diff --git a/config/identity.go b/config/identity.go
index edac92983..61e11cf5b 100644
--- a/config/identity.go
+++ b/config/identity.go
@@ -5,6 +5,10 @@ import (
 	ic "gx/ipfs/QmVoi5es8D5fNHZDqoW6DgDAEPEV5hQp8GBz161vZXiwpQ/go-libp2p-crypto"
 )
 
+const IdentityTag = "Identity"
+const PrivKeyTag = "PrivKey"
+const PrivKeySelector = IdentityTag + "." + PrivKeyTag
+
 // Identity tracks the configuration of the local node's identity.
 type Identity struct {
 	PeerID  string