key exchange algorithm with proper example.(7 marks) 2 (c) Elaborate various kinds of attacks on RSA algorithm.(7 marks) 3 (a) Explain DES algorithm with Figure.(7 marks) 3 (b) Explain MD5 Algorithm.(7 marks) 3 (c) Explain Sub key generation Process in Simplified DES algorithm with Example.(7 marks) 3 (d) Explain SHA512 Algorithm.(7 marks) 4 (a) Write Short note on S/MIME.(7 marks) 4 (b) Explain Kerberos Authentication System.(7 marks) 4 (c) Explain Key Distribution methods.(7 marks) 4 (d) Explain Modes of Operations.(7 marks) 5 (a) Explain Secure Socket Layer Protocol.(7 marks) 5 (b) Explain Active Directory Services of Windows 2000 Server.(7 marks) 5 (c) Explain Secure Electronic Transaction Protocol.(7 marks) 5 (d) Explain Security of E-Commerce.(7 marks)