ed25519 authentication plugin uses an algorithm that is based on the Elliptic Curve Digital Signature Algorithm (ECDSA).
ed25519 authentication plugin must be installed before it can be used.
To install with the
INSTALL SONAME statement:
INSTALL SONAME 'auth_ed25519';
To install in a configuration file with the
[mariadb] ... plugin_load_add = auth_ed25519