CSpace provides a platform for secure, decentralized, user-to-user communication over the internet. The driving idea behind the CSpace platform is to provide a connect(user,service) primitive, similar to the sockets API connect(ip,port). Applications built on top of CSpace can simply invoke connect(user,service) to establish a connection. The CSpace platform will take care of locating the user and creating a secure, nat/firewall friendly connection. Thus the application developers are relieved of the burden of connection establishment, and can focus on the application-level logic!

CSpace is developed in Python. It uses OpenSSL for crypto, and Qt for the GUI. CSpace is licensed under the GPL.

What applications are available now?
Text Chat (who needs OTR, when you have security built from the ground up!)
File Transfer
Remote Desktop (based on TightVNC)