From f7fa648f77d7c087b5591ee709fc0272f7244f27 Mon Sep 17 00:00:00 2001
From: John Safranek <john@wolfssl.com>
Date: Thu, 12 Apr 2018 17:33:01 -0700
Subject: [PATCH] Test Fixes 1. Found a problem in AES-GCM encrypt where it
 could step on the ciphertext with the correct sized IV.

---
 wolfcrypt/src/aes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wolfcrypt/src/aes.c b/wolfcrypt/src/aes.c
index 1eb69c813..b9579c30d 100644
--- a/wolfcrypt/src/aes.c
+++ b/wolfcrypt/src/aes.c
@@ -9041,11 +9041,11 @@ int wc_AesGcmEncrypt_ex(Aes* aes, byte* out, const byte* in, word32 sz,
     }
 
     if (ret == 0) {
+        XMEMCPY(ivOut, aes->reg, ivOutSz);
         ret = wc_AesGcmEncrypt(aes, out, in, sz,
                                (byte*)aes->reg, ivOutSz,
                                authTag, authTagSz,
                                authIn, authInSz);
-        XMEMCPY(ivOut, aes->reg, ivOutSz);
         IncCtr((byte*)aes->reg, ivOutSz);
     }