Added hash-mode: MS Office 2016 - SheetProtection

tools/test_modules/m29700.pm

@@ -0,0 +1,72 @@
+#!/usr/bin/env perl
+
+##
+## Author......: See docs/credits.txt
+## License.....: MIT
+##
+
+use strict;
+use warnings;
+
+use MIME::Base64 qw (encode_base64 decode_base64);
+use Digest::SHA qw (sha512);
+use Encode;
+
+sub module_constraints { [[0, 64], [16, 16], [-1, -1], [-1, -1], [-1, -1]] }
+
+sub module_generate_hash
+{
+  my $word  = shift;
+  my $salt  = shift;
+  my $iter  = shift // 100000;
+
+  my $tmp = sha512 ($salt . encode ("UTF-16LE", $word));
+
+  for (my $i = 0; $i < $iter; $i++)
+  {
+    my $num32 = pack ("L", $i);
+
+    $tmp = sha512 ($tmp . $num32);
+  }
+
+  my $salt_b64 = encode_base64 ($salt, "");
+  my $digest_b64 = encode_base64 ($tmp, "");
+
+  my $hash = sprintf ("\$office\$%d\$0\$%d\$%s\$%s", 2016, $iter, $salt_b64, $digest_b64);
+
+  return $hash;
+}
+
+sub module_verify_hash
+{
+  my $line = shift;
+
+  my ($hash, $word) = split ":", $line;
+
+  return unless defined $hash;
+  return unless defined $word;
+
+  my @data = split ('\$', $hash);
+
+  return unless scalar @data == 7;
+  return unless (shift @data eq 'office');
+  return unless (shift @data eq '2016');
+  return unless (shift @data eq '0');
+
+  my $iter   = shift @data;
+  my $salt   = shift @data;
+  my $digest = shift @data;
+
+  return unless defined $iter;
+  return unless defined $salt;
+  return unless defined $digest;
+
+  return unless length ($salt) == 24;
+  return unless length ($digest) == 88;
+
+  my $new_hash = module_generate_hash ($word, $salt, $iter);
+
+  return ($new_hash, $word);
+}
+
+1;