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Security: Encryption: Disk Encryption
With normal encryption methods, you can protect your data, but you still have
to decrypt a file manually every time you want to use it. Also, many
editors and viewers have a habit of creating temporary files. The decrypted
data can end up in these files, and they are not safely deleted when the
program exits. This means that this data can easily be accessed by everyone
who manages to get at your hard disk.
Disk encryption programs encrypt your entire hard disk (sometimes they use
a special partition), so that you don't have to worry about leaving the
decrypted messages on your disk. The approach is similar to Stacker's
disk compression program, but these packages encrypt instead.
Disclaimer: The programs listed in this document have not been
tested by me, and I cannot guarantee that they will work on your system
without problems. Use at your own risk!
Dekart Private Disk
- Disk encryption software that uses AES-256 bit
encryption algorithm. It creates file-images that appear as removable
disks on a PC. The software can work from a removable device, without
installation. Includes the ability to create a whitelist of
applications that may access the encrypted disk.
Runs on Windows 95/98/ME/NT/2000/XP. Commercial. A
version is also available.
- A standard DOS device driver-based encryption system. It can create
up to five encrypted volumes which are encrypted using IDEA. Also
has several other useful options, like a hotkey to quickly unmount an
encrypted volume. You can also download
Secure FileSystem directly.
- Secure Device is a device-driver that creates extra "drives" on
a DOS/Windows computer which are encrypted using IDEA. These can
then be used by any DOS/Windows program. The extra drives are
simulated using a hidden file on an existing partition.
- For DOS and Windows systems. Also runs (with some limitations) under
Windows '95. It creates an encrypted partition on your hard disk
where the data is stored safely. Uses IDEA. It can
also handle floppies. You can also download SecureDrive
BestCrypt for Windows 95
- This is a commercial disk encryption program similar to SFS and SD, but which
is designed for Windows '95.
- Another disk encryption program for Windows '95, with much the
same functionality as BestCrypt. But unlike BestCrypt, ScramDisk
seNTry 2020 for Windows NT 4.0
- Kernel-mode driver which uses containers as virtual volumes encrypted using MDC/SHA.
Supports all NT filesystems. Commercial software, a 21-day trial
version is available from the website.
- A disk encryption program for the Macintosh. It creats files which
can be mounted as if they were hard disks on your desktop. Uses
IDEA to encrypt the files. You can download the
program from a restricted FTP site from this site, or directly from
in the Netherlands.
Crypto File System
- An encrypted file system for Unix. It runs as a user-mode NFS server on the local
machine, and passes any requests to the remote machine over an encrypted channel.
TCFS - Transparent Cryptographic File System (for Linux)
- Similar to Crypto File System above, but TCFS is file- and not
directory-oriented. Each file can be encrypted separately.
Security: Encryption: Pretty Good Privacy
- PGP is a file encryption program which is generally considered unbreakable.
It is used extensively on the Internet, available for almost every platform
and is required for anonymous remailers. It
can also create digital signatures, which makes it easy to detect forgeries.
Warning: Non-US citizens should note that obtaining programs that
are capable of strong encryption from a US source may be a violation of
ITAR restrictions, punishable by a fine of up to $1,000,000 and 10 years
in prison. By obtaining programs from a US source, you are also endangering
the maintainer of the site for making this material available to non-US
citizens. Please obtain the program from a non-US source if possible.
Last modified: 22 Jan 2000
Author: Arnoud "Galactus" Engelfriet
This document was generated with Orb v1.3 for OS/2.