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“Alice had got so much into the way of expecting nothing but out-of-the-way things to happen,
that it seemed quite dull and stupid for life to go on in the common way.” 
 ― Lewis Carroll, Alice in Wonderland

ENIGMA M4

Because Admiral Karl Dönitz, head of the U-Boat section of the German Navy had his doubts, three extra wheels were introduced (VI, VII and VIII), exclusively for the Kriegsmarine. But that wasn't all he changed. On 2 February 1942, completely out of the blue, the German Navy introduced the Enigma M4, a four-wheel machine, exclusively for U-Boat communication. At the same time they changed their codebooks, leaving the codebreakers at Bletchley Park in 
the dark. 
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The Enigma M4 had an extra rotor, called theZusatzwalze (extra wheel), inserted between the 3rd wheel and the Umkehrwalze (reflector). As the Bombe was built specifically for breaking three-wheel Enigma traffic, it was not suitable for attacking the new M4 machine. Photo: CryptoMuseum.com
Apparently, Dönitz, had managed to fulfill the logistic nightmare of replacing all existing M3 machines by the new M4. But as the code was changed overnight, and the rest of the Navy was still using the 3-wheel machine, Turing figured that the machines were somehow compatible.

He turned out to be right. When the 4th wheel was set at 'A', the machine would behave like the old M3. This was done, for example, when communicating with the Naval Weather Service.  Furthermore, the 4th wheel never moved during encypherment, making it effectivelty a selector between 26 different reflectors (UKW).  Turing soon managed to recover the full wiring of the extra wheel, but was in desperate need for new codebooks in order to read the U-Boat traffic. 
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In the event it took until 30 October 1942, nearly 9 months after the introduction of the M4, before new codebooks were captured. In the meantime, some 3-wheel Bombes had been adapted for attacking 4-wheel Enigma traffic and orders were given to Doc Keen at BTM for the development of an enhanced Bombe.

THE LORENZ SZ-40/42

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A highly sophisticated teleprinter attachment with no less than twelve complex cipher wheels.  It was used by the German High Command for messages at the highest level, for example between Hitler and Field Marshal Rommel in North Africa.
Photo: CryptoMuseum.com

THE AMERICAN BOMBE

Although the British 4-wheel Bombe worked as expected, it faced many problems.  At this stage of the war, Great Britain had shortages of nearly everyhing. As a result, BTM was unable to deliver enough machines in time and the machines that were delivered often had contact problems. 

Since their involvement in the war in 1942, the Americans had been pushing the Brits to share their knowledge about the Bombe and allow them to copy its design.  Finally, in late 1942, when the British 4-wheel Bombe was facing problems and the daily losses in the Battle of the Atlantic were accumulating, the Brits finally gave in and allowed the US to build its own Bombe. 
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United States Naval Computing Machine Laboratory
Outside of Washington DC, and operated by the United States Navy during WWII. the US Naval Computing Machine Laboratory owned a highly secret design and manufacturing site for code-breaking machinery located in Building 26 of the National Cash Register (NCR) company in Dayton, Ohio.

The US-Bombe was built by the National Cash Registers (NCR) in Dayton (USA), where it was developed by Joe Desch. Initially, the US Navy wanted him to build a fully electronic machine, but Desch found this to be impractible,
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In the end, the US Bombe turned out to be very reliable, fast and effective. By December 1943, 120 machines were installed.  For the remainder of the war, the US took care of breaking the majority of German Naval Enigma traffic and in particular the messages of the dreaded German U-Boats. 
By the end of the war, the US Bombe would have saved thousands of  lives. After the war, all US Bombes were destroyed, except for one unit which is now on permanent display at the National Cryptologic Museum (NCM) at Fort Meade (USA), 
Photo: CryptoMuseum.com
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Please visit:  CryptoMuseum.com

Old School 

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Gotta love a modern twist...
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DaVinci Code Mini Cryptex

A modern cryptex looks ancient by design.   Portable vault used to hide secret messages. It is a combination of the words cryptology and codex; "an apt title for this device" since it uses "the science of cryptology to protect information written on the contained scroll or codex"
(p. 199 of the novel).  The first physical cryptex was created by Justin Kirk Nevins in 2004
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The DaVinci Code replica of the mini Cryptex is made by 
The NOBLE COLLECTION
and sold in the The Warner Bros Store.

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Become a secret agent and experience the thrill of a spy-like adventure, get to know the secrets of cryptology and
break enemy messages! 

Cryp·tex
noun 
  1. A portable vault used to hide secret messages, consisting of a cylinder divided into rings that must be lined up correctly in order to open the cylinder and reveal the message contained within;
    supposed to have been designed by Leonardo da Vinci.
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About the Author


My Fathers repeated radiation exposures compromised his health and mine, altered my DNA, and since as a result I can't reproduce, thankfully the suffering from this will stop with me.  Chief Moore was still classified above Top Secret and under Q-Clearance during his entire lifetime.  As a result, we were isolated and insulated while we fought his exotic cancers as a military guinea pig for 20+ years, from 1969 to 1989 at Oak Knoll Naval Hospital.  It has altered our lives in ways no one saw coming.   Add the consequences of another 25+ years after his death and to still be learning about who he really was is inspiring.  
​

Our family has suffered the impact, like so many others effected by the US Government's atomic, nuclear and thermonuclear and human experiments in the Pacific Proving Grounds.   The story continues, so I might as well tell it while the fight goes on for the government to acknowledge the health crisis they caused for 2nd Gens and provide some mechanism for screening and healthcare services from military or VA medical professionals who are informed of our compromised state of health.

Contact

childrenofatomicveterans@gmail.com​
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