This idea looks like it should be published somewhere. If it is, please post the citation.

I'm aware of ideas of this sort, but I haven't followed any of them in detail. After I've studied the post carefully, and read whatever articles I can find, I'll post some evaluation. There are lots of details to be concerned about:

• What are the detailed tradeoffs between key-size, security, and latency?
  
  
• What do we do about a rare, but occasional, collision of hashed fingerprints?
  
  
• Do we need a central repository to make sure that entries don't get completely lost? Part of the question here is whether the loss of an entry is considered harmful only to the handle owner (who can republish), or whether it could be harmful to the public.