About
the Website
Dear visitor, I have a broad interest in all
things technology, science and history, with a main focus
on electronics, programming and cryptology. I also have a
passion for old crypto equipment and signals
intelligence, both technically and historically, and in
WW2 and Cold War history. The combination of all this
resulted in a desire to bring to life some of the marvels
of cryptology through software simulations, with an
emphasis on authenticity and respect for their history.
In 2004, I decided to share my passion
for cryptology and cipher machines through this website
and the SIGINT Chatter blog
. My goal is to get
people interested in the intriguing world of cryptography
and codebreaking, and to show how a seemingly boring
subject can be a truly fascinating journey into history.
I hope to inspire the reader to look beyond the
well-known WW2 and Cold War stories, to discover the
importance of cryptology, intelligence, and how it
influenced modern history. History is here to share!
The number of visitors and the kind
feedback encourages me to keep this site up to date and expand it whenever time allows. I
appreciate all feedback, additional information or
reporting of broken links to improve this site. You can send an e-mail or write something in the guestbook.
The Internet Archive also preserves copies of this website
and copies of the blog
. Also, if you
encounter a dead external link on this website, then copy
that link to the their Wayback
Machine
to find
a preserved copy, as most links are also archived. Until
2021, this website was hosted at the address
http://users.telenet.be/d.rijmenants/ which is no longer
in use (more info at the updates page).
Dirk Rijmenants (bio)

Copyright
Notice
This website is created for educational purposes
and its content and images are protected by international
copyright laws. If you would like to use contents or
images of this website, please ask first and permission is usually be granted for
non-commercial use, provided that full credits and a link
to this website are provided as follows: "©
Copyright Dirk Rijmenants www.ciphermachinesandcryptology.com".
All photos, images and drawings are copyrighted
by Dirk Rijmenants or by third parties. Some content
comes from unknown sources. If you encounter copyrighted
material on this website without proper reference, then
please contact us and we will add the proper credits and
references or remove the material. Contact us for further questions regarding the use of
copyrighted content.

Privacy
Statement & Cookie Policy
This website supports HTTPS to browse te pages
securely and anonymously. The privacy of the visitors is
respected and this non-commercial website does not use
any online or offline database. No personal information
about any individual visitor is stored, disclosed,
distributed or sold to any third party. If you contact us, your e-mail address will only be used to reply
if necessary. When you send a guestbook entry, your e-mail address is by default not
published, unless you actively choose to add it to the
guestbook, and even then, only a chopped version is
published to limit spam. All offsite links to other
websites are selected carefully, based on information
value and quality.
This website uses Statcounter web
statistics to help improve and optimize the contents,
performance and compatibility. For this purpose, one
analytic performance cookie is sent to your computer. No
personally identifiable information is retrieved or
recorded. The statistics are date and time, visited page,
browser, operating system version, screen resolution,
referring link and IP address. You can opt to refuse
Statcounter cookies. Read more on how to change the
cookie settings directly in your browser for Chrome
, Firefox
, Safari
, Edge
or Opera
.


Adjusting
Screen and Font Size
Screen
size: To resize the website pages, hold the
keyboard CTRL key and scroll the mouse wheel. Press CTRL
and 0 to reset.
Font size: For samples of encrypted text we use
fixed-sized monospace font. When too small or too large,
adjust this in your browser:
Chrome: Settings - Appearance -
Customize fonts - Minimum font size (slider).
Firefox: Settings - General -
Language and Appearance - Advanced - Monospace size.
Edge: Settings - Appearance - Fonts -
Customize fonts - Minimum font size (slider).

Disclaimer
To the best of our knowledge, this site
contains unclassified information only. All information
has been obtained from publicly available sources.
Whenever possible, references and links to the sources
have been added. Although we do our best to present the
contents of this website as correct as possible, we
cannot guarantee it to be free from errors. We therefore
cannot be held responsible for any damage arising from
the use or misuse of the information on this website, or
its suitability for any particular purpose.

This website
and the downloads do not contain any spyware, adware or
other malware, and is checked on a regular basis to keep
it free from harmful software. We encourage all visitors
to always check downloads with anti-virus software. On
this website, you can also verify the integrity of the
downloaded software with the SHA-256 Hash Check.
Prudence is a good habit!