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[–] Amadameus ago 

You're not wrong, but it's more about ease of use. Rolling a die every time you wanted a strong random number would get tiresome, fast.

If I recall correctly it's a few thousand random numbers needed to generate an RSA key...?

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[–] ThisIsntMe123 ago 

Maybe have the arduino roll it 5000 times (a D&D multi sided die), and have the arduino record the numbers. Whenever you need a number, it scans random sites and matches the certain words to the numbers.

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[–] Amadameus 0 points 1 point (+1|-0) ago 

That would be excellent in a practical "the teacher can't read my notes" kind of encryption, but in the scope of this discussion (hardware RNG devices for strong encryption) it would be extremely weak.

Not a bad idea though, and certainly something to follow up on!