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The article talks about brute forcing hashes. This is why a good login system will rehash the password multiple times to exponentially increase the length of t
by TomGullen 14y ago
The article talks about brute forcing hashes. This is why a good login system will rehash the password multiple times to exponentially increase the length of time it would take to brute force the passwords.
Accounts could still be cherry picked but it would stop blanket brute forces. This is why BCrypt is good.
- gizmo686 14y agoHow does re-hashing exponentially increase the amount of time brute forcing takes. The time it takes to do N iterations of a hash is N times as long as 1 iteration, so the amount of time it takes to make M guesses is still just N times as long.