The Toolkit is a collection of cryptographic algorithms and protocols, implemented for use from Python. The current release is 2.0.1. Among the contents of the package:

• Hash functions: MD2, MD4, RIPEMD, SHA256.
• Block encryption algorithms: AES, ARC2, Blowfish, CAST, DES, Triple-DES, IDEA, RC5....

The Qwt library contains GUI Components and utility classes which are primarily useful for programs with a technical background. Beside a 2D plot widget it provides scales, sliders, dials, compasses, thermometers, wheels and knobs to control or display values, arrays, or ranges of type double....

Hyper Estraier is a full-text search system. It works as with Google, but based on peer-to-peer architecture. Using Hyper Estraier, we can construct a large-scaled search engine with cheap computers.

Litecoin is a peer-to-peer Internet currency that enables instant payments to anyone in the world. It differs from its parent Bitcoin in that can be efficiently mined with consumer-grade hardware. Litecoin provides faster confirmations (targeted at every 2.5 minutes on average) and uses memory-hard, scrypt-based mining to target the CPUs and GPUs most people already have. The Litecoin network is scheduled to produce four times as many currency units as Bitcoin....

BigTable project is meant to research and replicate the features of Google BigTable: A System for Distributed Structured Storage.

Vanubi is a programming editor highly inspired by Emacs but with a more
modern fashion.
It aims to be unobtrusive yet smart, simple yet complete
with the necessary components built in (monolithic), keyboard based with
contextual help, file/directory based (not project based), fast to open for...

GAP is a system for computational discrete algebra, with particular emphasis on Computational Group Theory. GAP provides a programming language, a library of thousands of functions implementing algebraic algorithms written in the GAP language as well as large data libraries of algebraic objects. GAP is used in research and teaching for studying groups and their representations, rings, vector spaces, algebras, combinatorial structures, and more. The system, including source, is distributed freely. You can study and easily modify or extend it for your special use....

Finagle is an asynchronous network stack for the JVM that you can use to build asynchronous Remote Procedure Call (RPC) clients and servers in Java, Scala, or any JVM-hosted language. Finagle provides a rich set of tools that are protocol independent.

OurGrid is a free-to-join peer-to-peer grid that has been in production since December 2004. Anyone can freely and easily join it to gain access to large amounts of computational power and run parallel applications.

The Software Process Dashboard Project is an open-source initiative to create a PSP / TSP support tool.

We feel that the PSP and the TSP are remarkable technologies that can change the face of the software industry, and we share the SEI's zeal to promote their widespread use. We feel that a freely available, powerful support tool could help to remove one of the most significant barriers to PSP / TSP adoption. We therefore aim to develop a world-class tool under the open-source model, and distribute it freely to anyone using the PSP and/or TSP. We feel that this is the least we can do to thank the SEI for developing and distributing these remarkable processes....