Unycoin

This project aims to be a pure python implementation of a cryptocurrency similar to Bitcoin as it was first introduced by Satoshi Nakamoto's whitepaper : Bitcoin: A Peer-to-Peer Electronic Cash System.

Summary

• Disclaimer
  • Security
  • Efficiency
• Description
  • What about this project ?
  • How it works
  • Why python ?
• Structure
  • Cryptography
  • Database
  • Ledger
  • Network
  • Wallet
• Releases
• License
• Credits

Disclaimer

• This implementation is made for educational purposes only. Do NOT use this program in a real world scenario as it is considered insecure in regard of today's security standards.

• DON'T RULE YOUR OWN CRYPTO : The main reason I implemented this cryptographic primitives from scratch is to understand how they are made and how they work. If you want secure cryptographic protocols, you should use already existing libraries that have been reviewed for years by many experts and the community.

Security

All cryptographic protocols and functions implemented in this project follows all rules specified in their description. ECDSA is protected against side-channel attack by using the Montgomery Ladder as the algorithm for point multiplications over Elliptic Curves.

Efficiency

As this software is written in pure python, every cryptographic protocol implemented here is rather inefficient compared to the same one in another language like C++. However, when it comes to more usual tasks like networks, python is good enough.

Description

What about this project

How it works

Why python ?

I choosed python as the programming language for this project for the two following reasons :

• Simplicity ~ Python is a programming language that is easy to use and more importantly, easy to read and to understand.

• Originality ~ Most of today's cyptocurrencies are built in C/C++ for better performances and enhanced security.

Structure

Cryptography

This module implements all cryptographic protocols and primitives that are necessary to ensure cryptocurrency's security and integrity. All protocols were implemented from scratch in pure python based on their official description. Here is the implemented ones :

• Base 58
• Ecdsa
• AES
• Bloom filter
• Murmur hash
• Merkle tree
• Sparse merkle tree
• Ripemd160
• Sha256

Database

This module aims to store the blockchain and all according data into a structured database using Sqlite3.

Ledger

Network

Wallet

License

This project is released under the MIT license.

Releases

To run the program without editing the source code or building it yourself, go see the Releases.

Credits

• Léo Raclet : Creator of the project.