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Quantify security strength from entropy and lifetime
Entropy or randomness is a quantitative measure of security strength for various types of passcodes, but in current times with digital technology, breaches, and cracking tools it seems that lifetime should also be a factor in determining “strength”. For example, a low entropy password with a short lifetime may be as strong as a high entropy password that is seldom replaced.
Is there a quantitative approach to determine passcode strength using both entropy and time?
