From 5c50b760a8ae6463ae5350a0ccf28b155bc11967 Mon Sep 17 00:00:00 2001
From: Georgio Nicolas <me@georgio.xyz>
Date: Mon, 26 Jan 2026 15:11:08 +0100
Subject: [PATCH] enable kkt with mceliece (kkt tests pass)

---
 common/nym-lp/src/peer.rs    | 14 ++++++++------
 common/nym-lp/src/session.rs |  2 +-
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/common/nym-lp/src/peer.rs b/common/nym-lp/src/peer.rs
index 94d1f9f392..ecf9d230ad 100644
--- a/common/nym-lp/src/peer.rs
+++ b/common/nym-lp/src/peer.rs
@@ -59,12 +59,12 @@ impl LpLocalPeer {
 
     pub fn with_mceliece_keypair(
         mut self,
-        decapsulation_key: &MlKem768PrivateKey,
-        encapsulation_key: &MlKem768PublicKey,
+        decapsulation_key: libcrux_psq::classic_mceliece::SecretKey,
+        encapsulation_key: libcrux_psq::classic_mceliece::PublicKey,
     ) -> Self {
-        self.mlkem = Some((
-            Arc::new(DecapsulationKey::MlKem768(decapsulation_key.clone())),
-            Arc::new(EncapsulationKey::MlKem768(encapsulation_key.clone())),
+        self.mceliece = Some((
+            Arc::new(DecapsulationKey::McEliece(decapsulation_key)),
+            Arc::new(EncapsulationKey::McEliece(encapsulation_key)),
         ));
         self
     }
@@ -190,13 +190,14 @@ pub fn mock_peer() -> LpLocalPeer {
 
 #[cfg(test)]
 pub fn random_peer<'a, R: rand::CryptoRng + rand::RngCore>(rng: &mut R) -> LpLocalPeer {
-    use nym_kkt::key_utils::generate_keypair_mlkem;
+    use nym_kkt::key_utils::{generate_keypair_mceliece, generate_keypair_mlkem};
 
     let ed25519 = Arc::new(ed25519::KeyPair::new(rng));
     let x25519 = Arc::new(ed25519.to_x25519());
     let kem_psq = Some(x25519.clone());
 
     let mlkem_keypair = generate_keypair_mlkem(&mut rand09::rng());
+    let mceliece_keypair = generate_keypair_mceliece(&mut rand09::rng());
 
     LpLocalPeer {
         ed25519,
@@ -206,6 +207,7 @@ pub fn random_peer<'a, R: rand::CryptoRng + rand::RngCore>(rng: &mut R) -> LpLoc
         mceliece: None,
     }
     .with_mlkem_keypair(&mlkem_keypair.0, &mlkem_keypair.1)
+    .with_mceliece_keypair(mceliece_keypair.0, mceliece_keypair.1)
 }
 
 #[cfg(test)]
diff --git a/common/nym-lp/src/session.rs b/common/nym-lp/src/session.rs
index d841ff0d6f..8caf7e1171 100644
--- a/common/nym-lp/src/session.rs
+++ b/common/nym-lp/src/session.rs
@@ -615,7 +615,7 @@ impl LpSession {
 
         // georgio this needs to be moved one level up (maybe chosen in LPSession)
         let ciphersuite = match Ciphersuite::resolve_ciphersuite(
-            KEM::MlKem768,
+            KEM::McEliece,
             HashFunction::Blake3,
             SignatureScheme::Ed25519,
             None,