The Jordan government wants you to evaluate their new software which is designed to make an Online Automated Voting system.

1: A -> S: A

2: S -> A: {Q, NS} ka+

3: A -> S: {AnsQ, NS} ks+

Where:

A: is a voter.

S: is a voting server.

ka+: As public key.

ks+: Voting servers public key.

Q: question send by the server.

AnsQ: answer to the question send by client.

a) Does this protocol provide anonymity?

b) Does it provide confidentiality?

c) Does the protocol provide authentication?

d) Can each voter vote at most once?

e) Is availability guaranteed?

f) Is integrity provided?

g) Is the protocol safe? If not, suggest a solution.