Conceptually, certificates are something that can be used to encrypt information or prove identity, whether of a client device, a service, or an actual person, but ultimately allowing one entity to trust another. In the context of UAG certificate authentication, we are focused more on the purpose of identity, as opposed to encryption itself.
It's very likely that you've already seen the many certificate types that exist for different purposes. So we'll not delve too much into the intricacies of PKI itself, but knowing how to differentiate between them is a fundamental part of being a UAG administrator.
For example, when you browse to your bank's website to manage your account, the bank's site will present a certificate to prove to you (via your browser) that it is indeed who you think it is, and not a spoof run by cyber criminals. In this website scenario, the type of certificate used is typically referred to as a Web Server type for...