NAME
Random::Simple - Generate good random numbers in a user consumable way.
Why Random::Simple?
To make generating random numbers as easy as possible and in a manner that you can use in real code. Generate "good" random numbers without having to think about it.
Usage
use Random::Simple;
my $integer = random_int($min, $max); # inclusive
my $float = random_float(); # 0 - 1 inclusive
my $bytes = random_bytes($count); # string of X bytes
my $die_roll = random_int(1, 6);
my $random_percent = random_float() * 100;
my $buffer = random_bytes(8);
Methodology
Perl's internal rand()
function uses drand48()
which is an older PRNG, and may have limitations. `Random::Simple` uses PCG which is: modern, simple, well vetted, and fast.
Random::Simple
is automatically seeded with high quality entropy directly from your OS. On Linux this is /dev/urandom
and on Windows it uses CryptGenRandom. You will get statistically unique random numbers automatically.
See also
Math::Random::PCG32
Math::Random::ISAAC
Math::Random::MT
Math::Random::Secure
More information
https://github.com/scottchiefbaker/perl-Random-Simple
Author
Scott Baker - https://www.perturb.org/