diff --git a/libp2p/host/basic_host.py b/libp2p/host/basic_host.py
index cd0d289..48c322b 100644
--- a/libp2p/host/basic_host.py
+++ b/libp2p/host/basic_host.py
@@ -67,6 +67,9 @@ class BasicHost(IHost):
     def get_public_key(self) -> PublicKey:
         return self.peerstore.pubkey(self.get_id())
 
+    def get_private_key(self) -> PublicKey:
+        return self.peerstore.privkey(self.get_id())
+
     def get_network(self) -> INetwork:
         """
         :return: network instance of host
diff --git a/libp2p/host/host_interface.py b/libp2p/host/host_interface.py
index cfba82c..5e28fda 100644
--- a/libp2p/host/host_interface.py
+++ b/libp2p/host/host_interface.py
@@ -24,6 +24,12 @@ class IHost(ABC):
         :return: the public key belonging to the peer
         """
 
+    @abstractmethod
+    def get_private_key(self) -> PublicKey:
+        """
+        :return: the private key belonging to the peer
+        """
+
     @abstractmethod
     def get_network(self) -> INetwork:
         """