Handshake parameters

[whyrusleeping]

I think we should modify the handshake protocol between nodes to include options such as "prefer compression" and "prefer encryption" and if the both peers can agree on an encryption/compression type, applying that as a filter over the connection.

[jbenet]

Very much agreed. I think we should abstracting out all this into a package like crypto/tls, basically a tls-lite type of thing. Will be much easier to audit + verify + reuse.

[whyrusleeping]

Another parameter that I was thinking of would be "Supported Services", so nodes can run "Just a DHT" or opt out of having diagnostics, or maybe just serve bitswap, or maybe just serve overlay (when we get there), or any combination of them all.

[jbenet]

Another parameter that I was thinking of would be "Supported Services", so nodes can run "Just a DHT" or opt out of having diagnostics, or maybe just serve bitswap, or maybe just serve overlay (when we get there), or any combination of them all.

+:100: ^ :100: