/// <summary> /// Sign a Transaction object /// </summary> /// <param name="txn">Transaction to sign</param> /// <returns>String of signature</returns> private string SignTransaction(Transaction txn) { var signedTxn = _txnProcessor.GetSignedTransaction(txn); var serializedTxn = signedTxn.Serialize(false); var signature = _security.SignTransaction(serializedTxn, _neoWallet); return(signature); }