Password Checker

Password Checker is a jQuery plugin to detect the strength of the password entered by the user.

Current version: 0.2.1

Usage

Include jQuery and the plugin on your page. Then select a password input and call the passwordChecker method on DOM ready.

<script src="jquery.js"></script>
<script src="jquery.password-checker.js"></script>
<script>
    $(function() {
        $(':password').passwordChecker();
    });
</script>
<input type="password" name="password" />

Settable Options

minlength (default: 6)
Type: Number
The minimum character length.

texts (default: ['Too short', 'Weak', 'Normal', 'Strong', 'Very strong'])
Type: Array
The tip texts of strength level.

colors (default: ['#900', '#960', '#c60', '#993', '#2A7726'])
Type: Array
The colors of strength level.

Theming

If the password checker specific styling is needed, the following CSS class names can be used:

• .password-checker: The outer container of the password checker.
  • .password-checker-text: The text of the password checker.
  • .password-checker-value: The color of the password checker.

Password strength rules

• 1 - short:

  • Less than the specified minimum character length.

• 2 - weak:

  • Greater than the specified minimum character length;
  • Single characters (numbers, lowercase letters, uppercase letters or special characters).

• 3 - normal:

  • Greater than the specified minimum character length;
  • Less than 10 characters two kinds of combinations of character types;
  • More than 10 characters two kinds of combinations of character types, but must include numbers.

• 4 - strong:

  • Greater than the specified minimum character length;
  • 3 kinds of combinations of character types, but must include numbers;
  • More than 10 characters two kinds of combinations of character types, but can not include numbers.
• 5 - very strong:
  • Greater than the specified minimum character length;
  • 4 kinds of combinations of character types;
  • 3 kinds of combinations of character types, but can not include numbers.

Dependencies

Required

jQuery, tested with 1.10.2

License

Copyright (c) 2013 Nicolas Zhao; Licensed MIT