Sunday, December 15, 2019

Overview of 2019

In 2019 I was able to research some cases of cryptologic history plus there were some interesting articles and presentations that presented new information.


1). In The American M-209 cipher machine I added info on the unit NAASt 7 and the compromise of the M-209 machine during the invasion of Sicily in 1943.

3). I updated my essay The French War Ministry’s FLD code with information from the Bulletin de l’ARCSI’ articles: Essai d'historique du Chiffre (Add. N°3) and Essai d'historique du Chiffre (N°5) by Général Ribadeau-Dumas. Also added info from the TICOM documents 3612, 3684, 3661.

4). I added a link to the HistoCrypt 2019 proceedings.

6). I added a link to the report ‘Technik und Verfahren der Spionagefunkdienste’  (link from

7). I added links to the following interesting academic articles:

German mathematicians and cryptology in WWII by Frode Weierud and Sandy Zabell.

Enigma G: The counter Enigma’ by David Kenyon & Frode Weierud

8). I uploaded the following documents to my TICOM folder:

Unfortunately, there were some setbacks:

1). The authorized history of GCHQ Behind the Enigma: The Authorised History of GCHQ, Britain’s Secret Cyber Intelligence Agency’ has been delayed till October 2020.

2). My two FOIA cases (TICOM report I-40 from the NSA and the Henriksson report from the State Department) are still in review.

Hopefully in 2020 my FOIA cases will be processed. Apart from that I don’t have any active research projects on crypto history.