Answer the following problems.

problem 1) prepare a deatail note on VPN architecture.

problem 2) Describe approches for achieving SSO.

problem 3) Alis and Bob want to establish a secret key using Deffie Hellman key exchange protocol. Assuming the values are n = 10, g = 3, x = 5, y = 11. Determine values of A, B, K1 & K2.

problem 4) How challenge/response tokens are used for authentication?

problem 5) Describe the processes of generating digital signature using RSA.

problem 6) Describe 3-D secure protocol.

problem 7) What is intruder? Describe different types of intruders.

problem 8) Consider plain text alphabet D. Using RSA algorithm and value of public key P = 5, E = 3, Q = 11. Determine the private key & cipher text.

problem 9) describe digital Immune system for virus protection.

problem 10) describe how master secret is created from pre-master secret in SSL.