From 7e1e37b0fa95f023c502226aff3e5091be97f559 Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@zoso.dev>
Date: Sun, 30 Nov 2025 00:44:00 -0800
Subject: [PATCH] Fix bit shifting and remove redundant promise return.

---
 src/lib/crypto/bip44.ts | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/lib/crypto/bip44.ts b/src/lib/crypto/bip44.ts
index 3e25626..cbb9114 100644
--- a/src/lib/crypto/bip44.ts
+++ b/src/lib/crypto/bip44.ts
@@ -120,7 +120,8 @@ export class Bip44 {
 	static ser256 (integer: bigint): Uint8Array<ArrayBuffer> {
 		let bytes = new Uint8Array(32)
 		for (let i = bytes.byteLength - 1; i >= 0; i--) {
-			bytes[i] = Number((integer >> BigInt(i * 8)) & 0xffn)
+			bytes[i] = Number(integer & 0xffn)
+			integer >>= 8n
 		}
 		return bytes
 	}
@@ -137,9 +138,6 @@ export class Bip44 {
 		return crypto.subtle.importKey('raw', key, { name: 'HMAC', hash: 'SHA-512' }, false, ['sign'])
 			.then(pk => {
 				return crypto.subtle.sign('HMAC', pk, data)
-					.then(signature => {
-						return signature
-					})
 			})
 	}
 }
-- 
2.47.3