1. Execute the following command: 
    ssh-keygen -t ed25519
  2. Distribute the public key using the following syntax: 
    ssh-copy-id -i ~/.ssh/id_ed25519.pub <USER>@<HOST>
    Token Description
    USER A valid user on the host computer.
    HOST The host that has an active ssh service.

    If ssh-copy-id command doesn't work, you can directly append the content of the id_ed25519.pub file to the ~/.ssh/authorized_keys file (i.e. create this file if it doesn't exists) of the target <USER> on the target <HOST>.