From c667de116985840c35ac34b035c58515b0d72211 Mon Sep 17 00:00:00 2001
From: Alex Barney <thealexbarney@gmail.com>
Date: Tue, 31 Jan 2023 23:53:33 -0700
Subject: [PATCH] Handle CryptographicExceptions when decrypting personalized
 tickets

---
 src/LibHac/Tools/Es/Ticket.cs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/LibHac/Tools/Es/Ticket.cs b/src/LibHac/Tools/Es/Ticket.cs
index 19c6dc45..37552769 100644
--- a/src/LibHac/Tools/Es/Ticket.cs
+++ b/src/LibHac/Tools/Es/Ticket.cs
@@ -1,5 +1,6 @@
 using System;
 using System.IO;
+using System.Security.Cryptography;
 using LibHac.Common;
 using LibHac.Common.Keys;
 using LibHac.Tools.Crypto;
@@ -160,7 +161,14 @@ public class Ticket
         if (keySet.ETicketRsaKey.PublicExponent.ItemsRo.IsZeros())
             return null;
 
-        return CryptoOld.DecryptRsaOaep(TitleKeyBlock, keySet.ETicketRsaKeyParams);
+        try
+        {
+            return CryptoOld.DecryptRsaOaep(TitleKeyBlock, keySet.ETicketRsaKeyParams);
+        }
+        catch (CryptographicException)
+        {
+            return null;
+        }
     }
 }