diff --git a/tools/test_modules/m10100.pm b/tools/test_modules/m10100.pm
new file mode 100644
index 000000000..10cce0906
--- /dev/null
+++ b/tools/test_modules/m10100.pm
@@ -0,0 +1,55 @@
+#!/usr/bin/env perl
+
+##
+## Author......: See docs/credits.txt
+## License.....: MIT
+##
+
+use strict;
+use warnings;
+
+use Digest::SipHash qw (siphash);
+
+sub module_constraints { [[-1, -1], [-1, -1], [0, 55], [32, 32], [-1, -1]] }
+
+sub module_generate_hash
+{
+  my $word = shift;
+  my $salt = shift;
+
+  my $seed = pack ("H*", $salt);
+
+  my ($hi, $lo) = siphash ($word, $seed);
+
+  my $hi_s = sprintf ("%08x", $hi);
+  my $lo_s = sprintf ("%08x", $lo);
+
+  $hi_s =~ s/^(..)(..)(..)(..)$/$4$3$2$1/;
+  $lo_s =~ s/^(..)(..)(..)(..)$/$4$3$2$1/;
+
+  my $hash = sprintf ("%s%s:2:4:%s", $hi_s, $lo_s, $salt);
+
+  return $hash;
+}
+
+sub module_verify_hash
+{
+  my $line = shift;
+
+  my ($hash, undef, undef, $salt, $word) = split ":", $line;
+
+  next unless (length $hash == 16);
+  next unless (length $salt == 32);
+
+  next unless defined $hash;
+  next unless defined $salt;
+  next unless defined $word;
+
+  $word = pack_if_HEX_notation ($word);
+
+  my $new_hash = module_generate_hash ($word, $salt);
+
+  return ($new_hash, $word);
+}
+
+1;