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Updated Checkers, explained (markdown)

Bee 2020-09-05 17:42:02 +01:00
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Checkers,-explained.md

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We use multiple different checkers to check for when something becomes plaintext.
# Language Checking # Language Checking
Our language checker is called `brandon`, since we couldn't think of a better name. Our language checker is called `brandon`, since we couldn't think of a better name.
@ -43,8 +45,18 @@ Stop words or top 1k words uses a small threshold than dictionary checker.
You can see our thresholds [here](https://github.com/Ciphey/CipheyDists/blob/master/cipheydists/brandon/english.json). You can see our thresholds [here](https://github.com/Ciphey/CipheyDists/blob/master/cipheydists/brandon/english.json).
**We are welcome to feedback about this approach, as we are not experts in this area.**
# JSON # JSON
The JSON checker works by running `json.loads(ctext)` on the ciphertext. If it succeeds, it is JSON and returns True.
# Regex # Regex
The Regex checker runs a Regex against the ctext. By default we check for CTF flags. These include:
1. HTB{*.}
2. THM{*.}
3. FLAG{*.}
4. CTF{*.}
Case insensitive.
# Entropy (coming soon) The user can specify different Regex in the program arguments or using the config file.
# Entropy (coming soon)
We plan to add an entropy checker to see if the data is ordered or not. We have the code already, but we need to implement a feature that asks the user if the output is correct else we may end up with many false positives.