Firefox: Passwörter aus Bildern oder Text erstellen
Ein nettes Konzept realisiert das Firefox Plugin ObPwd:
ObPwd is a technique to generate strong text passwords from any web object (selected text, images, and URLs), or your personal digital content - such as your photos, audio/video files, and documents. You must keep your password generating digital object (local files or a pointer to web objects), but do not need to memorize the generated password. Using ObPwd tools, you can always re-create your password from your web content or files whenever you want.