Crypt::Random::Source - Get weak or strong random data from pluggable sources
version 0.14
use Crypt::Random::Source qw(get_strong);
# get 10 cryptographically strong random bytes from an available source
my $bytes = get_strong(10);
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.
- get
- get_weak
- get_strong
- These functions delegate to a source chosen by an instance
of Crypt::Random::Source::Factory, calling get
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.
Crypt::Random, Crypt::Util
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]>).
XXXX XXX'XX (Yuval Kogman) <
[email protected]>
- •
- 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]>
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.