| 1: | How can the exchange of public keys be secured without PKI? |
| 2: | Describe briefly the concept of trusted introducing. |
| 3: | Describe briefly the concept of a trusted third party. |
| 4: | PKIs can form different topologies of trust. List three different topologies. |
| 5: | Explain the PKI enrollment procedure. |
| 6: | Describe three enrollment protocols that are commonly used today. |
| 7: | Give at least three reasons for placing a certificate on a CRL. |
| 8: | Describe the steps needed to put a certificate on a CRL. |
| 9: | How can you view and verify the certificate of a certain site? |