[__david__]

There's also CurveCP (http://curvecp.org/) which is a more radical alternative (replaces TCP and relies on DNSCurve, a DNS replacement) but has good security built in by default and some interesting features (remote users are identified by their public key so they can reconnect from different IP addresses and the stream keeps going without a reconnect).

It seems like a much harder thing to get adoption going for but it has good thought behind it and can exist in parallel with the rest of the TCP/IP world. I would love to see it get to a place where you can just download it from Debian or Homebrew...

[tquai]

I've been using CurveCP for over a year privately and love it. I'll probably expand to production, starting with CurveHTTP, with the next release of NaCl. Not sure if that makes me the chicken or the egg.