Cryptographic File System cfs-1.4.1

Description:  nfs proxy providing encryptin services
Maintainer:  Manuel Oetiker <>
Created:  2004-06-03
Updated:  2004-06-03 (Package Prepared)
Support:  Oetiker <>
Links:  Authors Software, SEPP Dir, INSTALL
OS:  solaris-2.8 sparc sun4u
Categories:  system
Binaries:  cattachcdetachcfsshcmkdircmkkeycnamecpasswd
More Info
CFS pushes encryption services into the Unix(tm) file system. It supports secure storage at the system level through a standard Unix file system interface to encrypted files. Users associate a cryptographic key with the directories they wish to protect. Files in these directories (as well as their pathname components) are transparently encrypted and decrypted with the specified key without further user intervention; cleartext is never stored on a disk or sent to a remote file server. CFS employs a novel combination of DES stream and codebook cipher modes to provide high security with good performance on a modern workstation. CFS can use any available file system for its underlying storage without modification, including remote file servers such as NFS. System management functions, such as file backup, work in a normal manner and without knowledge of the key.

To activate cfsd you have to exeute cfsd.start start as root. The other commands do not need special priviledges.

User Commands

  • Use cmkdir to setup a cfs directory
  • Attach this directory with cattach
  • The directory is now visible under /crypt/DIRECTORY
Make sure you read the manpages ...