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0000 121901

PART ^
Answer any two full questions, each carries 9 marks.
User A and B exchange the key using Diffie -Hellman algorithm. Assume 055,

0511, >^ =2, Xp =3. Find the values of ४५. ‏بولا‎ and K.

Summarize the RSA algorithm with example.

Illustrate MDS hash algorithm in detail.

State and prove Fermat’s Theorem. Use Fermat’s theorem to find 3° mod 7
Explain message authentication code based on DES.

PART D
Answer any two full questions, each carries 12 marks.
What are the five principal services provided by PGP and explain how

authentication and confidentiality are provided?
Explain the functionalities provided by S/MIME.
Compare the features of three types of Firewall.

What is the significance of dual signature in SET?
Define the parameters that define an SSL session state.

Give the format of IPSec Authentication header.

ok ok

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