From 844b7023e3222f49f7f2b56d840cd99222fd5e3e Mon Sep 17 00:00:00 2001
From: Chris Coulson <ccoulson@visigo.com>
Date: Fri, 22 Jan 2016 14:31:34 -0500
Subject: [PATCH] Fixes issue 22.  Prevents exceptions from occurring if the
 signature is invalid and returns false instead.

---
 src/Portable.Licensing/License.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Portable.Licensing/License.cs b/src/Portable.Licensing/License.cs
index 9da4dda..44b502a 100644
--- a/src/Portable.Licensing/License.cs
+++ b/src/Portable.Licensing/License.cs
@@ -245,6 +245,10 @@ public bool VerifySignature(string publicKey)
 
                 return signer.VerifySignature(Convert.FromBase64String(signTag.Value));
             }
+            catch
+            {
+                return false;
+            }
             finally
             {
                 xmlData.Add(signTag);