From b3c29c9412a5ac05df161a9c69c3304e4f02448a Mon Sep 17 00:00:00 2001
From: Sein Coray <s3inlc@hashes.org>
Date: Sat, 22 Dec 2018 22:50:37 +0100
Subject: [PATCH] Added test modules for mode 20, 21 and 23

---
 tools/test_modules/m00020.pm | 44 ++++++++++++++++++++++++++++++++++++
 tools/test_modules/m00021.pm | 44 ++++++++++++++++++++++++++++++++++++
 tools/test_modules/m00023.pm | 44 ++++++++++++++++++++++++++++++++++++
 3 files changed, 132 insertions(+)
 create mode 100644 tools/test_modules/m00020.pm
 create mode 100644 tools/test_modules/m00021.pm
 create mode 100644 tools/test_modules/m00023.pm

diff --git a/tools/test_modules/m00020.pm b/tools/test_modules/m00020.pm
new file mode 100644
index 000000000..56b83d348
--- /dev/null
+++ b/tools/test_modules/m00020.pm
@@ -0,0 +1,44 @@
+#!/usr/bin/env perl
+
+##
+## Author......: See docs/credits.txt
+## License.....: MIT
+##
+
+use strict;
+use warnings;
+
+use Digest::MD5 qw (md5_hex);
+
+sub module_generate_hash
+{
+  my $word = shift;
+  my $salt = shift // random_numeric_string (random_count (15));
+
+  my $hash = md5_hex ($salt . $word) . ":$salt";
+
+  return $hash;
+}
+
+sub module_verify_hash
+{
+  my $line = shift;
+
+  my ($hash, $salt, $word) = split (':', $line);
+
+  return unless defined $hash;
+  return unless defined $salt;
+  return unless defined $word;
+
+  $word = pack_if_HEX_notation ($word);
+
+  my $new_hash = module_generate_hash ($word, $salt);
+
+  return unless defined $new_hash;
+
+  return unless $new_hash eq "$hash:$salt";
+
+  return $new_hash;
+}
+
+1;
diff --git a/tools/test_modules/m00021.pm b/tools/test_modules/m00021.pm
new file mode 100644
index 000000000..cdf93121f
--- /dev/null
+++ b/tools/test_modules/m00021.pm
@@ -0,0 +1,44 @@
+#!/usr/bin/env perl
+
+##
+## Author......: See docs/credits.txt
+## License.....: MIT
+##
+
+use strict;
+use warnings;
+
+use Digest::MD5 qw (md5_hex);
+
+sub module_generate_hash
+{
+  my $word = shift;
+  my $salt = shift // random_hex_string (2);
+
+  my $hash = md5_hex ($salt . $word) . ":$salt";
+
+  return $hash;
+}
+
+sub module_verify_hash
+{
+  my $line = shift;
+
+  my ($hash, $salt, $word) = split (':', $line);
+
+  return unless defined $hash;
+  return unless defined $salt;
+  return unless defined $word;
+
+  $word = pack_if_HEX_notation ($word);
+
+  my $new_hash = module_generate_hash ($word, $salt);
+
+  return unless defined $new_hash;
+
+  return unless $new_hash eq "$hash:$salt";
+
+  return $new_hash;
+}
+
+1;
diff --git a/tools/test_modules/m00023.pm b/tools/test_modules/m00023.pm
new file mode 100644
index 000000000..3fa19da63
--- /dev/null
+++ b/tools/test_modules/m00023.pm
@@ -0,0 +1,44 @@
+#!/usr/bin/env perl
+
+##
+## Author......: See docs/credits.txt
+## License.....: MIT
+##
+
+use strict;
+use warnings;
+
+use Digest::MD5 qw (md5_hex);
+
+sub module_generate_hash
+{
+  my $word = shift;
+  my $salt = shift // random_hex_string (2);
+
+  my $hash = md5_hex ($salt . "\nskyper\n" . $word) . ":$salt";
+
+  return $hash;
+}
+
+sub module_verify_hash
+{
+  my $line = shift;
+
+  my ($hash, $salt, $word) = split (':', $line);
+
+  return unless defined $hash;
+  return unless defined $salt;
+  return unless defined $word;
+
+  $word = pack_if_HEX_notation ($word);
+
+  my $new_hash = module_generate_hash ($word, $salt);
+
+  return unless defined $new_hash;
+
+  return unless $new_hash eq "$hash:$salt";
+
+  return $new_hash;
+}
+
+1;