Automating Trust: Breakthrough possibilities 1

Can you automate trust? I think about that every time I come up against something that would be good to do in a virtual world, but is hampered or won’t work at all because trust is an issue.
I can test people in online courses, but how do I know the person taking the test isn’t cheating (or even is the same one I credential)?
I can collaborate on an invention or a book or a movie online, but how do I know all our work won’t be stolen? And, again, am I working with the person I think I am?
Is that person providing counseling an online psychiatrist or a charlatan?
Will the person I pay to create a web site take the money and run?
Is that picture in the dating service a picture of the person I’m chatting with?