This is a pre-production deployment of Warehouse. Changes made here affect the production instance of PyPI (
Help us improve Python packaging - Donate today!

Pure Python implementation of Skein and Threefish

Project Description

# geesefly Mirror

This is my mirror of Jonathan Bowman’s, and made available in pip.

## Installation

To install from pip:

$ pip install geesefly

## About is a pure Python implementation of the Skein hash function and Threefish tweakable block cipher. It also includes a pseudo-random number generator based on Skein, and Cipher-Block Chaining (CBC) based functionality for encrypting variable-length data. is slow. If you want a high-performance Python implementation of Skein and Threefish, I highly recommend PySkein, available at

In PySkein, the heavy lifting is done in compiled C, and hashes data at a much faster rate than

In contrast, this module is written in pure Python. While slow, it is useful for applications where compiling a Python C extension is unfeasible, such as Google’s App Engine.

You also may find the code helpful in understanding Skein and Threefish. works with Python version 2.5 or later. This includes version 3 and up.

Skein is a hash function submitted to NIST for their cryptographic hash algorithm competition. Skein is designed by Niels Ferguson, Stefan Lucks, Bruce Schneier, Doug Whiting, Mihir Bellare, Tadayoshi Kohno, Jon Callas, and Jesse Walker

More information is available at

Release History

Release History

This version
History Node


History Node


Download Files

Download Files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
geesefly-0.4.1-py2-none-any.whl (14.8 kB) Copy SHA256 Checksum SHA256 2.7 Wheel Jul 29, 2016
geesefly-0.4.1.tar.gz (9.0 kB) Copy SHA256 Checksum SHA256 Source Jul 29, 2016

Supported By

WebFaction WebFaction Technical Writing Elastic Elastic Search Pingdom Pingdom Monitoring Dyn Dyn DNS Sentry Sentry Error Logging CloudAMQP CloudAMQP RabbitMQ Heroku Heroku PaaS Kabu Creative Kabu Creative UX & Design Fastly Fastly CDN DigiCert DigiCert EV Certificate Rackspace Rackspace Cloud Servers DreamHost DreamHost Log Hosting