From 05eb75d9320a19b16b1bd522be22bdf81c246905 Mon Sep 17 00:00:00 2001
From: Aaron Kaiser <a_kaiser@posteo.de>
Date: Tue, 27 Aug 2024 17:36:53 +0200
Subject: [PATCH] feat: add mlkem decap

---
 src/mlkem.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/mlkem.rs b/src/mlkem.rs
index 41ed64c..cb5afd8 100644
--- a/src/mlkem.rs
+++ b/src/mlkem.rs
@@ -94,3 +94,15 @@ pub fn mlkem_encap(pk: &MLKEMPubKey) -> (MLKEMCiphertext, MLKEMSharedKey) {
 
     (ct, ss)
 }
+
+pub fn mlkem_decap(ct: &MLKEMCiphertext, sk: &MLKEMPrivKey) -> MLKEMSharedKey {
+    let ss = MLKEMSharedKey(SharedPtr::<32>::new().unwrap());
+
+    let mut agent = MLKEMAGENT.lock().unwrap();
+
+    unsafe {
+        agent.perform_ipc_call(1, &[ss.0.get_offset(), ct.0.get_offset(), sk.0.get_offset()]);
+    }
+
+    ss
+}