[Cryptography] Imitation Game: Can Enigma/Tunney be Fixed?

Ray Dillinger bear at sonic.net
Wed Jan 7 22:27:07 EST 2015

On 01/07/2015 12:34 PM, John Young wrote:

> Why were these "faults" not deliberate signals to the Allies? Hard to
> believe the meticulous Germans knew less than the Allies about cribbing
> potential to reveal and mislead. Nor that post-war accounts are the full
> story. 

In at least one case, they were definitely deliberate signals
to the allies.  IIRC there was at least one double agent whose
entire task on behalf of the allies was retransmitting, word-for-
word, the same messages on different cipher systems.  Which he
was able to do, and often, without ever violating a single
Nazi security procedure.  :-o


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