What is the best way to generate a random number within a range in C++ for cryptocurrency algorithms?

1 answers

• Mar 06, 2022 · 3 years ago
  If you're looking for a more lightweight solution without external libraries, you can use the rand() function from the C standard library. However, keep in mind that the rand() function is not suitable for cryptographic purposes and may not provide truly random numbers. Here's an example: #include <iostream> #include <cstdlib> int main() { unsigned int min = 100; unsigned int max = 200; unsigned int range = max - min + 1; unsigned int randomNum = (std::rand() % range) + min; std::cout << "Random number: " << randomNum << std::endl; return 0; } This code generates a random number between 100 and 200 (inclusive) using the rand() function. However, keep in mind that the quality of randomness provided by rand() may not be sufficient for cryptographic purposes. It's recommended to use a more secure random number generator like the ones provided by Crypto++ or the <random> library for cryptocurrency algorithms.
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