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DESIGN.md
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For notes about internationalization, see README-NLS. For notes about internationalization, see README-NLS.
EncFS is a program which provides an encrypted virtual filesystem for Linux EncFS is a program which provides an encrypted virtual filesystem for Linux
@ -7,7 +6,8 @@ download the latest version of FUSE ). FUSE provides a loadable kernel module
which exports a filesystem interface to user-mode. EncFS runs entirely in which exports a filesystem interface to user-mode. EncFS runs entirely in
user-mode and acts as a transparent encrypted filesystem. user-mode and acts as a transparent encrypted filesystem.
Usage: Usage
-----
- To see command line options, see the man page for encfs and encfsctl, or for - To see command line options, see the man page for encfs and encfsctl, or for
brief usage message, run the programs without an argument (or '-h'): brief usage message, run the programs without an argument (or '-h'):
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created. created.
Technology: Technology
----------
- Encfs uses algorithms from third-party libraries (OpenSSL is the default) to - Encfs uses algorithms from third-party libraries (OpenSSL is the default) to
encrypt data and filenames. encrypt data and filenames.
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file has a unique initialization vector. This makes it infeasible to copy a file has a unique initialization vector. This makes it infeasible to copy a
whole block from one file to another. whole block from one file to another.
Backward Compatibility: Backward Compatibility
----------------------
At the top level of the raw (encrypted) storage for an EncFS filesystem is a At the top level of the raw (encrypted) storage for an EncFS filesystem is a
configuration file, created automatically by EncFS when a new filesystem is configuration file, created automatically by EncFS when a new filesystem is
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newer versions use algorithms and/or new options which were not previously newer versions use algorithms and/or new options which were not previously
available. available.
Utility: Utility
-------
In addition to the "encfs" main program, a utility "encfsctl" has been In addition to the "encfs" main program, a utility "encfsctl" has been
provided which can perform some operations on encfs filesystems. Encfsctl provided which can perform some operations on encfs filesystems. Encfsctl
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algorithm used, key length, block size), and more importantly it can also algorithm used, key length, block size), and more importantly it can also
change the user-supplied password used to encrypt the volume key. change the user-supplied password used to encrypt the volume key.
Dependencies: Dependencies
------------
Encfs uses the OpenSSL toolkit (http://www.openssl.org) by default. Encfs uses the OpenSSL toolkit (http://www.openssl.org) by default.
OpenSSL is not covered by the GPL, and some people are concerned about the OpenSSL is not covered by the GPL, and some people are concerned about the