![]() ![]() ![]() True random numbers are either generated using hardware or from natural phenomena like blood volume pulse, atmospheric pressure, thermal noise, quantum phenomenon, etc. These are pseudorandom (not truly random) because the following numbers can be determined algorithmically if the seed value is known. It uses a seed value and generates a sequence of random numbers as a function of the current state and some previous states. Pseudorandom Number GeneratorsĪ pseudorandom number generator produces numbers that seem aperiodic (random) but are deterministic. LFSR is widely adopted to generate random numbers on microcontrollers because they are very simple, efficient, and easy to adopt both hardware and software. This essay takes a detailed look into random number generation using LFSR - Linear Feedback Shift Registers. A few essays back, we saw how pseudorandom numbers are generated using Cellular Automaton - Rule 30. ![]()
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