Mastodawn

EFF Dice-Generated Passphrases | Electronic Frontier Foundation

This is really good for encrypted content such as a hard drive, password vault or gpg key

If you haven’t got any dice handy you can use random.org to generate the numbers for you. Or even select a set of words from the list

select a set of words from the list

I would be very careful doing this. It is very easy to introduce significant bias. Humans are terrible at picking random numbers.

If you can’t find dice I would recommend:

Having a computer pick random items for you.

Renumber the list into binary and flip a coin 12 times for each word. (This results in a slightly shorter word list but should be string enough).

I meant use random.org select the words directly rather than go through the steps of getting numbers and then lookup.

I get the bias. A big weakness in the one time pads from WW2 was the word callers putting words back they thought were too frequent :)