Decentralized P2P-based Online Social Network

Example(s):
- PeerSoN,
- Priv.io,
- Safebook,
- …
Counter-Example(s):
- a Decentralized P2P-based Cloud System,
- a Centralized Network System.
See: Decentralized Network, Decentralized Computing System, Decentralized Application, Distributed Network, Decentralized Clinical Trial, Online Social Network.

References

(Muller et al., 2017) ⇒ Andre Muller, Andre Ludwig, and Bogdan Franczyk (2017). "Data Security In Decentralized Cloud Systems – System Comparison, Requirements Analysis And Organizational Levels". In: SpringerOpen - Journal of Cloud Computing.
- QUOTE: The results of the comparison are summarized in Fig. 1. The solutions of the investigated concepts of PeerSoN (Buchegger et al., 2009), Priv.io (Zhang and Mislove, 2013), Safebook (Cutillo et al., 2011), and SuperNova (Sharma & Datta, 2012) are based on a peer-to-peer approach. The concepts PrPl (Seong et al., 2010), SlopPy (Gambs & Lolive, 2012), and Vis-à-Vis (Shakimov et al., 2011) are based on distributed applications and on server solutions as well as cloud solutions that are self-managed by the user. As a common ground of these concepts, all parties are expected to run and manage their own cloud system. The eight already mentioned systems will now be explained shortly and examined with regard to their currently unsolved problems.

**Figure 1:** Results of the degree of the fulfillment of the system comparison characteristics.

(Buchegger & Datta, 2009) ⇒ (2009, February). "A Case for P2P Infrastructure for Social Networks - Opportunities & Challenges". In: Proceedings of the 2009 Sixth International Conference on Wireless On-Demand Network Systems and Services (WONS) IEEE.
- QUOTE: Centralized web-based social networks do not match the inherent peer-to-peer nature of both social networks themselves and of participatory media creation. By mapping a peer-to-peer application to a peer-to-peer infrastructure, direct connections can be exploited such that locality can be taken into account. This enables peers to be mobile and independent from Internet connectivity. Social networking applications can be run on small devices such as PDAs or phones as well as on home servers or access routers. Peers can carry information for each other in a delay-tolerant fashion and use local access points for local information.