Create strong passphrases with EFF's new random number generators! This page includes information about passwords, different wordlists, and EFF's suggested method for passphrase generation. Use the directions below with any set of dice.And now, a message from internationally renowned security...
This is really good for encrypted content such as a hard drive, password vault or gpg key
Yes, but when the list is long enough and you have enough words, it is to difficult to guess.
Think about it. The list of all possible characters is also known, still with enough length and randomness it becomes too difficult to guess too.