Talk:Authentication

How can this page be improved: Kosik 01:15, 30 July 2009 (CDT)
 * If we miss some important relationship between authentication and other concepts, notes about those relationship can be added here.
 * More examples can be added. At each example we should say (if it is not clear):
 * The set of possible principals at each end of the communication channel.
 * What kind of information flows through the communication channel.
 * Why authentication is useful in a particular case.