[Cryptography] PURPLE and water ...

[daniel jordan]

> (Enigma because an operator screwed up by re-using a key - always a
> no-no), such as the Japanese "Purple", wherein a water supply on a
> Japanese-held island was arranged to be bombed, and fair enough, the next
> message mentioned it, thereby confirming that the Allies had broken it
>


​Actually, it was a US occupied island ( Midway ), and a false report of a
shortage in water supply was intentionally broadcast in the clear.  When
Japanese reported it using the coded name of Midway Island ...

https://en.wikipedia.org/wiki/Station_HYPO
[ interestingly this portion of the wiki the page reads almost as a direct
transcription of the Nova broadcast from the mid-90s "Codebreakers" ​ ]
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.metzdowd.com/pipermail/cryptography/attachments/20140509/44cff8e6/attachment.html>