The server checks if a peer ID has 64 chars.
In that case the ID is treated as a public ed25519 key which is validated against the signature and messsage send by the client. If the signature, message and public key does not match the connection to the client is closed.
This is useful to allow clients to use permanent peer IDs which cannot be stolen (while they are disconnected).
Peer IDs less or more than 64 chars are not validated.
id: '621843f72d062b5f94b5c928cae92382711090dc0d22b55ef5a51ca0b1f8482e'
token: 'ed25519|733bed773f5821caf27d0c12ee43b589ce508db2326fedf4c5d44f8d8b2dae716f128b059d732b879d7bfc1b59e7ccd1d13b3336db23f5e4e85b89519a66760a|17ef87ecc06'
- public key as
id - signature and (plain) message as token with a
ed25519prefix; separated via|