Generate PrivValidator file when it doesn't exist already

node/id.go

@@ -0,0 +1,34 @@
+package node
+
+import (
+	acm "github.com/tendermint/tendermint/account"
+	"time"
+)
+
+type NodeID struct {
+	Name   string
+	PubKey acm.PubKey
+}
+
+type PrivNodeID struct {
+	NodeID
+	PrivKey acm.PrivKey
+}
+
+type NodeGreeting struct {
+	NodeID
+	Version string
+	Network string
+	Message string
+	Time    time.Time
+}
+
+type SignedNodeGreeting struct {
+	NodeGreeting
+	Signature acm.Signature
+}
+
+func (pnid *PrivNodeID) SignGreeting() *SignedNodeGreeting {
+	//greeting := NodeGreeting{}
+	return nil
+}