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Logo of Tahoe-LAFS
Initial release May 2, 2007[1]
Stable release 1.10[2] / 1 May 2013 (2013-05-01)
Development status Active
Written in Python
Operating system Cross-platform
Available in English
Type Cloud computing
License GNU GPL 2+ and other[3]
Website .orgtahoe-lafs

Tahoe-LAFS (Tahoe Least-Authority File Store [2]) is a free and open, secure, decentralized, fault-tolerant, peer-to-peer distributed data store and distributed file system.[4][5] It can be used as an online backup system, or to serve as a file or web host similar to Freenet,[6] depending on the front-end used to insert and access files in the Tahoe system. Tahoe can also be used in a RAID-like manner to use multiple disks to make a single large RAIN[7] pool of reliable data storage.

The system is designed and implemented around the "principle of least authority" (POLA). Strict adherence to this convention is enabled by the use of cryptographic capabilities which grant the minimal set of privileges necessary to accomplish a given task to requesting agents. A RAIN array acts as storage — these servers do not need to be trusted for confidentiality or integrity of the stored data.

Zooko Wilcox-O'Hearn is one of the developers.[8][9]


  • Fork 1
  • See also 2
  • Notes 3
  • References 4
  • External links 5


A patched Tahoe-LAFS exist (since 2011) made to run on the anonymous network I2P, with support for multiple introducers. There is also a build for Windows.[10] It must be downloaded from inside of the I2P network.[11]

See also


  1. ^ "Tahoe-LAFS Documentation". Retrieved 2013-05-01. 
  2. ^ a b "Tahoe-LAFS wiki". Retrieved 2014-12-01. 
  3. ^
  4. ^ Ars Technica
  5. ^ Monteiro, Julian Geraldes (16 November 2010). "Modeling and Analysis of Reliable Peer-to-Peer Storage Systems". Sophia Antipolis:  
  6. ^ Zooko's blog, hosted on Tahoe
  7. ^ Redundant array of independent nodes
  8. ^ Wilcox-O'Hearn, Zooko, ANNOUNCING "Tahoe", the Least-Authority Filesystem, v1.3, retrieved 20 April 2009
  9. ^ "Why Whack-a-Tard won't save music". The Register. April 22, 2009. 
  10. ^ Foolscap & Tahoe-LAFS patched for use on I2P (with support for multiple introducers). 2013.
  11. ^ http://killyourtv.i2p/tahoe-lafs/ URL to inside I2P


  • Haver, Eirik; Melvold, Eivind and Ruud, Pål (23 September 2011). "Cloud Storage Vault". Institutt for telematikk. pp. 2–3, 20–21 80–80. Retrieved 15 December 2012. 
  • Arjan Peddemors, Christiaan Kuun, Rogier Spoor, Paul Dekkers and Christiaan den Besten (29 June 2011). "Survey of Technologies for Wide Area Distributed Storage". p. 17. Retrieved 15 December 2012. 
  • Huchton, Scott (March 2011). "Secure mobile distributed file system (MDFS)". Monterey, California. Naval Postgraduate School. pp. 8–9. Retrieved 15 December 2012. 
  • Lee, Changhoon. Secure and trust computing, data management and applications : STA 2011 workshops: IWCS 2011 and STAVE 2011, Loutraki, Greece, June 28 - 30, 2011. Berlin: Springer. pp. 192–193.  
  • Renata Spolon Lobato; Renato Dulizio Martins (2011). "Avaliacao De Desempenho De Sistemas De Arquivos Distribuidos" (in Portuguese). São José do Rio Preto. pp. 10–12. Retrieved 15 December 2012. 

External links

  • Official website
  • Tahoe – The Least-Authority Filesystem
  • Transitive Grace Period Public Licence ("TGPPL") v. 1.0

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