From 269e4f61194a435abab8e19f0321eb095dd23dd0 Mon Sep 17 00:00:00 2001
From: Minh Doan <minh@harmony.one>
Date: Mon, 25 Feb 2019 15:15:49 -0800
Subject: [PATCH] fix private key constant

---
 internal/utils/contract/constants.go | 23 ++++++++++++++++-------
 node/contract.go                     |  3 ++-
 2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/internal/utils/contract/constants.go b/internal/utils/contract/constants.go
index 27f234b84..aa5617508 100644
--- a/internal/utils/contract/constants.go
+++ b/internal/utils/contract/constants.go
@@ -1,7 +1,9 @@
 package contract
 
 import (
-	"github.com/ethereum/go-ethereum/common"
+	"crypto/ecdsa"
+	"strings"
+
 	"github.com/ethereum/go-ethereum/crypto"
 )
 
@@ -12,15 +14,22 @@ type DeployAccount struct {
 	Public  string
 }
 
-// GenesisBeaconAccount is the account which creates contract account.
-var GenesisBeaconAccount = DeployAccount{
-	Address: "0x4e464afF0aB44780fC9A008AC890047BcbDf376f",
-	Private: "b167c74da42202fc2093f8e2ed8171b4ad67d095595ac655fc56df236cad9714",
-	Public:  "0x4e464afF0aB44780fC9A008AC890047BcbDf376f",
+// // GenesisBeaconAccount is the account which creates contract account.
+// var GenesisBeaconAccount = DeployAccount{
+// 	Address: "0x4e464afF0aB44780fC9A008AC890047BcbDf376f",
+// 	Private: "b167c74da42202fc2093f8e2ed8171b4ad67d095595ac655fc56df236cad9714",
+// 	Public:  "0x4e464afF0aB44780fC9A008AC890047BcbDf376f",
+// }
+
+func BeaconAccountPriKey() *ecdsa.PrivateKey {
+	prikey, _ := ecdsa.GenerateKey(crypto.S256(), strings.NewReader("Deposit Smart Contract Key"))
+	return prikey
 }
 
+var GenesisBeaconAccountPriKey = BeaconAccountPriKey()
+
 // DeployedContractAddress is the deployed contract address of the staking smart contract in beacon chain.
-var DeployedContractAddress = crypto.CreateAddress(common.HexToAddress(GenesisBeaconAccount.Address), uint64(0))
+var DeployedContractAddress = crypto.CreateAddress(crypto.PubkeyToAddress(GenesisBeaconAccountPriKey.PublicKey), uint64(0))
 
 // FakeAccounts is the accounts only used for development purpose.
 var FakeAccounts = [...]DeployAccount{
diff --git a/node/contract.go b/node/contract.go
index e754ec655..6f45c4250 100644
--- a/node/contract.go
+++ b/node/contract.go
@@ -12,6 +12,7 @@ import (
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/harmony-one/harmony/core/types"
 	"github.com/harmony-one/harmony/internal/utils/contract"
+	contract_constants "github.com/harmony-one/harmony/internal/utils/contract"
 	"golang.org/x/crypto/sha3"
 )
 
@@ -27,7 +28,7 @@ const (
 func (node *Node) AddStakingContractToPendingTransactions() {
 	// Add a contract deployment transaction
 	//Generate contract key and associate funds with the smart contract
-	priKey, _ := ecdsa.GenerateKey(crypto.S256(), strings.NewReader("Deposit Smart Contract Key"))
+	priKey := contract_constants.GenesisBeaconAccountPriKey
 	contractAddress := crypto.PubkeyToAddress(priKey.PublicKey)
 	//Initially the smart contract should have minimal funds.
 	contractFunds := big.NewInt(0)