2008-06-11 19:40:55 +00:00
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ANNOUNCING Allmydata.org "Tahoe", the Least-Authority Filesystem, v1.1
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2007-06-11 16:21:42 +00:00
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2008-06-11 21:32:02 +00:00
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We are pleased to announce the release of version 1.1.0 of the "Tahoe"
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2008-03-26 01:28:00 +00:00
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Least Authority Filesystem.
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2007-06-11 16:21:42 +00:00
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2008-03-26 01:28:00 +00:00
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The "Tahoe" Least Authority Filesystem is a secure, decentralized,
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fault-tolerant filesystem. All of the source code is available under
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a Free Software, Open Source licence (or two).
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2007-08-23 20:51:41 +00:00
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2008-01-08 18:01:44 +00:00
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This filesystem is encrypted and distributed over multiple peers in
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2008-03-26 01:28:00 +00:00
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such a way it continues to function even when some of the peers are
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unavailable, malfunctioning, or malicious.
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2007-08-23 20:51:41 +00:00
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2008-03-26 01:28:00 +00:00
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A one-page explanation of the security and fault-tolerance properties
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that it offers is visible at:
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2007-09-24 21:32:31 +00:00
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2008-03-13 18:43:26 +00:00
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http://allmydata.org/source/tahoe/trunk/docs/about.html
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2008-02-14 00:43:02 +00:00
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2008-03-26 01:28:00 +00:00
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This is the successor to Allmydata.org "Tahoe" Least Authority
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2008-06-11 19:40:55 +00:00
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Filesystem v1.0, which was released March 25, 2008 [1]. This release
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fixes several serious issues in Tahoe v1.0, and improves the user
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interfaces. See the known_issues.txt file [2] and the NEWS file [3]
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for details.
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2008-02-14 00:43:02 +00:00
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2008-02-14 16:00:26 +00:00
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2008-06-11 19:40:55 +00:00
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COMPATIBILITY
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2008-02-14 00:43:02 +00:00
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2008-06-11 19:52:34 +00:00
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The version 1 branch of Tahoe is used as the basis of the consumer
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backup product from Allmydata, Inc. -- http://allmydata.com .
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2008-06-11 19:40:55 +00:00
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Tahoe v1.1 is fully compatible with Tahoe v1.0. v1.1 clients produce
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files which can be read by v1.0 clients. v1.1 clients can read files
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produced by clients of all versions >= v0.8. v1.1 servers can serve
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v1.0 clients and v1.1 clients can use v1.0 servers.
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2008-02-16 00:35:33 +00:00
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2008-06-11 19:52:34 +00:00
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This is the second release in the version 1 series. We believe that
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this version of Tahoe is stable enough to rely on as a permanent store
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of valuable data. The version 1 branch of Tahoe will be actively
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supported and maintained for the forseeable future, and future
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versions of Tahoe will retain the ability to read files and
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directories produced by Tahoe v1 for the forseeable future.
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2007-06-11 16:21:42 +00:00
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WHAT IS IT GOOD FOR?
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2007-04-19 20:55:13 +00:00
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2008-01-08 18:01:44 +00:00
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With Tahoe, you can distribute your filesystem across a set of
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computers, such that if some of the computers fail or turn out to be
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malicious, the filesystem continues to work from the remaining
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computers. You can also share your files with other users, using a
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2008-06-11 19:40:55 +00:00
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cryptographic capability-based access control scheme.
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2007-07-23 01:21:29 +00:00
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2008-06-11 19:40:55 +00:00
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Because this software is the product of less than two years of active
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development, we do not categorically recommend it for the storage of
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data which is extremely confidential or precious. However, we believe
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that the combination of erasure coding, strong encryption, and careful
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engineering makes the use of this software a much safer alternative
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than common alternatives, such as RAID, or traditional backup onto a
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remote server, removable drive, or tape.
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2008-03-13 18:43:26 +00:00
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2008-06-11 19:40:55 +00:00
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This software comes with extensive unit tests [4], and there are no
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2008-03-13 18:43:26 +00:00
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known security flaws which would compromise confidentiality or data
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2008-06-11 19:40:55 +00:00
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integrity. (For all currently known issues please see the
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known_issues.txt file [2].)
