I am familiar with the concept of PKI and how it works in theory. I however have been unable to find an article explaining it's real world use. Can someone please provide some practical, real-world examples? For example, how does Active Directory factor in with PKI? What common application use PKI? And so forth.
I have recently heard conversations regarding moving to Windows Server 2008 and Bitlocker (I believe it was bitlocker anway). Can someone tell me why a PKI solution would be required in this scenario?