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Crypt::SysRandom::XS(3pm) User Contributed Perl Documentation Crypt::SysRandom::XS(3pm)

NAME

Crypt::SysRandom::XS - Perl interface to system randomness, XS version

VERSION

version 0.009

SYNOPSIS

 use Crypt::SysRandom::XS 'random_bytes';
 my $random = random_bytes(16);

DESCRIPTION

This module uses whatever C interface is available to procure cryptographically random data from the system.

FUNCTIONS

random_bytes($count)

This will fetch a string of $count random bytes containing cryptographically secure random data.

BACKENDS

At build-time, it will try the following backends in order:

  • getrandom

    This backend is available on Linux, FreeBSD and Solaris

  • arc4random

    This interface is supported on most BSDs and Mac.

  • BCryptGenRandom

    This backend is available on Windows (Vista and newer)

  • rdrand64

    This is available on "x86_64" architectures using most compilers.

  • rdrand32

    This is available on "x86_64" and "x86" architectures using most compilers.

AUTHOR

Leon Timmermans <fawaka@gmail.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2025 by Leon Timmermans.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

2025-06-09 perl v5.40.1