The Ultimate Guide to High Availability with MariaDB

Authentication Plugin - mysql_old_password

You are viewing an old version of this article. View the current version here.

The mysql_old_password authentication plugin is the default authentication plugin that will be used for an account created when no authentication plugin is explicitly mentioned and old_passwords=1 is set. It uses the pre-MySQL 4.1 password hashing algorithm, which is also used by the OLD_PASSWORD() function and by the PASSWORD() function when old_passwords=1 is set.

Contents

  1. Installing the Plugin
  2. Creating Users

Installing the Plugin

The mysql_old_password authentication plugin is statically linked into the server, so no installation is necessary.

Creating Users

It is not recommended to create new users with the mysql_old_password authentication plugin. The password hashing algorithm is no longer secure, and the plugin is primarily provided for backward-compatibility.

The easiest way to create a user with the mysql_old_password authentication plugin is to make sure that old_passwords=1 is set, and then create a user account that does not specify an authentication plugin. For example:

SET old_passwords=1;
CREATE USER username@hostname IDENTIFIED BY 'mariadb';

If SQL_MODE does not have NO_AUTO_CREATE_USER set, then you can also create the user via GRANT. For example:

GRANT SELECT ON db.* TO username@hostname IDENTIFIED BY 'mariadb';

Similar to all other authentication plugins, you could also specify the name of the plugin in the IDENTIFIED VIA clause while providing the password hash as the USING clause. For example:

SET old_passwords=1;
Query OK, 0 rows affected (0.000 sec)

SELECT PASSWORD('mariadb');
+---------------------+
| PASSWORD('mariadb') |
+---------------------+
| 021bec665bf663f1    |
+---------------------+
1 row in set (0.000 sec)

CREATE USER username@hostname IDENTIFIED VIA mysql_old_password USING '021bec665bf663f1';
Query OK, 0 rows affected (0.000 sec)

Comments

Comments loading...
Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.