PEFS is a kernel level stacked cryptographic filesystem for FreeBSD.

The following is a list of its most important features:

*   Kernel level file system, no user level daemons needed. Transparently runs
    on top of existing file systems.

*   Random per file tweak value used for encryption, which guaranties different
    cipher texts for the same encrypted files.

*   Saves metadata only in encrypted file name, but not in file itself.

*   Supports arbitrary number of keys per file system, default directory key,
    mixing files encrypted with different keys in same directory.

*   Allows defining key chains, can be used to add/delete several keys by
    specifying only master key.

*   Uses modern cryptographic algorithms: AES and Camellia in XTS mode,
    PKCS#5v2 and HKDF for key generation.

FreeBSD wiki page: http://wiki.freebsd.org/PEFS
blog: http://glebkurtsou.blogspot.com/search/label/pefs


Installation instructions:

# git clone git://github.com/glk/pefs.git pefs
# cd pefs
# make obj all
# make install
# make clean