Passwort-Prüfer

Mit diesem kleinen Tool kannst du beliebige Passwörter auf ihre Stärke hin testen. Dabei wird kein Passwort an unsere Server gesendet. Es handelt sich um eine Prüfung mittels JavaScript, welche vollständig auf Clientseite abläuft.
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Der hier verwendete Code

<div id="mitte">
<h1>Passwort-Prüfer</h1>
<p>Gib Dein Passwort einfach in das untere Feld ein, und erhalte blitzschnell ein fundiertes Ergebnis.
</p>
<form name="passwordForm">
Passwort: <input type="text" value="" name="passwd" id="passformInput" size="33" maxlength=""><span id="lengout"></span><br><br>
Passwortst&auml;rke: <input type="text" name="score" size="3" readonly="readonly"> &nbsp; in Worten: <input type="text" name="verdict" size="15" readonly="readonly"><br /><br/>
<textarea name="matchlog" cols="60" readonly="readonly" rows="11"></textarea></form>
<script>
/*
Password Strength Factors and Weightings
password length:
level 0 (3 point): less than 4 characters
level 1 (6 points): between 5 and 7 characters
level 2 (12 points): between 8 and 15 characters
level 3 (18 points): 16 or more characters
letters:
level 0 (0 points): no letters
level 1 (5 points): all letters are lower case
level 2 (7 points): letters are mixed case
numbers:
level 0 (0 points): no numbers exist
level 1 (5 points): one number exists
level 1 (7 points): 3 or more numbers exists
special characters:
level 0 (0 points): no special characters
level 1 (5 points): one special character exists
level 2 (10 points): more than one special character exists
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