Christos military and intelligence corner

Recently new information was published on the M-209 cipher machine and this information coupled with all the material that I have collected ...

At the start of WWII, the US armed forces used various means for enciphering their confidential traffic. At the lowest level were hand ciphe...

I’ve been posting here since 2011 and during that time I have covered a variety of subjects on military and intelligence history. From t...

Since I no longer have any active cases I think it’s time to write a summary of my experience with the US freedom of information act program...

My two remaining FOIA cases were filed in 2015 and 2018. I decided to cancel both of them because so much time has passed that this material...

"Слушают или нет?.." Путь советской секретной телефонии во время ВОВ Криптографический фронт в документах времён ВОВ

The proceedings of the International Conference on Historical Cryptology 2020 are available here .

Cryptologia: Enigma: the spoils of Gustave Bertrand, or “par où tout a commencé” by Jean-François Bouchaudy Abstract As early as 193...