Reference

Crypt::Random::Source(3pm)

Get weak or strong random data from pluggable sources

NAME

Crypt::Random::Source - Get weak or strong random data from pluggable sources

VERSION

version 0.14

SYNOPSIS

    use Crypt::Random::Source qw(get_strong);
    # get 10 cryptographically strong random bytes from an available source
    my $bytes = get_strong(10);

DESCRIPTION

This module provides implementations for a number of byte oriented sources of random data.

See Crypt::Random::Source::Factory for a more powerful way to locate sources, and the various sources for specific implementations.

EXPORTS

get
get_weak
get_strong

These functions delegate to a source chosen by an instance of Crypt::Random::Source::Factory, calling get

CAVEATS

In versions prior to 0.13, "rand" could be used as a result of calling "get_weak", or "get", if no random device was available. This implies that not explicitly asking for "get_strong" on a non POSIX operating system (e.g. Win32 without the Win32 backend) could have resulted in non cryptographically random data.

Relatedly, the characterization of "urandom" as a weak source of randomness is also largely a misconception, see <https://www.2uo.de/myths-about-urandom/> for example.

SEE ALSO

Crypt::Random, Crypt::Util

SUPPORT

Bugs may be submitted through the RT bug tracker <https://rt.cpan.org/Public/Dist/Display.html?Name=Crypt-Random-Source> (or [email protected] <mailto:[email protected]>).

AUTHOR

XXXX XXX'XX (Yuval Kogman) <[email protected]>

CONTRIBUTORS

•

Karen Etheridge <[email protected]>

•

Florian Ragwitz <[email protected]>

•

Graham Knop <[email protected]>

•

David Pottage <[email protected]>

•

Max Kanat-Alexander <mkanat@es-compy.(none)>

•

Edward Betts <[email protected]>

COPYRIGHT AND LICENCE

This software is copyright (c) 2008 by Yuval Kogman.

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

History