[Cryptography] tamper-evident crypto? (was: BULLRUN)

Phillip Hallam-Baker hallam at gmail.com
Thu Sep 5 21:29:58 EDT 2013

Sent from my difference engine

On Sep 5, 2013, at 9:22 PM, Peter Gutmann <pgut001 at cs.auckland.ac.nz> wrote:

> John Denker <jsd at av8n.com> writes:
>> To say the same thing the other way, I was always amazed that the Nazis were
>> unable to figure out that their crypto was broken during WWII.  There were
>> experiments they could have done, such as sending out a few U-boats under
>> strict radio silence and comparing their longevity to others.
> Cognitive dissonance.  "We have been...", sorry "Ve haff been reassured zat
> our cipher is unbreakable, so it must be traitors, bad luck, technical issues,
> ...".

Not necessarily

Anyone who raised a suspicion was risking their life.

> Peter.
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