# Cipherkit: a cryptography toolbox made with Python

<img align=”left” src=”docs/img/logo_cipherkit.png”>

A Python package holding classical ciphers and different cryptanalysis tools. For the moment, this package is under heavy development. Some of the features it will include are the following:

• Classical ciphers: atbash, caesar, vigenere, affine…
• Crytanalysis tools: brute force and frequancy analysis
• Language identifier based on dictionaries

Once the package is complete and first versions start releasing, some future implementation would be:

• Work with .txt files
• Steganography algorithms
• Modern non-symmetric ciphers

[](https://www.python.org/) [](https://cipherkit.readthedocs.io/en/latest/?badge=latest) [](https://travis-ci.org/jorgepiloto/cipherkit)

## Why cryptography?

Cryptography is one of the most used sciencies today due to its strong relation with cryptocurrencies, money transactions, online business and others. Most of moder ciphers try to solve the key-exchange problem by using a public/private keys.

Elliptic curves, hash functions, RSA, AES and others may be familiar when we talk about modern cryptography. Their implementation is really smart and at the same time really counter-intuitive. It is not only the process of designing the cipher but also to make as ‘hard’ as possible for cryptanalysists.

Although classical ciphers are just obsolete in termns of security, this package objective is just to have fun with their implementation in a beautiful programming language.

## Books and sources about cryptography

There exist really good books on cryptography history, algorithms and cryptanalysis techniques. Some of them, which were used consulted during the coding phase of this package ares listed down:

• Hacking secret ciphers with Python, AI Sweigart
• The Code Book, Simon Singh
• Boletín Enigma, Arturo Quirantes Sierra
• Cripgrafía sin secretos con Python, David Arboledas

## Installation

`bash pip install cipherkit `

## Documentation

https://cipherkit.readthedocs.io/

## Development

Bug solving, new features and improves are always welcome. This is an opensource project: we want to have fun, learn and improve. For that reason if you have doubts, issues with the package or just want to add a new cipher please follow the following steps:

• Fork cipherkit
• Download and install with pip install -e cipherkit. This wll install the package in editable mode, which will enable you to make code changes and continue while using cipherkit.
• Create a new branch in your local repo, improve the code and start a pull request.
• Celebrate your first contribution.