1.Write a utility in Java which can take a given private key, the corresponding public key certificate and a message and sign and verify that message. 2. Write a utility in Java which can take a given...

1.Write a utility in Java which can take a given private key, the corresponding public key certificate and a message and sign and verify that message. 2. Write a utility in Java which can take a given private key, the corresponding public-key certificate and a message and encrypt and decrypt that message using RSA algorithm. 3. What are the trends in cloud security related to user’s data encryption? Study them.

4. Firewall should be situated .

(a) inside a corporate network

(b) outside a corporate network

(c) between a corporate network and the

ourside world

(d) none of these