Add custom QZ Tray fork with pairing key authentication

- Custom fork of QZ Tray 2.2.x with certificate validation bypassed
- Implemented pairing key (HMAC) authentication as replacement
- Modified files: PrintSocketClient.java (certificate check disabled)
- New files: PairingAuth.java, PairingConfigDialog.java
- Excluded build artifacts (out/, lib/javafx*) from repository
- Library JARs included for dependency management

tray/assets/signing/sign-message.asp

@@ -0,0 +1,50 @@
+<%
+'#########################################################
+'#             WARNING   WARNING   WARNING               #
+'#########################################################
+'#                                                       #
+'# This file is intended for demonstration purposes      #
+'# only.                                                 #
+'#                                                       #
+'# It is the SOLE responsibility of YOU, the programmer  #
+'# to prevent against unauthorized access to any signing #
+'# functions.                                            #
+'#                                                       #
+'# Organizations that do not protect against un-         #
+'# authorized signing will be black-listed to prevent    #
+'# software piracy.                                      #
+'#                                                       #
+'# -QZ Industries, LLC                                   #
+'#                                                       #
+'#########################################################
+Option Explicit
+Dim rsa, pem, sig, data, glob, success, password
+' New unlock method for Chilkat - Unregistered version, only good for 30 days
+Set glob = Server.CreateObject("Chilkat_9_5_0.Global")
+success = glob.UnlockBundle("Anything for 30-day trial")
+If (success <> 1) Then
+    Response.Write "<pre>" & Server.HTMLEncode(glob.LastErrorText) & "</pre>"
+    Response.End
+End If
+
+' ActiveX library http://www.chilkatsoft.com/
+Set pem = CreateObject("Chilkat_9_5_0.Pem")
+Set rsa = CreateObject("Chilkat_9_5_0.Rsa")
+
+data = request("request")
+
+password = ""
+success = pem.LoadPemFile("private-key.pem", password)
+If (success <> 1) Then
+    Response.Write "<pre>" & Server.HTMLEncode(pem.LastErrorText) & "</pre>"
+    Response.End
+End If
+
+rsa.ImportPrivateKey(pem.GetPrivateKey(0).getXml())
+rsa.EncodingMode = "base64"
+sig = rsa.SignStringENC(data, "SHA-512") ' Use "SHA-1" for QZ Tray 2.0 and older
+
+Response.ContentType = "text/plain"
+Response.Write Server.HTMLEncode(sig)
+
+%>