| 6.1 | Can we use RC4 with DTLS? Why or why not? |
| 6.2 | We said that during a client certificate exchange, the client verifies that it is the certificate owner by sending the server a CertificateVerify message. How does the server prove to the client that it is the owner of the certificate that it sends? |
| 6.3 | Set up a PPP/SSL VPN between a Linux and FreeBSD machine where the Linux machine is the client and the FreeBSD machine is the server. |
| 6.4 | Increase the security of our PPP/SSL tunnel by adding PPP-level authentication to both sides. |
| 6.5 | Build an SSL VPN without using PPP. Hint: Use gtunnel and stunnel. |
| 6.6 | Write an SSL client that provides an interactive session to the user at the terminal. Test your client with our sslecho server. |
