An essential utility, passgen was written in response to the lack of a useful password generator, which should be standard issue for any multi-user machine. passgen generates passwords which comply to security stds recommended by CERT, NIST and others.
Designed to use what is known about users via the /etc/passwd file on unix/linux systems to generate a dynamic dictionary or csv file of more accurate guesses as to what their possible password may be, to look for bad password protection practices.