diff --git a/onionr/communicator.py b/onionr/communicator.py
index 87074ddb..41e1ff62 100755
--- a/onionr/communicator.py
+++ b/onionr/communicator.py
@@ -46,6 +46,16 @@ class OnionrCommunicate:
         r = requests.get(url, headers=headers)
         response = r.text
         return response
+    def shareHMAC(self, peerID, key):
+        '''This function shares an HMAC key to a peer
+        '''
+        return
+    def getPeerProof(self, peerID):
+        '''This function gets the current peer proof requirement'''
+        return
+    def sendPeerProof(self, peerID, data):
+        '''This function sends the proof result to a peer previously fetched with getPeerProof'''
+        return
 shouldRun = False
 debug = False
 developmentMode = False
diff --git a/onionr/core.py b/onionr/core.py
index 04dc0b76..ee282721 100644
--- a/onionr/core.py
+++ b/onionr/core.py
@@ -148,3 +148,9 @@ class Core:
         conn.commit()
         conn.close()
         return
+    
+    def generateHMAC(self):
+        '''
+        generate and return an HMAC key
+        '''
+        return
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