Signed Provider records for the DHT

[aarshkshah1992]

We need to have signed provider records in the DHT so receivers can verify if the records were indeed advertised by peers marked as the providers on the records. However, this depends on ipfs/kubo#6916.

@jacobheun @Stebalien

1. Can we add this to Working Kademlia for 0.6 ?
2. What's the status on making Ed25519 the default signing ?

[jacobheun]

Can we add this to Working Kademlia for 0.6?

That is the goal, I've duplicated the 0.6 milestone here and added it for tracking.

What's the status on making Ed25519 the default signing?

This is planned for IPFS 0.6, ed25519 will be used by default.

[mikeal]

One more thing I’d like to see make it into the record is the CID prefix. It’s only two varints, but it makes the record a lot more valuable as it allows us to decode the data into an actual data structure.

Since it’s in the record it would end up being backwards compatible and could even be optional (although I’d like to see us include it by default).

[aschmahmann]

I’d like to see us include it by default

👍 especially for people that want to use graphsync instead of bitswap having the codec information is very useful.