From f60f2126875125dd4a0b75e364f7aa11a2b98702 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Mon, 15 May 2017 14:38:24 -0400
Subject: [PATCH] Remove Tweak handling. We are arriving at incorrect result
 for G2 after the first Key Injection, and its not readily apparent why.

---
 threefish.cpp | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/threefish.cpp b/threefish.cpp
index 8ec51762..66bef801 100644
--- a/threefish.cpp
+++ b/threefish.cpp
@@ -272,17 +272,7 @@ void Threefish::Base::UncheckedSetKey(const byte *key, unsigned int keylen, cons
     }
 
     m_tweak.New(3);
-    ConstByteArrayParameter t;
-    if (params.GetValue(Name::Tweak(), t))
-    {
-        CRYPTOPP_ASSERT(t.size() == 16);
-        ::memcpy(m_tweak.begin(), t.begin(), 16);
-        m_tweak[2] = m_tweak[0] + m_tweak[1];
-    }
-    else
-    {
-        ::memset(m_tweak.begin(), 0x00, 24);
-    }
+    ::memset(m_tweak.begin(), 0x00, 24);
 }
 
 void Threefish::Base::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const