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perl-fastpbkdf2 (Crypt::OpenSSL::FASTPBKDF2)

Crypt::OpenSSL::FASTPBKDF2 is the Perl wrapper for PBKDF2 keys derivation function of the OpenSSL library using fastpbkdf2.

PBKDF2 applies a pseudorandom function, such as hash-based message authentication code (HMAC), to the input password or passphrase along with a salt value and repeats the process many times to produce a derived key, which can then be used as a cryptographic key in subsequent operations. The added computational work makes password cracking much more difficult, and is known as key stretching.

Fastpbkdf2 is a fast PBKDF2-HMAC-{SHA1|SHA256|SHA512} implementation in C. It uses OpenSSL's hash functions, but out-performs OpenSSL's own PBKDF2 thanks to various optimisations in the inner loop.

Dependencies

This module requires these other modules and libraries:

XSLoader (Perl module)
OpenSSL (C library)

Installation

This module is not yet on CPAN. To install this module from source, download and extract the files into a new folder. In that folder, type the following:

$ perl Makefile.PL
$ make
$ make test
$ sudo make install

Usage

  use Crypt::OpenSSL::FASTPBKDF2 qw/fastpbkdf2_hmac_sha1 fastpbkdf2_hmac_sha256 fastpbkdf2_hmac_sha512/;

  # Initialize parameters for password, salt, number of iterations, and desired output length (in bytes)
  my ($password, $salt, $num_iterations, $output_len) = ('password', 'salt', 100, 32);

  # Initialize buffer array (optional argument)
  my @buffer;

  # Set hash results into scalar variables
  my $hash_sha1 = fastpbkdf2_hmac_sha1($password, $salt, $num_iterations, $output_len, @buffer);        #= 0x8595d7aea0e7c952a35af9a838cc6b393449307cfcc7bd340e7e32ee90115650
  my $hash_sha256 = fastpbkdf2_hmac_sha256($password, $salt, $num_iterations, $output_len, @buffer);    #= 0x07e6997180cf7f12904f04100d405d34888fdf62af6d506a0ecc23b196fe99d8
  my $hash_sha512 = fastpbkdf2_hmac_sha512($password, $salt, $num_iterations, $output_len, @buffer);    #= 0xfef7276b107040a0a713bcbec9fd3e191cc6153249e245a3e1a22087dbe61606

  # Print the contents of the buffer as HEX
  print unpack('H*', join('', @buffer)); # "8595d7aea0e7c952a35af9a838cc6b393449307cfcc7bd340e7e32ee9011565007e6997180cf7f12904f04100d405d34888fdf62af6d506a0ecc23b196fe99d8fef7276b107040a0a713bcbec9fd3e191cc6153249e245a3e1a22087dbe61606"

Copyright

License

[GNU GPLv3] license