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2007-08-07 21:23:23 +00:00
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2008-06-11 19:40:55 +00:00
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This release of Tahoe is suitable for the "friendnet" use case [5] --
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2008-02-14 16:00:26 +00:00
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it is easy to create a filesystem spread over the computers of you and
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your friends so that you can share files and disk space with one
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2008-01-08 18:01:44 +00:00
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another.
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2007-04-19 20:55:13 +00:00
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2007-05-01 15:26:47 +00:00
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LICENCE
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2008-01-08 18:01:44 +00:00
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You may use this package under the GNU General Public License, version
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2008-06-11 23:02:56 +00:00
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2 or, at your option, any later version. See the file "COPYING.GPL"
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[6] for the terms of the GNU General Public License, version 2.
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You may use this package under the Transitive Grace Period Public
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Licence, version 1.0. The Transitive Grace Period Public Licence says
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that you may distribute proprietary derived works of Tahoe without
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releasing the source code of that derived work for up to twelve
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months, after which time you are obligated to release the source code
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2008-06-19 19:26:19 +00:00
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of the derived work under the Transitive Grace Period Public
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Licence. See the file "COPYING.TGPPL.html" [7] for the terms of the
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Transitive Grace Period Public Licence, version 1.0.
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2007-08-17 19:25:09 +00:00
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2008-01-08 18:01:44 +00:00
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(You may choose to use this package under the terms of either licence,
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at your option.)
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2007-08-17 19:25:09 +00:00
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2008-01-08 18:01:44 +00:00
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INSTALLATION
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2007-07-05 01:59:26 +00:00
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2008-01-08 18:01:44 +00:00
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Tahoe works on Linux, Mac OS X, Windows, Cygwin, and Solaris. For
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2008-06-11 19:40:55 +00:00
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installation instructions please see "docs/install.html" [8].
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2007-04-19 20:55:13 +00:00
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2007-04-20 00:30:06 +00:00
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HACKING AND COMMUNITY
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2007-04-19 20:55:13 +00:00
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2008-06-11 19:40:55 +00:00
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Please join us on the mailing list [9] to discuss uses of Tahoe.
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2008-02-14 16:00:26 +00:00
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Patches that extend and improve Tahoe are gratefully accepted -- the
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2008-06-11 19:40:55 +00:00
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RoadMap page [10] shows the next improvements that we plan to make and
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CREDITS [11] lists the names of people who've contributed to the
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project. The wiki Dev page [12] contains resources for hackers.
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2007-09-18 22:04:30 +00:00
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SPONSORSHIP
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2007-07-05 01:59:26 +00:00
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2008-06-11 19:40:55 +00:00
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Tahoe is sponsored by Allmydata, Inc. [13], a provider of consumer
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2007-07-05 01:59:26 +00:00
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backup services. Allmydata, Inc. contributes hardware, software,
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ideas, bug reports, suggestions, demands, and money (employing several
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2008-03-26 01:28:00 +00:00
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allmydata.org Tahoe hackers and instructing them to spend part of
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their work time on this free-software project). We are eternally
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grateful!
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2007-06-11 16:21:42 +00:00
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2007-10-15 21:56:02 +00:00
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Zooko O'Whielacronx
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on behalf of the allmydata.org team
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2008-06-11 19:40:55 +00:00
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June 11, 2008
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2008-03-26 01:28:00 +00:00
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San Francisco, California, USA
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2008-01-08 18:01:44 +00:00
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2008-06-11 19:40:55 +00:00
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[1] http://allmydata.org/trac/tahoe/browser/relnotes.txt?rev=2348
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[2] http://allmydata.org/trac/tahoe/browser/docs/known_issues.txt
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[3] http://allmydata.org/trac/tahoe/browser/docs/NEWS
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[4] http://allmydata.org/trac/tahoe/wiki/Dev
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[5] http://allmydata.org/trac/tahoe/wiki/UseCases
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[6] http://allmydata.org/trac/tahoe/browser/COPYING.GPL
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[7] http://allmydata.org/source/tahoe/trunk/COPYING.TGPPL.html
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[8] http://allmydata.org/source/tahoe/trunk/docs/install.html
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[9] http://allmydata.org/cgi-bin/mailman/listinfo/tahoe-dev
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[10] http://allmydata.org/trac/tahoe/roadmap
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[11] http://allmydata.org/trac/tahoe/browser/CREDITS?rev=2677
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[12] http://allmydata.org/trac/tahoe/wiki/Dev
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[13] http://allmydata.com
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