Dictionary-based password generator.
Script reads dict word lists and generates word-based passwords. Uses dictionaries from /usr/share/dict by default. Inspired by Xkcd comic.
Program also prints how many words have been read, and indicates estimated password space size in bits.
Using just four words from default English dictionary of ~50k words will give approximately 90 bits of entropy. Lucky speakers of languages with rich inflection like Polish (over 3 million word variants) can easily up this to over 110 bits of entropy.