From d14c793c0a6a059ab40fc06201dd2a275aad1621 Mon Sep 17 00:00:00 2001
From: pinpong <o.nitzschke@gmail.com>
Date: Mon, 23 Oct 2017 21:37:27 +0200
Subject: [PATCH] fixed #45

---
 src/main/java/jota/utils/TrytesConverter.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main/java/jota/utils/TrytesConverter.java b/src/main/java/jota/utils/TrytesConverter.java
index c1c2ac0c..e1445452 100644
--- a/src/main/java/jota/utils/TrytesConverter.java
+++ b/src/main/java/jota/utils/TrytesConverter.java
@@ -72,6 +72,10 @@ public static String toTrytes(String inputString) {
      */
     public static String toString(String inputTrytes) {
 
+        // If input length is odd, return null
+        if (inputTrytes.length() % 2 != 0)
+            return null;
+
         StringBuilder string = new StringBuilder();
 
         for (int i = 0; i < inputTrytes.length(); i += 2) {