Document password recovery Let's do the math: How long does it take for a pure brute-force hack
Drag to the length you want to measure. It's okay if you can't remember the exact number; choosing a longer one is just right for the worst-case scenario.
The numbers in the logo indicate how many options each person has. Each time the range is expanded, the total number of combinations will increase exponentially.
estimation results
Total number of passwords to try
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This is just the worst-case scenario of "pure violence"
Pure violence involves trying all possibilities one by one, the dumbest and slowest. We actually run the dictionary and masking rules first—going through the hundreds of millions of combinations that most closely resemble real-person passwords, and common weak passwords often don't have to wait that long at all.
Download the software yourself vs. leave it to us
| Comparison term | Download your own cracking software | Leave it to us |
|---|---|---|
| computing power | A home computer usually only has an integrated graphics card | Multiple GPU decryptors running the same task at the same time |
| Password Dictionary | I randomly found hundreds of thousands of entries online, and a whole bunch of duplicates and invalid ones | Dictionaries accumulated and cleaned over the years, categorized according to usage habits |
| cracking strategy | They will only try one by one from beginning to end | First the dictionary, then the mask, then the full amount, a multi-level strategy is being implemented layer by layer |
| Can I keep running | The computer needs to be on all the time; shutting it down or restarting it will be all for naught | It runs 24/7 on the server; it won't be affected even if you turn off your computer |
| Possibility of unraveling | It's all down to luck; a slightly longer password is practically out of the question | First, cover the most likely combination; short passwords often yield results within tens of minutes |
| Start-up cost | Installing drivers, configuring command lines, and reporting errors are all ignored | Just upload the file, and you'll be notified of the results |
About this calculator
- The speed benchmark is based on publicly available test data from a single RTX 3080 graphics card and has been conservatively converted. Results may differ depending on the machine model.
- The time is an estimate of "trying half the combination on average". If you're lucky, you'll hit it earlier, while if you're unlucky, you'll have to complete one round.
- The numbers here are estimated based on pure violence. In practice, a dictionary and mask are used first. Common weak passwords can often be generated in a few minutes, so you don't need to wait that long.
- The same file can have vastly different encrypted versions: a Word document can differ tens of thousands of times between the 2003 and 2013 versions.
Don't put up with your own computer
It's more meaningful to give us the documents and run through the most likely combinations first than to run through them yourself for a few days at home.
Supports common encryption formats such as PDF, Office, ZIP, RAR, and 7Z
How hard is this file format to crack
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The speed of different formats can vary by tens of thousands of times: old formats are almost unprotected, while new formats deliberately make verification very slow to slow down cracking. This is why the same password can be cracked in tens of minutes by someone else, but you can run for days without any results.