Adobe AIR and Mac OS X Server Admin?

Today I’m logging in to a server remotely using Mac OS X Server’s Server Admin tool and I get a dialog asking “Server Admin wants to use the PrivateEncryptedDatak keychain”. Which is interesting as I have no idea what the password is, and googling the term only seems to find a few references which mention Adobe AIR, which I installed earlier today. Curiouser and curiouser.