I'm not sure a P2P SSH system would be any better. With SSH, you still need to manage and verify keys. This is where the PITA is with PGP. People don't like ge

I'm not sure a P2P SSH system would be any better. With SSH, you still need to manage and verify keys. This is where the PITA is with PGP. People don't like generating keys, fiddling with key rings, etc. So I don't see significant usability gains there. Conceivably, you could do something with ephemeral keys, but then you're moving away from an SSH model. And ephemeral keys have their own problems. Namely, you have to verify the other person's key every time. (Often people use voice verification for this.) So while managing keyrings in PGP is annoying, so are ephemeral keys. I think crypto inherently imposes annoying burdens on end users. Also, a big advantage with PGP is that it works asynchronously. I can send you a PGP-encrypted email, and your computer doesn't even have to be turned on at the time. With P2P, both parties have to be present and have their clients running at the same time.