![Ciphey][logo.png]

What is this?

Ciphey is an automated decryption tool. You put in encrypted text, and it outputs the decrypted text.

"What type of encryption?"

That's the point. You don't know. Ciphey will find out and do it for you.

How does it work?

You input a string (via a file, or via a terminal)

Ciphey uses a Deep Neural Network to create a probability distribution (softmax).

This distribution gives how likely it is to be a hash, a basic encoding (hex, binary) or encryption (such as caeser, aes etc) Ciphey will then work through each cipher to try and decode it.

Ciphey uses the language module (app/languageChecker) to determine both the language something is written in, and whether or not that string is valid in that language. So Ciphey would say "hello my name is whiteboard" is English. But it wouldn't say "iaid i2iv ria9i" is a language.

Using the probability distribution, Ciphey calls each object on a new thread. Yes, Ciphey is multi-threaded.

Ciphey is designed from the groundup to be as fast as physically possible. The second it sees the answer, it will stop and return that answer.

What encryptions can Ciphey deal with?

Not just encryptions, but hashes and encodings too.

• Vigenère cipher
• Affine cipher
• Transposition Cipher
• Pig Latin
• Morse Code
• Ascii
• Binary
• Base64
• Hexadecimal
• Caesar Cipher
• Reverse (palindrome)
• Sha512
• MD5
• Sha1
• Sha384
• Sha256

How to install

Just download the GitHub repo.

How to use

pip install -r requirements.txt

And then

python3 main.py -t "Encrypted Text Here"

The internal data packet

This is the data packet specification Ciphey uses. To pass data around the different modules and to language checker, it is neccesary to use an internal data packet.

{"lc": self.lc, "IsPlaintext?": True, "Plaintext": translated, "Cipher": "Caesar", "Extra Information": "The rotation used is {counter}"}

How to contribute

Ciphey is always in need of more decryption tools!

1. Write a decryption tool (this can include encodings such as Base64 too). Make sure it has a decrypt function and is a class.
2. For each possible decryption, call self.lc.checkLanguage(translated) where translated is the decrypted text. Note by default, all decryption modules when instantiated get passed Language Checker (lc). Look at this for example:

    def __init__(self, lc):
        self.lc = lc

3. If result returns True, it is successfully decrypted to English. Return the internal data packet but make sure to change the information to match your decryption module.
4. Create a new object in the parent class. For example, in Encoding the parent is encodingParent.py. Simply add your object to the list of other objects. For encodingParent.py this list of objects is currently:

        self.binary = Binary(self.lc)
        self.base64 = Base64(self.lc)
        self.ascii = Ascii(self.lc)
        self.hex = Hexadecimal(self.lc)
        self.morse = MorseCode(self.lc)

5. It'd be nice if you wrote some tests for it, but if you don't know much about testing no worries! I can write the tests for you :)
6. I'll put your name on the list of contributors!