Creating Strong But Memorable Passwords with Inkblots
Inkblot passwords solve most of these problems by helping users create a secure, personal password that is easy to remember. The user is presented with a sequence of random inkblots. Each should remind the user of a word — a butterfly or a pumpkin, for example. Such personalization leads to passwords with high entropy, that is, passwords that are difficult to attack by guessing, whether by knowing the target of the attack or by using a dictionary.