cjdns[1] is an encrypted ipv6 overlay network that uses the firstbits of your public key hash to generate your ip address. theoretically, multiple keys can sha

cjdns[1] is an encrypted ipv6 overlay network that uses the firstbits of your public key hash to generate your ip address. theoretically, multiple keys can share an ip-hash, but the handshake will fail if the intended recipient doesn't have the expected keypair[2]. so far this hasn't been an issue, but you are better off if you know the destination's pubkey beforehand. [1]: https://github.com/cjdelisle/cjdns https://github.com/cjdelisle/cjdns [2]: https://github.com/cjdelisle/cjdns/blob/master/doc/faq/doppleganger.md https://github.com/cjdelisle/cjdns/blob/master/doc/faq/doppl...