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https://github.com/karma9874/ctf-cryptotool

CTF-CryptoTool is a tool written in python, for breaking crypto text of CTF challenges. It tries to decode the cipher by bruteforcing it with all known cipher decoding methods easily. Also works for the cipher which does not have a key.
https://github.com/karma9874/ctf-cryptotool

cipher crypto ctf ctf-tools decoder decoding hacktoberfest hacktoberfest2021

Last synced: 6 days ago
JSON representation

Host: GitHub
URL: https://github.com/karma9874/ctf-cryptotool
Owner: karma9874
License: mit
Created: 2020-04-21T13:36:49.000Z (over 4 years ago)
Default Branch: master
Last Pushed: 2024-04-07T07:13:52.000Z (7 months ago)
Last Synced: 2024-05-02T02:21:11.087Z (7 months ago)
Topics: cipher, crypto, ctf, ctf-tools, decoder, decoding, hacktoberfest, hacktoberfest2021
Language: Python
Homepage:
Size: 1.38 MB
Stars: 55
Watchers: 3
Forks: 24
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE.txt

Awesome Lists containing this project

README

        # CTF-CryptoTool

[![MIT License](https://img.shields.io/badge/license-MIT-blue.svg)](https://opensource.org/licenses/MIT) 

[![Twitter Follow](https://img.shields.io/twitter/follow/karma9874?label=Follow&style=social)](https://twitter.com/karma9874)

[![GitHub followers](https://img.shields.io/github/followers/karma9874?label=Follow&style=social)](https://github.com/karma9874)

CTF-CryptoTool is a tool written in python, for breaking crypto text of CTF challenges. It tries to decode the cipher by bruteforcing it with all known cipher decoding methods easily. Also works for the cipher which does not have a key.

| Known Ciphers  | Known Encodings | Known Obfuscator |

| ------------- |:-------------:| :-----:|

| Affine Cipher | Base64 | Brainfuck |

| Ceaser Cipher      | Base32      |   JSFuck |

| Vigenere Cipher | Base85      |     Ook |

| Autokey Cipher | Binary      |    

|Atbash Cipher | Octal      |    

| Gronsfeld Cipher | Hex      |     

| Railfence Cipher | Morse      |     

| Keyboard Shift | Rot      |     

| Morbit Cipher| Base58 |

| Chuck Norris Unary Code | Base91 |

## Screenshots

![CTF-CryptoTool](https://github.com/karma9874/CTF-CryptoTool/blob/master/Screenshots/1.PNG)

## Installation

This tool will run on python3

``` 

git clone https://github.com/karma9874/CTF-CryptoTool.git

cd CTF-CryptoTool 

pip3 install -r requirements.txt

  ```

## Usage 

` Just throw the cipher to it `

``` 

python3 decoder.py 

Enter the text  : Feed the cipher text

Enter Key       : Enter key if you know any (optional)

Enter flag 	    : Enter some letters of the flag if you know (optional)

				Eg: While playing picoCTF you can enter the flag as picoCTF so it can match that text with the ouputs otherwise you may get much more bogus strings   	

```

## Reference

[python_cryptanalysis](https://github.com/jameslyons/python_cryptanalysis)