• NAME
• SYNOPSIS
• DESCRIPTION
• METHODS
  • get $n, %args
  • read $buf, $n, [ $off ]
  • seed @stuff
  • available
  • rank
  • get_data %Params
• AUTHOR
• COPYRIGHT AND LICENSE

NAME

Crypt::Random::Source::Base - Abstract base class for Crypt::Random::Source classes

SYNOPSIS

    use Moose;
    extends qw(Crypt::Random::Source::Base);

DESCRIPTION

This is an abstract base class.

In the future it will be a role.

METHODS

get $n, %args

Gets $n random bytes and returns them as a string.

This method may produce fatal errors if the source was unable to provide enough data.

read $buf, $n, [ $off ]

This method is cannibalized from IO::Scalar. It provides an IO::Handle work-alike.

Note that subclasses override this to operate on a real handle directly if available.

seed @stuff

On supporting sources this method will add @stuff, whatever it may be, to the random seed.

Some sources may not support this, so be careful.

available

This is a class method, such that when it returns true calling new without arguments on the class should provide a working source of random data.

This is use by Crypt::Random::Source::Factory.

rank

This is a class method, with some futz value for a ranking, to help known good sources be tried before known bad (slower, less available) sources.

get_data %Params

Provided for compatibility with Crypt::Random

AUTHOR

  Yuval Kogman <nothingmuch@woobling.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2011 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.