View source for Private peer-to-peer

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'''Private peer-to-peer''' (P2P) systems are [[Peer-to-peer|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 [[Password|password]]s or [[Key (cryptography)|cryptographic keys]] with friends to form a decentralized network. Private peer-to-peer systems can be divided into [[Friend-to-friend|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 [[Software:WASTE|WASTE]], can be configured to create either group-based or F2F networks.<ref>{{Cite book|last1=Barroso|first1=Ana|last2=Hollick|first2=Matthias|title=2015 IEEE 40th Conference on Local Computer Networks (LCN) |chapter=Performance evaluation of delay-tolerant wireless friend-to-friend networks for undetectable communication |date=2015|publisher=IEEE|pages=474–477|doi=10.1109/lcn.2015.7366356|isbn=9781467367707|s2cid=15662992}}</ref>

==Software list==
*Direct Connect - file sharing and chat using private hubs
*[[Software:GigaTribe|GigaTribe]] - a private community-oriented file-sharing program
*[[Software:Retroshare|Retroshare]] - a private F2F system based on PGP, implementing [[Software:Turtle F2F|Turtle F2F]] file sharing.
*[[Software:N2n|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 [[Organization:University of Cambridge|University of Cambridge]].<ref>{{cite thesis|title=Towards a worldwide storage infrastructure|author=Julien Quintard|date=12 June 2012|publisher=University of Cambridge|doi=10.17863/CAM.16373|url=http://www.dspace.cam.ac.uk/handle/1810/243442|access-date=18 January 2015|archive-date=5 February 2022|archive-url=https://web.archive.org/web/20220205033002/https://www.repository.cam.ac.uk/handle/1810/243442|type=Thesis|url-status=live}}</ref>
*[[Software:Madster|Madster]] (formerly Aimster) - early P2P software that used a buddy list to restrict sharing
*Groove - a corporate [[Groupware|groupware]] software based on P2P technology

*[[Software:Turtle F2F|Turtle F2F]] - instant messaging and file sharing with private connections only
*[[Software:WASTE|WASTE]] - private P2P software suitable for groups of 10 to 50 users

==See also==
*[[Friend-to-friend]]
*[[Darknet]]
*[[Social:LAN messenger|LAN messenger]]
*[[Social:Social VPN|Social VPN]]

==References==
{{Reflist}}
*[http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.101.921 How to disappear completely: A survey of private peer-to-peer networks.] SPACE 2007 workshop, July 2007. 
*[http://www.furorteutonicus.eu/2012/02/25/comparison-of-p2p-file-sharing-tools-for-lan-parties/ Comparison of P2P file sharing tools for LAN parties.]

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[[Category:File sharing]]
[[Category:Peer-to-peer]]

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