Cool, looks like a good summary. What I like about the talk I linked to is that it walks you through the process of designing it yourself, starting with the sim

Cool, looks like a good summary. What I like about the talk I linked to is that it walks you through the process of designing it yourself, starting with the simplest version of the idea and then progressively pointing out its weaknesses and showing how you could counteract each weakness with a new idea. And then how there are new attacks against the "fixes," and so on, until you have a fairly secure system. At the end, you understand it way more than if the entire system were laid out from the begnning in a fully formed way.