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Private peer-to-peer (P2P) systems are peer-to-peer (P2P) systems that allow only mutually trusted peers to participate. This can be achieved by using a central server such as a Direct Connect hub to authenticate clients. Alternatively, users can exchange passwords or cryptographic keys with friends to form a decentralized network. Private peer-to-peer systems can be divided into friend-to-friend (F2F) and group-based systems. Friend-to-friend systems only allow connections between users who know one another, but may also provide automatic anonymous forwarding. Group-based systems allow any user to connect to any other, and thus they cannot grow in size without compromising their users' privacy. Some software, such as WASTE, can be configured to create either group-based or F2F networks.

Software list

• Direct Connect - file sharing and chat using private hubs
• GigaTribe - a private community-oriented file-sharing program
• Retroshare - a private F2F system based on PGP, implementing Turtle F2F file sharing.
• n2n - a peer-to-peer VPN software

The following software titles have been discontinued.

• Infinit - file sharing app with local encryption based on research made at the University of Cambridge.
• Madster (formerly Aimster) - early P2P software that used a buddy list to restrict sharing
• Groove - a corporate groupware software based on P2P technology

• Turtle F2F - instant messaging and file sharing with private connections only
• WASTE - private P2P software suitable for groups of 10 to 50 users

See also

• Friend-to-friend
• Darknet
• LAN messenger
• Social VPN

References

1. Barroso, Ana; Hollick, Matthias (2015). "Performance evaluation of delay-tolerant wireless friend-to-friend networks for undetectable communication". 2015 IEEE 40th Conference on Local Computer Networks (LCN). IEEE. pp. 474–477. doi:10.1109/lcn.2015.7366356. ISBN 9781467367707. S2CID 15662992.
2. Julien Quintard (12 June 2012). Towards a worldwide storage infrastructure (Thesis). University of Cambridge. doi:10.17863/CAM.16373. Archived from the original on 5 February 2022. Retrieved 18 January 2015.

• How to disappear completely: A survey of private peer-to-peer networks. SPACE 2007 workshop, July 2007.
• Comparison of P2P file sharing tools for LAN parties.

• File sharing
• Peer-to-peer