System Security Management,
GNUnet is a peer-to-peer framework with focus on providing security. All link-to-link messages in the network are confidential and authenticated. The framework provides a transport abstraction layer and can currently encapsulate the peer-to-peer traffic in UDP, TCP, or SMTP messages. GNUnet supports accounting to provide contributing nodes with better service. The primary service build on top of the core GNUnet framework is anonymous file sharing.