/ 
Random-RDTSC-0.1
/ Random::RDTSC

NAME

Random::RDTSC - Perl wrapper for RDTSC-based random number generation

SYNOPSIS

use Random::RDTSC qw(get_rdtsc rdtsc_rand64);

my $timestamp  = get_rdtsc();
my $random_val = rdtsc_rand64();

print "TSC: $timestamp, Random: $random_val\n";

DESCRIPTION

This module provides access to the get_rdtsc() and rdtsc_rand64() functions from the rdtsc_rand library, allowing for high-resolution timestamps and random number generation based on the CPU's RDTSC instruction.

Random::RDTSC is not vetted for true randomness. It is designed to be a good starting point for other pseudo random number generators. If you use the numbers from Random::RDTSC as seeds for other PRNGs you can have good, self-starting random numbers.

Random::RDTSC is not seedable and thus not repeatable. Repeatability can be helpful for testing and validating code. You should use a seedable PRNG to get repeatable random numbers.

Based on rdtsc_rand.

FUNCTIONS

get_rdtsc

my $tsc = get_rdtsc();

Returns the current timestamp counter value.

rdtsc_rand64

my $rand = rdtsc_rand64();

Returns a 64-bit random number based on the timestamp counter.

CAVEATS

Are there better sources of randomness?

Most definitely. Your operating system gathers a source of entropy for randomness that is very high quality. For cryptographic applications and anything where true randomness is required you should use those instead. Random::RDTSC is designed to be quick and simple.

AUTHOR

Scott Baker - https://www.perturb.org/

LICENSE

This library is free software; you may redistribute it and/or modify it under the same terms as Perl itself.