From c4794df16c0376050a9aff613d7b2327e9087f65 Mon Sep 17 00:00:00 2001
From: Peter Dettman <peter.dettman@bouncycastle.org>
Date: Sat, 10 Jun 2017 20:28:52 +0700
Subject: Added byte[] return when macBlock not set.

---
 crypto/src/crypto/modes/OCBBlockCipher.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'crypto/src')

diff --git a/crypto/src/crypto/modes/OCBBlockCipher.cs b/crypto/src/crypto/modes/OCBBlockCipher.cs
index e7dc466e6..91fdfff18 100644
--- a/crypto/src/crypto/modes/OCBBlockCipher.cs
+++ b/crypto/src/crypto/modes/OCBBlockCipher.cs
@@ -237,7 +237,9 @@ namespace Org.BouncyCastle.Crypto.Modes
 
         public virtual byte[] GetMac()
         {
-            return Arrays.Clone(macBlock);
+            return macBlock == null
+                ? new byte[macSize]
+                : Arrays.Clone(macBlock);
         }
 
         public virtual int GetOutputSize(int len)
-- 
cgit 1.5.1