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Real-World Applications of Peer-to-Peer Networks in 2016

Explore the various applications of peer-to-peer networks in 2016, including file sharing, chat tools, synchronization and backup, money transactions, media streaming, and more.

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Real-World Applications of Peer-to-Peer Networks in 2016

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  1. Christian Schindelhauer Technical Faculty Computer-Networks and Telematics University of Freiburg Peer-to-Peer Networks16 P2P in the Wild

  2. Real-World P2P Applicationsin 2016 • File sharing & transmission • Bittorrent, eMule, FastTrack, DirectConnect, Gnutella, Skype, Maidsafe • Chat • Skype, Tonic, OMessenger, PoPNote, LAN Messenger, WireNote, Mossawir LAN Messenger, Squiggle, CDMessenger, Softros LAN Messenger, … • VoIP, Video-Chat • Skype, Zello, Brosix, Google Hangout • Synchronization & backup • Bittorrent Sync, SyncThing • Money • Bitcoin, Maissafe • Software distribution & update • Windows 10 updates, Steam • Anonymize • I2P, Freenet, TorChat, Tribler, Bitmessage, DigitalNote XDN, Osiris, Syndle, Perfect Dark, Netsukuku, DigitalNote XDN, Tahoe-LAFS • Media Streaming • Vuze, Tribler, Miro Media Player, PPLive • Programming platforms, Frameworks • JXTA, GNUNet, Windows Peer Networking • Web search • Yacy, Faroo 2

  3. Synchronization & Backup • Problem • Synchronize two file systems • Differential backups • Standard solutions • rsync • network protocol and tool • transmits only the differences of files • for upholding copies of file systems • no versioning • Cloud services • e.g. Google drive, Dropbox, BWsync&share, etc • synchronizes directories to server • only differential update • versioning 3

  4. Peer-to-Peer File Synchronization • Idea • rsync but for many peers • Bittorrent Sync • uses Bittorrent for updates • closed group of servers • symmetric cryptography AES-128 • versioning • no conflict handling • SyncThing • open source • secure, authenticated, TLS • versioning • no conflict handling 4

  5. BitCoin • Peer-to-Peer Money transactions • open source digital currency • decentralized currency • Public-key cryptography • Digital signatures • Anonymity if TOR is used • Peer-to-Peer network for transactions • Distributed computation tasks determine the order of transactions 5

  6. Chat Tools • Lots of commercial/open software • Skype, Tonic, OMessenger, PoPNote, LAN Messenger, WireNote, Mossawir LAN Messenger, Squiggle, CDMessenger, Softros LAN Messenger, … • Motivation • Harness the power of the Internet for direct communication • Features • often group features • secure communication • cheap server less solutions 6

  7. File Sharing • Bittorrent • dominates traffic • with DHT or tracker hosts • extra infrastructure for search • eMule, FastTrack, DirectConnect, Gnutella • less traffic since 2003 • security issues • Other P2P tools like Skype • offer also file transmission 7

  8. Media Streaming • A lot of former P2P Streaming • Peercast, peerstreamer, QQLive, Joost, Zattoo, Moved to Client-Server • Octoshape, Zattoo • Survivers: • Bittorrent-related: Vuze, Bittorrent • streamer (p2p radio) • Miro Media Player (malware financed) • Big in China • PPStream, PPTV, Funshion 8

  9. I2P • I2P (Invisible Internet Project) • darknet • anonymous peer-to-peer distribution communication layer • Garlic routing • combining small onions in one message • allows any traditional internet application • email, IRC, file sharing, web hosting, HTTP • File sharing • Bittorrent, iMule, I2Phex • Email • I2P-Bote • Instant Messaging • I2P-Messenger, I2P-Talk 9

  10. Christian Schindelhauer Technical Faculty Computer-Networks and Telematics University of Freiburg Peer-to-Peer Networks16 P2P in the Wild

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