The Tor Browser / file revision

 #! /usr/bin/perl

 # This Source Code Form is subject to the terms of the Mozilla Public

 # License, v. 2.0. If a copy of the MPL was not distributed with this

 # file, You can obtain one at http://mozilla.org/MPL/2.0/.

 sub decode {

     read (STDIN, $buffer, $ENV{'CONTENT_LENGTH'});

     @pairs = split(/&/, $buffer);

     foreach $pair (@pairs)

     {

         ($name, $value) = split(/=/, $pair);

         $value =~tr/+/ /;

         $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;

         $FORM{$name} = $value;

 #        print "name=$name  value=$value<BR>\n";

     }

 }

 print "Content-type: text/html\n\n";

 &decode();

 $dataSignature = $FORM{'dataSignature'};

 $dataToSign = $FORM{'dataToSign'};

 unlink("signature");

 open(FILE1,">signature") || die("Cannot open file for writing\n");

 print FILE1 "$dataSignature";

 close(FILE1);

 unlink("data");

 open(FILE2,">data") || die("Cannot open file for writing\n");

 print FILE2 "$dataToSign";

 close(FILE2);

 print "<BR><B>Signed Data:</B><BR>", "$dataToSign", "<BR>";

 print "<BR><b>Verification Info:</b><BR>";

 $verInfo = `./signver -D . -s signature -d data -v`;

 print "<font color=red><b>$verInfo</b></font><BR>";

 print "<BR><B>Signature Data:</B><BR>", "$dataSignature", "<BR>";

 print "<BR><b>Signature Info:</b><BR>";

 foreach $line (`./signver -s signature -A`) {

      print "$line<BR>\n";

 }

 print "<b>End of Info</b><BR>";