diff --git a/tendermint-rs/Cargo.toml b/tendermint-rs/Cargo.toml
index bf94e68..f569bd3 100644
--- a/tendermint-rs/Cargo.toml
+++ b/tendermint-rs/Cargo.toml
@@ -59,6 +59,7 @@ serde_json = "1"
 default = ["serde", "tai64"]
 amino-types = ["prost-amino", "prost-amino-derive"]
 config = ["serde", "serde_json", "toml", "zeroize"]
+keys = ["signatory-dalek"]
 rpc = ["hyper", "rand_os", "serde", "serde_json", "uuid"]
 secret-connection = [
     "amino-types",
diff --git a/tendermint-rs/src/config.rs b/tendermint-rs/src/config.rs
index 9042549..1308983 100644
--- a/tendermint-rs/src/config.rs
+++ b/tendermint-rs/src/config.rs
@@ -123,16 +123,19 @@ impl TendermintConfig {
     }
 
     /// Load `genesis.json` file from the configured location
-    pub fn load_genesis_file<P>(&self, home: &P) -> Result<Genesis, Error>
-    where
-        P: AsRef<Path>,
-    {
+    pub fn load_genesis_file(&self, home: impl AsRef<Path>) -> Result<Genesis, Error> {
         let path = home.as_ref().join(&self.genesis_file);
         let genesis_json = fs::read_to_string(&path)
             .map_err(|e| err!(ErrorKind::Parse, "couldn't open {}: {}", path.display(), e))?;
 
         Ok(serde_json::from_str(genesis_json.as_ref())?)
     }
+
+    /// Load `node_key.json` file from the configured location
+    pub fn load_node_key(&self, home: impl AsRef<Path>) -> Result<NodeKey, Error> {
+        let path = home.as_ref().join(&self.node_key_file);
+        NodeKey::load_json_file(&path)
+    }
 }
 
 /// Database backend
@@ -386,7 +389,7 @@ pub struct P2PConfig {
     /// UPNP port forwarding
     pub upnp: bool,
 
-    /// Path to address boo
+    /// Path to address book
     pub addr_book_file: PathBuf,
 
     /// Set `true` for strict address routability rules
diff --git a/tendermint-rs/src/consensus.rs b/tendermint-rs/src/consensus.rs
index 1f23d91..6f2995e 100644
--- a/tendermint-rs/src/consensus.rs
+++ b/tendermint-rs/src/consensus.rs
@@ -1,6 +1,6 @@
 //! Tendermint consensus
 
-mod params;
+pub mod params;
 mod state;
 
 pub use self::{params::Params, state::State};