Add normalized transaction hash

src/primitives/transaction.cpp

@@ -8,6 +8,7 @@
 #include "hash.h"
 #include "tinyformat.h"
 #include "utilstrencodings.h"
+#include "script/interpreter.h"
 
 std::string COutPoint::ToString() const
 {
@@ -68,6 +69,11 @@ uint256 CMutableTransaction::GetHash() const
     return SerializeHash(*this);
 }
 
+uint256 CMutableTransaction::GetNormalizedHash() const
+{
+    return SignatureHash(CScript(), *this, 0, SIGHASH_ALL);
+}
+
 void CTransaction::UpdateHash() const
 {
     *const_cast<uint256*>(&hash) = SerializeHash(*this);

src/primitives/transaction.h

@@ -338,6 +338,8 @@ struct CMutableTransaction
      * fly, as opposed to GetHash() in CTransaction, which uses a cached result.
      */
     uint256 GetHash() const;
+
+    uint256 GetNormalizedHash() const;
 };
 
 #endif // BITCOIN_PRIMITIVES_TRANSACTION_H