From: Chris Duncan <chris@codecow.com>
Date: Fri, 15 May 2026 08:17:00 +0000 (-0700)
Subject: Change child key to async since HMAC is anyway.
X-Git-Url: https://git.codecow.com/?a=commitdiff_plain;h=f1a88dad2c0c8772fc4c4e5bc3ddaaf7565845ac;p=libnemo.git

Change child key to async since HMAC is anyway.
---

diff --git a/src/lib/crypto/bip44.ts b/src/lib/crypto/bip44.ts
index 929badc..bdb7fb7 100644
--- a/src/lib/crypto/bip44.ts
+++ b/src/lib/crypto/bip44.ts
@@ -106,11 +106,11 @@ function CKDpriv (curve: Curve, { privateKey, chainCode }: ExtendedKey, index?:
 		.then(I => childKey(curve, pk, I))
 }
 
-function childKey (curve: Curve, pk: Bytes, I: ArrayBuffer): ExtendedKey {
+function childKey (curve: Curve, pk: Bytes, I: ArrayBuffer): Promise<ExtendedKey> {
 	const IL = I.slice(0, I.byteLength / 2)
 	const IR = I.slice(I.byteLength / 2)
 	if (curve === 'ed25519 seed') {
-		return ({ privateKey: IL, chainCode: IR })
+		return Promise.resolve({ privateKey: IL, chainCode: IR })
 	}
 	const ILparsed = parse256(new Uint8Array(IL))
 	if (ILparsed >= Point.CURVE().n) {
@@ -121,7 +121,7 @@ function childKey (curve: Curve, pk: Bytes, I: ArrayBuffer): ExtendedKey {
 	if (ck === 0n) {
 		throw new Error('Invalid child key is zero')
 	}
-	return ({ privateKey: ser256(ck).buffer, chainCode: IR })
+	return Promise.resolve({ privateKey: ser256(ck).buffer, chainCode: IR })
 }
 
 function ser32 (integer: number): Bytes {