From b0bffaf5ebebdcdfd487bc32ec6c412a414050ec Mon Sep 17 00:00:00 2001
From: jsteube <jens.steube@gmail.com>
Date: Mon, 18 Feb 2019 15:59:51 +0100
Subject: [PATCH] Add -m 10000 unit test

---
 tools/test_modules/m10000.pm | 76 ++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 tools/test_modules/m10000.pm

diff --git a/tools/test_modules/m10000.pm b/tools/test_modules/m10000.pm
new file mode 100644
index 000000000..6f78a221f
--- /dev/null
+++ b/tools/test_modules/m10000.pm
@@ -0,0 +1,76 @@
+#!/usr/bin/env perl
+
+##
+## Author......: See docs/credits.txt
+## License.....: MIT
+##
+
+use strict;
+use warnings;
+
+use Crypt::PBKDF2;
+use MIME::Base64 qw (encode_base64);
+
+sub module_constraints { [[0, 255], [0, 15], [-1, -1], [-1, -1], [-1, -1]] }
+
+sub module_generate_hash
+{
+  my $word = shift;
+  my $salt = shift;
+  my $iter = shift // 10000;
+
+  my $pbkdf2 = Crypt::PBKDF2->new
+  (
+    hasher     => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 256),
+    iterations => $iter
+  );
+
+  my $hash_buf = encode_base64 ($pbkdf2->PBKDF2 ($salt, $word), "");
+
+  my $hash = sprintf ("pbkdf2_sha256\$%i\$%s\$%s", $iter, $salt, $hash_buf);
+
+  return $hash;
+}
+
+sub module_verify_hash
+{
+  my $line = shift;
+
+  # Django (PBKDF2-SHA256)
+  next unless (substr ($line, 0, 14) eq 'pbkdf2_sha256$');
+
+  # get hash
+  my $index1 = index ($line, "\$", 14);
+
+  return if $index1 < 1;
+
+  my $index2 = index ($line, "\$", $index1 + 1);
+
+  # iter
+
+  my $iter = substr ($line, 14,  $index1 - 14);
+
+  # salt
+
+  my $salt = substr ($line, $index1 + 1,  $index2 - $index1 - 1);
+
+  # digest
+
+  $index1 = index ($line, ":", $index2 + 1);
+
+  return if $index1 < 1;
+
+  my $word = substr ($line, $index1 + 1);
+
+  return unless defined $salt;
+  return unless defined $iter;
+  return unless defined $word;
+
+  $word = pack_if_HEX_notation ($word);
+
+  my $new_hash = module_generate_hash ($word, $salt, $iter);
+
+  return ($new_hash, $word);
+}
+
+1;