From 2a2506f335e148a8c1064b2e4aa35d359abbe307 Mon Sep 17 00:00:00 2001
From: Maarten Zuidhoorn <maarten@zuidhoorn.com>
Date: Tue, 14 May 2024 12:02:28 +0200
Subject: [PATCH] Remove unneeded modular reduction in CIP-3 private key
 derivation

---
 src/derivers/cip3.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/derivers/cip3.ts b/src/derivers/cip3.ts
index ad9aeba0..31a3daeb 100644
--- a/src/derivers/cip3.ts
+++ b/src/derivers/cip3.ts
@@ -184,7 +184,7 @@ export const derivePrivateKey = async ({
   // 8[ZL] + kPL
   const childKl = add(trunc28Mul8(zl), parentKl);
   // ZR + kPR
-  const childKr = add(zr, mod2Pow256(parentKr));
+  const childKr = add(zr, parentKr);
   return concatBytes([childKl, childKr]);
 };