From de7909eb34a8edbe72cce9a4e4a3516c194dcf17 Mon Sep 17 00:00:00 2001
From: Maschell <Maschell@gmx.de>
Date: Wed, 10 Apr 2019 19:59:56 +0200
Subject: [PATCH] Throw on IOException if the FST length is not aligned to 16
 before decrypting.

---
 src/de/mas/wiiu/jnus/NUSTitleLoader.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/de/mas/wiiu/jnus/NUSTitleLoader.java b/src/de/mas/wiiu/jnus/NUSTitleLoader.java
index 6363848..e71b213 100644
--- a/src/de/mas/wiiu/jnus/NUSTitleLoader.java
+++ b/src/de/mas/wiiu/jnus/NUSTitleLoader.java
@@ -72,6 +72,9 @@ public class NUSTitleLoader {
 
         if (fstContent.isEncrypted()) {
             AESDecryption aesDecryption = new AESDecryption(ticket.getDecryptedKey(), new byte[0x10]);
+            if (fstBytes.length % 0x10 != 0) {
+                throw new IOException("FST length is not align to 16");
+            }
             fstBytes = aesDecryption.decrypt(fstBytes);
         }