The IPv6,IPSec and PKI together may be interesting to authenticate and encrypt traffic without any entity managing the traffic. It could eliminate the client/s

The IPv6,IPSec and PKI together may be interesting to authenticate and encrypt traffic without any entity managing the traffic. It could eliminate the client/server by activating the authentication and encryption with exchange of certificates by using a PKI. It may provides a full p2p encryption in the network layer without logging your traffic somewhere or third parties. open-sourced would be awesome.