From: Chris Duncan <chris@zoso.dev>
Date: Mon, 1 Dec 2025 06:22:16 +0000 (-0800)
Subject: Use secp256k1 N from class so it is only defined once.
X-Git-Url: https://git.codecow.com/?a=commitdiff_plain;h=19989cea485813b36cf2eee98b8133419ab23f99;p=libnemo.git

Use secp256k1 N from class so it is only defined once.
---

diff --git a/src/lib/crypto/bip44.ts b/src/lib/crypto/bip44.ts
index 2e08cea..006f7d4 100644
--- a/src/lib/crypto/bip44.ts
+++ b/src/lib/crypto/bip44.ts
@@ -14,9 +14,6 @@ type Curve = 'Bitcoin seed' | 'ed25519 seed'
 export class Bip44 {
 	static get BIP44_PURPOSE (): 44 { return 44 }
 	static get HARDENED_OFFSET (): 0x80000000 { return 0x80000000 }
-	static get SECP256K1_N (): bigint {
-		return 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141n
-	}
 
 	/**
 	* Derives a private child key for a coin by following the specified BIP-32 and
@@ -95,11 +92,11 @@ export class Bip44 {
 					return ({ privateKey: IL, chainCode: IR })
 				} else {
 					const ILparsed = this.parse256(new Uint8Array(IL))
-					if (ILparsed >= this.SECP256K1_N) {
+					if (ILparsed >= Secp256k1.N) {
 						throw new Error('Invalid child key is greater than the order of the curve')
 					}
 					const pkParsed = this.parse256(pk)
-					const childKey = (ILparsed + pkParsed) % this.SECP256K1_N
+					const childKey = (ILparsed + pkParsed) % Secp256k1.N
 					if (childKey === 0n) {
 						throw new Error('Invalid child key is zero')
 					}