3 ms·
There are already hardware random number generator products that are better (https://en.wikipedia.org/wiki/Hardware_random_number_generator https://en.wikipedia
by titzer 7y ago
There are already hardware random number generator products that are better (https://en.wikipedia.org/wiki/Hardware_random_number_generator https://en.wikipedia.org/wiki/Hardware_random_number_generat...). A key point is to reduce energy consumption. Instead of aiming for an unstable clock speed (which requires a lot of power), it suffices to sample the very small leakage current from some circuit at high precision.
- eyegor 7y agoUnstable clock speeds and power have zero relationship when you design the circuit. You can easily design something with a few transistors that will violate setup and hold times at 1-10mhz, which you can get out of a very low power crystal. You could even use an off the shelf mcu with a low nominal clock speed and just point a fast resonator at it. You can even make things unstable by giving it too slow of a clock speed. Most semiconductors don't want to hold a charge difference for very long.