Historical and technical
information about WW2 and Cold War cipher
machines and the fascinating world of cryptology.
Learn how crypto equipment works and how it is
operated. You can download realistic software
simulations that work exactly as the real
& NEW ITEMS (16 January 2018)
Enigma Challenge John Davies completed the challenge!
OTP Radiograms 101
Reviews Deep Undercover
by Jack Barsky
DIANA - A Fast Reciprocal One-time Pad Table
Pad List of trigrams
for reciprocal DIANA table added
SITE AND BLOG
This website is
created for educational purposes and its content
and images are protected by international
copyright laws. If you would like to use the
content of this website, please ask first and permission will usually be granted
under the condition that full credits and a link
to this webite are given.
Copyright Info, Privacy Statement and
Dirk Rijmenants 2004 - 2018