From dec7e25a63a8f19e354118bf515b23a4510b0532 Mon Sep 17 00:00:00 2001
From: mhasbini <mohammad.hasbini@gmail.com>
Date: Sun, 10 Feb 2019 13:30:54 +0200
Subject: [PATCH] Add -m 1722 unit test

---
 tools/test_modules/m01722.pm | 49 ++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 tools/test_modules/m01722.pm

diff --git a/tools/test_modules/m01722.pm b/tools/test_modules/m01722.pm
new file mode 100644
index 000000000..000ce73c8
--- /dev/null
+++ b/tools/test_modules/m01722.pm
@@ -0,0 +1,49 @@
+#!/usr/bin/env perl
+
+##
+## Author......: See docs/credits.txt
+## License.....: MIT
+##
+
+use strict;
+use warnings;
+
+use Digest::SHA qw (sha512_hex);
+
+sub module_constraints { [[0, 255], [8, 8], [0, 55], [8, 8], [0, 55]] }
+
+sub module_generate_hash
+{
+  my $word = shift;
+  my $salt = shift;
+
+  my $salt_bin = pack ("H*", $salt);
+
+  my $digest = sha512_hex ($salt_bin . $word);
+
+  my $hash = sprintf ("%s%s", $salt, $digest);
+
+  return $hash;
+}
+
+sub module_verify_hash
+{
+  my $line = shift;
+
+  my ($hash, $word) = split (':', $line);
+
+  return unless defined $hash;
+  return unless defined $word;
+
+  my $salt = substr ($hash, 0, 8);
+
+  return unless defined $salt;
+
+  my $word_packed = pack_if_HEX_notation ($word);
+
+  my $new_hash = module_generate_hash ($word_packed, $salt);
+
+  return ($new_hash, $word);
+}
+
+1;