Data Transmission Security

Task 8 – Public Key Infrastructure (PKI)

1. Who authorizes subordinate Certificate Authority (CAs)? Why is this important?

1. What does the issuance policy on a CA control?

1. How does a client verify the information in an SSL certificate to determine if it trusts the certificate?

1. How are revoked certificates identified? Under what circumstances would a certificate be revoked?

Task 9 – Data Transmission Security

1. How does SSL verify authentication credentials?

3. What protocol is the successor to SSL 3.0?
4. How can you tell that a session with a web server is using SSL?
5. What is the difference between HTTPS and S-HTTP?
6. What does it mean when HTTPS is stateful?
7. What is the difference between IPsec tunnel mode and transport mode?

Solution: