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, Office of Strategic Services , volume 2 – Operations in the field’.

2). I’ve added the US Navy report: ‘Japanese Radio Communications and Radio Intelligence’ in Japanese codebreakers of WWII.

3). I’ve added a link to the site of Jean-François Bouchaudy

4). Here are the links to more interesting reports from the Friedman collection:

Typex Mk VI

CCM history

Soviet landlines

Russian air warning service message

Russian dictionary

Japan B-29 decodes

Japan B-29 decodes 2

Japan B-29 decodes 3

Enigma K solution

NSA cipher systems reports

Purple compromise 1941

NSA cryptanalytic devices

French crypto agencies

M-209 manuals

US field codes WWI

State Department security survey 1941

State Department security survey 1943

State Department codebooks