[Cryptography] Stupid question on S-boxes

Peter Gutmann pgut001 at cs.auckland.ac.nz
Fri Jan 25 19:39:50 EST 2019


Jerry Leichter <leichter at lrw.com> writes:

>I'd say the ability to safely do crypto on shared hardware is very much an
>open question at this point.

Thus the restatement of Law #1 of the 10 Immutable Laws of Security, "If a bad
guy can persuade you to run his program on your computer, it’s not your
computer any more", which in its inverse form is the Immutable Law of Cloud
Computing Security:

"If a bad guy can persuade you to run your program on his computer, it’s not
 your program any more".

Peter.


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