Can I use a computer to generate Diceware passphrases?
Generating truly random numbers using a computer is very tricky. The so called random number generators that come with most programming libraries are nowhere near good enough. For most users dice is by far a better way to select passphrase words. However if you do know what you are doing, have access to a strong method for generating random numbers and really need to generate passphrases using a computer, then, to insure a uniform distribution of words, it is best to using a list of words that is a whole power of two in length.