diff --git a/src/lib.rs b/src/lib.rs
index bce4f7a..ab18a36 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -52,13 +52,25 @@ pub fn x25519_keygen<'a>() -> (X25519PrivKey<'a>, X25519PubKey<'a>) {
     (sk, pk)
 }
 
+pub fn x22519_pubkey<'a>(sk: &X25519PrivKey) -> X25519PubKey<'a> {
+    let pk = X25519PubKey(SharedPtr::<32>::new().unwrap());
+
+    let mut agent = AGENT.lock().unwrap();
+
+    unsafe {
+        agent.perform_ipc_call(1, &[sk.0.get_offset(), pk.0.get_offset()]);
+    }
+
+    pk
+}
+
 pub fn x25519<'a>(sk: &X25519PrivKey, pk: &X25519PubKey) -> X25519SharedKey<'a> {
     let out = X25519SharedKey(SharedPtr::<32>::new().unwrap());
 
     let mut agent = AGENT.lock().unwrap();
 
     unsafe {
-        agent.perform_ipc_call(1, &[out.0.get_offset(), sk.0.get_offset(), pk.0.get_offset()]);
+        agent.perform_ipc_call(2, &[out.0.get_offset(), sk.0.get_offset(), pk.0.get_offset()]);
     }
 
     out