Retroshare在你和朋友间建立加密通信连接。没有人可以监控你。Retroshare完全是去中心化的，也就是说它没有中心服务器。 retorshare完全开放源代码，免费自由使用。无需付费，没有广告，也没有服务条款！

Retroshare creates encrypted connections to your friends. Nobody can spy on you. Retroshare is completely decentralized. This means there are no central servers. It is entirely Open-Source and free. There are no costs, no ads and no Terms of Service.

http://retroshare.net/