Clik here to view.
The compromise of the State Department’s strip cipher – Things that don’t add...
During WWII the US State Department used several cryptosystems in order to protect its radio communications from the Axis powers. The main systems used were the unenciphered Gray and Brown codebooks...
View ArticleClik here to view.
Update
1). In State Department’s strip cipher – reuse of alphabet strips and key lists i added the following US report of November 1943:2). In The compromise of the State Department’s strip cipher – Things...
View ArticleClik here to view.
Update
1). I’ve added information in Allen Dulles and the compromise of OSS codes in WWII. Specifically the paragraph ‘Reports received from members of the German Resistance’ and page 163 of the ‘War Report,...
View ArticleClik here to view.
TICOM reports and the NSA’s classification policy
At the end of WWII the Anglo-American Allies initiated a program called TICOM - Target Intelligence Committee, whose goal was to capture the files and personnel of the Axis signal intelligence...
View ArticleClik here to view.
The CIA’s assessment of the Yom Kippur War
The State of Israel and its Arab neighbors have fought regular wars several times, specifically in 1948, 1956, 1967 and 1973. The 1973 conflict was called the Yom Kippur War and although it opened with...
View ArticleClik here to view.
Operation Overlord and the secret messages of the BBC
During WWII resistance movements in German occupied Europe were organized and supported by the British intelligence services SIS and SOE. Messages to their agents in Europe were sometimes transmitted...
View ArticleUpdate
I’ve added links to files from the NSA’s Friedman collection in some of my essays. Specifically:1). In State Department’s strip cipher – reuse of alphabet strips and key lists I added links to the...
View ArticleUpcoming essay on Referat 12
Back in August 2014 I said:Referat 12Referat 12 (Agents section) of the German Army’s signal intelligence agency OKH-Inspectorate 7/VI dealt with the codes and ciphers of enemy agents. During the war...
View ArticleUpdate
I’ve added a scribd link to TICOM D-60 ‘Miscellaneous Papers from a file of RR Dr. Huettenhain of OKW/Chi’ and uploaded TICOM I-174 ‘Preliminary Interrogation Report on O.R.R. MUELLER of OKW/CHI’ in...
View ArticleClik here to view.
Allied agents codes and Referat 12
In the course of WWII both the Allies and the Axis powers were able to gain information of great value from reading their enemies secret communications. In Britain the codebreakers of Bletchley Park...
View ArticleUpdate
1). I’ve added links to Allied agents codes and Referat 12 in several essays dealing with agents codes.2). In The US AN/GSQ-1 (SIGJIP) speech scrambler I had written ‘The US authorities used up to mid...
View ArticleCriticism of Soviet/Russian MiG-29 fighter jet
The site foxtrotalpha has an interview with Lt. Col. Fred "Spanky" Clifton and one of the topics discussed was the Russian MiG-29 fighter, introduced in the early 1980’s by the Soviet Air Force. The...
View ArticleClik here to view.
Update
I’ve added links to the CIA FOIA, State Department FOIA and Japan Center for Asian Historical Records websites.Also added decoded US and British diplomatic messages from 1941 in Japanese codebreakers...
View ArticleClik here to view.
Article on the Soviet T-34 tank
A very interesting article on the T-34 has been published by ‘The Journal of Slavic Military Studies’. It is ‘Once Again About the T-34’ by Boris Kavalerchik and it’s basically a translation of chapter...
View ArticleClik here to view.
The codes of the Polish Intelligence network in occupied France 1943-44
In WWII Poland fought on the side of the Allies and suffered for it since it was the first country occupied by Nazi Germany. In the period 1940-45 the Polish Government in Exile and its military forces...
View ArticleUpdate
In the sources of The American M-209 cipher machine I added links to Cryptomuseum Hagelin M-209 page, Special conference on M-209 security (1950), M-209: German break
View ArticleClik here to view.
New reports released by the NSA
Even though most TICOM reportshave been released by the NSA and GCHQ, some are still classified. It seems that (finally…) this is beginning to change since I just received TICOM I-89 ‘Report by Prof...
View ArticleClik here to view.
Book review - The triumph of Zygalski's sheets: the Polish Enigma in the...
The solution of the German Enigma cipher machine by the codebreakers of Bletchley Park and the effect that this had on World War II became public knowledge in the 1970’s, with the publication of books...
View ArticleMore information on the T-34 tank
The book ‘Armored Champion: The Top Tanks of World War II’ has in chapter 1 a table showing the results of a Soviet study regarding the performance of the T-34 tank’s armor versus enemy rounds. The...
View ArticleClik here to view.
Book presentation – ‘Encryptors and Radio Intelligence. Shield and Sword of...
In the 20th century the widespread use of radio for communications gave governments and military forces the ability to transmit information across vast distances almost instantaneously. This new...
View Article