4 ms·
Is sharing you password length wise? Knowing the # of chars you have reduced the number of iterations needed to complete a brute force attack. 255! vs 255! / (
by luis8 6y ago
Is sharing you password length wise? Knowing the # of chars you have reduced the number of iterations needed to complete a brute force attack.
255! vs 255! / (255 - 30)!
My math could be off though, i haven't work with factorials since i was in the university
- throwaway744678 6y agoIt's a trick. OP's password is actually 29 chars long, but the attacker will now start at 30 characters, and never brute force the actual password. Nicely played.
- Dylan16807 6y agoI don't think you want a factorial involved. With unknown size, cracking 30 characters takes time proportional to n^30 + n^29 + n^28 etc. Cracking just 30 is proportional to n^30. The difference is negligible. A percent or two.
- luis8 6y agoMy bad, I was thinking in permutations but those does not allow repeated entries. It make sense now, like you said the difference is negligible.