Add functionality in test.pl to allow empty hash returns. This is required to enable hash-mode depending password length checks. NTLM supports just 27 characters in optimized mode, but single mode would produce 32, resulting in a non found password

modules/module_01000.c

@@ -8,7 +8,6 @@
 #include "modules.h"
 #include "bitops.h"
 #include "convert.h"
-#include "interface.h"
 #include "shared.h"
 
 static const u32   MODULE_VERSION_CURRENT = 520;

src/Makefile

@@ -371,6 +371,7 @@ default: $(HASHCAT_FRONTEND)
 clean:
 	$(RM) -f $(HASHCAT_FRONTEND)
 	$(RM) -f $(HASHCAT_LIBRARY)
+	$(RM) -f modules/*.dll
 	$(RM) -f modules/*.so
 	$(RM) -f obj/*.o
 	$(RM) -f *.bin *.exe

tools/test.pl

@@ -28,6 +28,9 @@ my $module = sprintf ("m%05d.pm", $MODE);
 
 eval { require $module; } or die "Could not load test module: $module\n$@";
 
+exists &{module_generate_hash} or die "Module function 'module_generate_hash' not found\n";
+exists &{module_verify_hash}   or die "Module function 'module_verify_hash' not found\n";
+
 if ($TYPE eq 'single')
 {
   single (@ARGV);
@@ -49,8 +52,6 @@ else
 
 sub single
 {
-  exists &{module_generate_hash} or die "Module function not found\n";
-
   my $len = shift;
 
   undef $len unless is_count ($len);
@@ -62,6 +63,7 @@ sub single
     my $cur_len = $len // $i;
 
     my $word = random_numeric_string ($cur_len);
+
     my $hash = module_generate_hash ($word);
 
     next unless defined $hash;
@@ -72,15 +74,13 @@ sub single
 
 sub passthrough
 {
-  exists &{module_generate_hash} or die "Module function not found\n";
+  while (my $word = <>)
-
-  while (<>)
   {
-    chomp $_;
+    chomp $word;
 
-    next if length $_ > 256;
+    my $hash = module_generate_hash ($word);
 
-    my $hash = module_generate_hash ($_);
+    next unless defined $hash;
 
     print "$hash\n";
   }
@@ -88,8 +88,6 @@ sub passthrough
 
 sub verify
 {
-  exists &{module_verify_hash} or die "Module function not found\n";
-
   my $hashes_file = shift;
   my $cracks_file = shift;
   my $out_file    = shift;
@@ -98,33 +96,35 @@ sub verify
 
   my $hashlist;
 
-  while (<IN>)
+  while (my $line = <IN>)
   {
-    s/[\n\r]*$//;
+    $line =~ s/\n$//;
+    $line =~ s/\r$//;
 
-    push (@{$hashlist}, $_);
+    push (@{$hashlist}, $line);
   }
 
-  close IN;
+  close (IN);
 
   open (IN,  '<', $cracks_file) or die "$cracks_file: $!\n";
   open (OUT, '>', $out_file   ) or die "$out_file: $!\n";
 
-  while (<IN>)
+  while (my $line = <IN>)
   {
-    s/[\n\r]*$//;
+    $line =~ s/\n$//;
+    $line =~ s/\r$//;
 
-    my $hash = module_verify_hash ($_);
+    my $hash = module_verify_hash ($line);
 
     next unless defined $hash;
 
     next unless is_in_array ($hash, $hashlist);
 
-    print OUT "$_\n";
+    print OUT "$line\n";
   }
 
-  close IN;
+  close (IN);
-  close OUT;
+  close (OUT);
 }
 
 sub is_in_array

tools/test.sh

@@ -5,7 +5,7 @@
 ## License.....: MIT
 ##
 
-OPTS="--quiet --force --potfile-disable --runtime 400 --hwmon-disable"
+OPTS="--quiet --force --potfile-disable --runtime 400 --hwmon-disable -O"
 
 TDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 

tools/test_modules/m01000.pm

@@ -15,6 +15,8 @@ sub module_generate_hash
 {
   my $word = shift;
 
+  return if length $word > 27;
+
   my $hash = md4_hex (encode ("UTF-16LE", $word));
 
   return $hash;
@@ -33,6 +35,8 @@ sub module_verify_hash
 
   my $new_hash = module_generate_hash ($word);
 
+  return unless defined $new_hash;
+
   return unless $new_hash eq $hash;
 
   return $new_hash;