GenerateCapsule: error: can not encode FMP Auth Header
The system cannot find the file specified.

Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Zhiju.Fan <zhijux.fan@intel.com>
---
 BaseTools/Source/Python/Capsule/GenerateCapsule.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/BaseTools/Source/Python/Capsule/GenerateCapsule.py b/BaseTools/Source/Python/Capsule/GenerateCapsule.py
index ab1c811b22..4de3635298 100644
--- a/BaseTools/Source/Python/Capsule/GenerateCapsule.py
+++ b/BaseTools/Source/Python/Capsule/GenerateCapsule.py
@@ -126,7 +126,7 @@ def SignPayloadOpenSsl (Payload, ToolPath, SignerPrivateCertFile, OtherPublicCer
     try:
         Process = subprocess.Popen (Command, stdin = subprocess.PIPE, stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = True)
         Result = Process.communicate(input = Payload)
-        Signature = Result[0].decode(encoding='utf-8', errors='ignore')
+        Signature = Result[0]
     except:
         raise ValueError ('GenerateCapsule: error: can not run openssl.')
 
-- 
2.14.1.windows.1