Simple Password Check Plugin

simple_password_check is a password validation plugin. It can check whether a password contains at least a certain number of characters of a specific type. When first installed, a password is required to be at least eight characters, and requires at least one digit, one uppercase character, one lowercase character, and one character that is neither a digit nor a letter.

Note that passwords can be directly set as a hash, bypassing the password validation, if the strict_password_validation variable is OFF (it is ON by default).

Installing the Plugin

Although the plugin's shared library is distributed with MariaDB by default, the plugin is not actually installed by MariaDB by default. There are two methods that can be used to install the plugin with MariaDB.

The first method can be used to install the plugin without restarting the server. You can install the plugin dynamically by executing or :

The second method can be used to tell the server to load the plugin when it starts up. The plugin can be installed this way by providing the or the options. This can be specified as a command-line argument to mariadbd, or it can be specified in a relevant server in an :

Uninstalling the Plugin

You can uninstall the plugin dynamically by executing or :

If you installed the plugin by providing the or the options in a relevant server in an , then those options should be removed to prevent the plugin from being loaded the next time the server is restarted.

Example

When creating a new password, if the criteria are not met, the following error is returned:

Known Issues

System Variables

simple_password_check_digits

• Description: A password must contain at least this many digits.

• Command line: --simple-password-check-digits=#

• Scope: Global

• Dynamic: Yes

simple_password_check_letters_same_case

• Description: A password must contain at least this many upper-case and this many lower-case letters.

• Command line: --simple-password-check-letters-same-case=#

• Scope: Global

• Dynamic: Yes

simple_password_check_minimal_length

• Description: A password must contain at least this many characters.

• Command line: --simple-password-check-minimal-length=#

• Scope: Global

• Dynamic: Yes

simple_password_check_other_characters

• Description: A password must contain at least this many characters that are neither digits nor letters.

• Command line: --simple-password-check-other-characters=#

• Scope: Global

• Dynamic: Yes

Options

simple_password_check

• Description: Controls how the server should treat the plugin when the server starts up.

  • Valid values are:

    • OFF - Disables the plugin without removing it from the table.

See Also

• - use the Cracklib password-strength checking library

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