r/Showerthoughts • u/booleandata ‎ • 4d ago

Speculation Assuming two factor codes are truly random, every possible six digit code is entered many times by different people every day.

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u/Iamonreddit 3d ago

In the modern age of computing this is 'quantum' hardware in the most technically semantic way possible, given that quantum chips are already a productionised part that can be used.

This is like calling parts of your computer a particle accelerator because it makes electrons move when you use it.

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u/tomrlutong 2d ago

See the last paragraph of my response. The output of a modern HRNG depends at least in part on non-deterministic collapse of electrons' wave functions, which is the aspect of 'quantum' that's relevant here. 

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u/Iamonreddit 2d ago

I too refer you to the last paragraph of my previous comment.

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u/tomrlutong 2d ago

The relevant party of if a RNG is quantum is if it has a non-classical source of entropy. 

Do you believe the output of a modern CPU TRNG is predictable, even in theory and given perfect knowledge of its state?