Usage:
This tool can be used to retrieve the on-chain session key for a particular validator stash. The accompanying RPC command can then be executed on the validator host to verify that the key is applicable. This might be useful for validator operators who host mutliple instances and wish to verify stash/host associations.
Definition: A session key is single key that represents six 6 public keys associated with a validator instance. These public keys and their accompanying private keys are found on the validator host in the path:
/home/$USER/.local/share/$CHAINNAME/keystore
Generate: Session keys are generated from the validator host. One method of creating a session key is by issuing an RPC command on the the host machine as follows:
curl -H "Content-Type: application/json" -d '{"id":1, "jsonrpc":"2.0", "method": "author_rotateKeys", "params":[]}' http://localhost:9944
The author_rotateKeys RPC command does not erase any keys previously generated and can safely be executed multiple times. In the event that previously generated session_keys for a particular validator instance are forgotten it is advised to regenerate the keys using this command.