A networking protocol in which all messages have a to and from header that are public keys. All messages are encrypted and signed. There is no need for a Verisign or GPG-like association of name to key because the key is considered the authoritative name of the entity you're talking to.
It's homepage can be found here: 
http://www.cakem.net/
Currently, the chief developer of the project is EricHopper.
One page links to CAKE:
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