Retroshare 0.4.10a

Retroshare is a cross-platform private P2P sharing program. It lets you share securely your friends, using a web-of-trust to authenticate peers and OpenSSL to encrypt all communication. RetroShare provides filesharing, chat, messages and channels. 

Features:
•  A Private Peer to Peer Network which allows you to share information with only the people you want to. 
•  Reliable Identification and Authentication of your friends. 
•  Plus an Introduction Scheme which connects you to the friends of your friends, and facilitates network growth. 
•  Encrypted Communication, ensuring all shared information is known only to you and your peers. 
•  A Communication Platform which can potentially support services such as Secure Email, File Sharing, Video or Voice over IP and Messaging 
•  A Decentralised Social Sharing Network designed **For the People** 
•  With no dependancies on any corporate system or central servers.