Scramdisk for Linux is an on-the-fly encryption system which hides complete file systems within encrypted regular files called containers. If configured accordingly it is container-compatible with Scramdisk for Windows developed by Shaun Hollingworth. For details on Scramdisk for Windows see for instance the World-Wide-Web page "http://www.scramdisklinux.org/". For bug reports and technical questions on Scramdisk for Linux you may send mail to the author <hans-ulrich.juettner@t-online.de>. General questions might be better sent to the news group <alt.security.scramdisk>.
Scramdisk for Linux comprises a kernel driver scramdisk.ko, the graphical user interface scramdisk and four small command line utilities sdcreate, sdchange, sdmount and sdumount. The command line utilities, however, are not subject of this online documentation. See the full documentation in the file scramdisk.pdf for that matter.
After a container has been "mounted" any data could be read from or written to the file system inside the container transparently with help of the driver scramdiks.ko. By unmounting the container the file system becomes inaccessible again. New encrypted containers to be used by Scramdisk can be created using the Create button. All ciphers of the Windows Scramdisk software and some additional ciphers like AES are supported except for Idea, wich is patented, and Tea with 16 rounds and Misty1. Moreover, Scramdisk for Linux supports the additional digests Ripemd160 and SHA256. If windows container compatibility is checked, the created container can be opened by the Windows Scramdisk as well. In this case a digest or a cipher not supported by the Windows Scramdisk is not accepted and the container is formatted msdos. On the other hand, any container created with Scramdisk for Windows can be opened with Scramdisk for Linux if it does not use Idea, Tea with 16 rounds or Misty one. The passphrase of a container can be changed later using the Change button.
Scramdisk for Linux is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
Scramdisk for Linux is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with Scramdisk for Linux—see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.