58
John Doe Logs onto the
Airline Service
Airline Service
John Doe
AirlineInc.com
1. http://www.AirlineInc.com
2. HTTP
Redirect
3. https://www.AirlineInc.com/login
4. Login Web Page
5. Submit Username and Password
John
Doe interacts with the airline service
and purchases an airplane ticket
John
Doe types in the URL to the airline
service, which immediately
redirects his browser to a login
URL and switches to "secure
HTTP" (a padlock appears in
the bottom right-hand corner of his
browser). John Doe logs in by presenting a password. He
then proceeds to interact with the
airline service to purchase an airplane
ticket.
time