From c7e44a2301e4cb8f6bb0dcf0ee14187c68f4036a Mon Sep 17 00:00:00 2001
From: "Jason B. Cox" <contact@jasonbcox.com>
Date: Thu, 3 Apr 2025 09:37:32 -0700
Subject: [PATCH] Use the shared secret cache in PKC ops

---
 src/mesh/CryptoEngine.cpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/mesh/CryptoEngine.cpp b/src/mesh/CryptoEngine.cpp
index 73ffdf40e..5624f0cbc 100644
--- a/src/mesh/CryptoEngine.cpp
+++ b/src/mesh/CryptoEngine.cpp
@@ -79,10 +79,9 @@ bool CryptoEngine::encryptCurve25519(uint32_t toNode, uint32_t fromNode, meshtas
         LOG_DEBUG("Node %d or their public_key not found", toNode);
         return false;
     }
-    if (!setDHPublicKey(remotePublic.bytes)) {
+    if (!setCryptoSharedSecret(remotePublic)) {
         return false;
     }
-    hash(shared_key, 32);
     initNonce(fromNode, packetNum, extraNonceTmp);
 
     // Calculate the shared secret with the destination node and encrypt
@@ -121,10 +120,9 @@ bool CryptoEngine::decryptCurve25519(uint32_t fromNode, meshtastic_UserLite_publ
     }
 
     // Calculate the shared secret with the sending node and decrypt
-    if (!setDHPublicKey(remotePublic.bytes)) {
+    if (!setCryptoSharedSecret(remotePublic)) {
         return false;
     }
-    hash(shared_key, 32);
 
     initNonce(fromNode, packetNum, extraNonce);
     printBytes("Attempt decrypt with nonce: ", nonce, 13);