Recently new information was published on the M-209 cipher machine and this information coupled with all the material that I have collected over the years led me to write a new essay on the M-209 cipher machine and its exploitation by the German and Japanese codebreakers.
The new
essay is:
Christos! Good to see you back. As always, this was en excellent essay. Please do additional updates on various intel/crypto subjects more often…..::
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