lnd+watchtower: rename NodePrivKey to NodeKeyECDH

lnd.go

@@ -570,7 +570,7 @@ func Main(cfg *Config, lisCfg ListenerCfg, shutdownChan <-chan struct{}) error {
 					lnwallet.WitnessPubKey, false,
 				)
 			},
-			NodePrivKey: towerPrivKey,
+			NodeKeyECDH: towerPrivKey,
 			PublishTx:   activeChainControl.wallet.PublishTransaction,
 			ChainHash:   *activeNetParams.GenesisHash,
 		}

watchtower/config.go

@@ -63,9 +63,9 @@ type Config struct {
 	// successfully sent funds can be received.
 	NewAddress func() (btcutil.Address, error)
 
-	// NodePrivKey is private key to be used in accepting new brontide
-	// connections.
-	NodePrivKey *btcec.PrivateKey
+	// NodeKeyECDH is the ECDH capable wrapper of the key to be used in
+	// accepting new brontide connections.
+	NodeKeyECDH *btcec.PrivateKey
 
 	// PublishTx provides the ability to send a signed transaction to the
 	// network.

watchtower/standalone.go

@@ -72,7 +72,7 @@ func New(cfg *Config) (*Standalone, error) {
 	listeners := make([]net.Listener, 0, len(cfg.ListenAddrs))
 	for _, listenAddr := range cfg.ListenAddrs {
 		listener, err := brontide.NewListener(
-			cfg.NodePrivKey, listenAddr.String(),
+			cfg.NodeKeyECDH, listenAddr.String(),
 		)
 		if err != nil {
 			return nil, err
@@ -85,7 +85,7 @@ func New(cfg *Config) (*Standalone, error) {
 	server, err := wtserver.New(&wtserver.Config{
 		ChainHash:     cfg.ChainHash,
 		DB:            cfg.DB,
-		NodePrivKey:   cfg.NodePrivKey,
+		NodeKeyECDH:   cfg.NodeKeyECDH,
 		Listeners:     listeners,
 		ReadTimeout:   cfg.ReadTimeout,
 		WriteTimeout:  cfg.WriteTimeout,
@@ -190,7 +190,7 @@ func (w *Standalone) createNewHiddenService() error {
 //
 // NOTE: Part of the watchtowerrpc.WatchtowerBackend interface.
 func (w *Standalone) PubKey() *btcec.PublicKey {
-	return w.cfg.NodePrivKey.PubKey()
+	return w.cfg.NodeKeyECDH.PubKey()
 }
 
 // ListeningAddrs returns the listening addresses where the watchtower server

watchtower/wtclient/client_test.go

@@ -416,7 +416,7 @@ func newHarness(t *testing.T, cfg harnessCfg) *testHarness {
 		DB:           serverDB,
 		ReadTimeout:  timeout,
 		WriteTimeout: timeout,
-		NodePrivKey:  privKey,
+		NodeKeyECDH:  privKey,
 		NewAddress: func() (btcutil.Address, error) {
 			return addr, nil
 		},
@@ -519,7 +519,7 @@ func (h *testHarness) startClient() {
 		h.t.Fatalf("Unable to resolve tower TCP addr: %v", err)
 	}
 	towerAddr := &lnwire.NetAddress{
-		IdentityKey: h.serverCfg.NodePrivKey.PubKey(),
+		IdentityKey: h.serverCfg.NodeKeyECDH.PubKey(),
 		Address:     towerTCPAddr,
 	}
 

watchtower/wtserver/server.go

@@ -33,9 +33,9 @@ type Config struct {
 	// storing state updates.
 	DB DB
 
-	// NodePrivKey is private key to be used in accepting new brontide
-	// connections.
-	NodePrivKey *btcec.PrivateKey
+	// NodeKeyECDH is the the ECDH capable wrapper of the key to be used in
+	// accepting new brontide connections.
+	NodeKeyECDH *btcec.PrivateKey
 
 	// Listeners specifies which address to which clients may connect.
 	Listeners []net.Listener