# Crypt::PBKDF2::Hash - phpMan

## NAME
    [Crypt::PBKDF2::Hash] - Abstract role for PBKDF2 hashing algorithms.

## VERSION
    version 0.161520

## METHODS
  hash_len()
    Returns the length (in bytes) of the hashes this algorithm generates.

  generate($data, $key)
    Generate strong pseudorandom bits based on the $data and $key

  to_algo_string()
    Return a string representing any optional arguments this object was
    created with, for use by [Crypt::PBKDF2]'s "generate" and "encode_string"
    methods. May return undef if no arguments are required, in which case
    none will be serialized and "from_algo_string" won't be called on
    reading the hash.

  from_algo_string($str)
    Given a string as produced by "from_algo_string", return an instance of
    this class with options corresponding to those in $str. If no options
    are expected, it's permissible for this method to throw an exception.

## AUTHOR
    Andrew Rodland <<arodland@cpan.org>>

## COPYRIGHT AND LICENSE
    This software is copyright (c) 2016 by Andrew Rodland.

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