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

[Peter Gutmann]

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,
...".

Peter.