Calculates the relative strength of a password. This is accomplished by using several techniques. Primarily this relies on letter trigraphs, which check each set of 3 characters in a given password. This also calculates the entropy bits based on Claude Shannon's technique on determining the number of bits required to represent a set of characters and multiplying it by the length of the password. There is also a check to see if a password is contained in a list of common passwords.
As a bonus there's also a "Search Space" or (Total Possible Combinations) Calculator, inspired by GRC's Interactive Brute Force Password “Search Space” Calculator.
Try some of the calculations from Password.Depot.de if you'd like.
Side note: Password.Depot.de's calculation for 94^9 is incorrect. Google it lol
Custom Scenario = Guesses Per Second.GRC's Online Attack Example Scenario = 1 Thousand Guesses Per Second.
Password-Depot.de Example Scenario = 2 Billion Guesses Per Second.
GRC's Offline Fast Attack Example Scenario = 100 Billion Guesses Per Second.
Distributed.net May 8, 2012 Scenario = 800 Billion Guesses Per Second.
GRC's Massive Cracking Array Example Scenario = 100 Trillion Guesses Per Second.
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