Mystics & Statistics – The Dupuy Institute blog
I’ve added a link to the Dupuy Institute blog.
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NATO not a fan of Hagelin cipher machines
Interesting report from the NATO online archive:
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Reports on Japanese WWII codes and ciphers found in the Australian National...
Two very interesting reports detailing the main Japanese diplomatic and naval cryptosystems of WWII are available online via the Australian National Archives website.To view the reports go to the...
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The French War Ministry’s FLD code - More clues…
I’ve written about the compromise of the French War Ministry’s FLD code by the codebreakers of the German High Command's deciphering department – OKW/Chi, however up to this point I hadn’t been able to...
View ArticleMore information on the compromise of Polish codes in WWII
1). In The codes of the Polish Intelligence network in occupied France 1943-44 I’ve added:Update: German decodes of the London-Grenoble traffic can be found in pages 793-877 of ‘KODY WOJNY. Niemiecki...
View ArticleFinding aid for the TICOM collection in the German Foreign Ministry’s...
Recently released TICOM material can be found in the TICOM collection of the German Foreign Ministry’s Political Archive.I have uploaded the excel finding aid here.
View ArticleMore freedom of information act responses from the NSA and the State Department
Recently I wrote about some of my old FOIA requests to the NSA that were processed during 2016.Unfortunately their response was ‘a thorough search of our historical files was conducted but no records...
View ArticleInteresting articles
So far it’s been a slow year…Here are some academic articles that I found interesting:1). From Journal of Intelligence History: ‘Turkey’s intelligence diplomacy during the Second World War’2). From...
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I’ve added the following:1). In US military attaché codes of WWII:Military Intelligence Code No11 was a 5-letter codebook, printed in 1933. It was enciphered with substitution tables.Source was the...
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Update
I’ve added the following in Soviet cipher teleprinters of WWII:Information from the War Diary of Inspectorate 7/VIMore details are available from the monthly reports found in the War Diary of...
View ArticleEnigma research by the German Army’s codebreakers
In the period 1941-44 the cryptanalysts of the German army’s codebreaking department Inspectorate 7/VI investigated the security of the Enigma cipher machine.I’ve copied the relevant passages from the...
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Decrypted Irish telegrams from 1944
In The Irish Government Telegraph Code I’ve added some decrypted Irish diplomatic messages from 1944.Source was the German Foreign Ministry’s Political Archive - TICOM collection – File Nr. 795 Irland...
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More information on the compromise of Czechoslovak ciphers in WWII
In The ciphers of Czechoslovakia’s government in exile I’ve added the following in the paragraph ‘Report on the compromise of the communications of the government in exile’:The report ‘Dopady lúštenia...
View ArticleOverview of 2016
During the year I continued to research several cases of cryptologic history. I got material from the US, British, German and Czech archives, I helped a lot of researchers by giving them...
View ArticleUnanswered questions of WWII cryptology – progress report
In January 2016 I wrote a summary of the progress I had made in researching some very interesting cases of cryptologic history.What is the state of these cases a year later? Let’s see.1). US State...
View ArticleWhat cases am I going to cover this year?
Although I’ve written essays about the most interesting cases of cryptologic history, there are a few cases that I have not been able to cover in detail.Unfortunately in order to write about them I...
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