Switch to pure esm

index.ts

@@ -15,8 +15,9 @@ function numberToBytesBE(n: bigint, len: number) {
 function os2ip(bytes: Uint8Array): bigint {
   let result = 0n;
   for (let i = 0; i < bytes.length; i++) {
+    const byte = bytes[i]!;
     result <<= 8n;
-    result += BigInt(bytes[i]);
+    result += BigInt(byte);
   }
   return result;
 }

package.json

@@ -2,14 +2,16 @@
   "name": "bls12-381-keygen",
   "version": "0.2.3",
   "description": "Minimal & secure BLS12-381 Key Generation compatible with EIP-2333, EIP-2334",
+  "type": "module",
   "main": "index.js",
+  "module": "index.js",
   "files": [
     "index.js",
     "index.d.ts",
     "index.ts"
   ],
   "scripts": {
-    "build": "tsc -d",
+    "build": "tsc",
     "lint": "prettier --check index.ts",
     "format": "prettier --write index.ts",
     "test": "node test.js"

test.js

@@ -0,0 +1,46 @@
+// @ts-ignore
+import { strictEqual } from 'node:assert';
+import { should } from 'micro-should';
+import { bytesToHex, hexToBytes } from '@noble/hashes/utils';
+import { deriveMaster, deriveChild } from './index.js';
+const vectors = [
+    [
+        "c55257c360c07c72029aebc1b53c05ed0362ada38ead3e3e9efa3708e53495531f09a6987599d18264c1e1c92f2cf141630c7a3c4ab7c81b2f001698e7463b04",
+        "6083874454709270928345386274498605044986640685124978867557563392430687146096",
+        0,
+        "20397789859736650942317412262472558107875392172444076792671091975210932703118",
+    ],
+    [
+        "3141592653589793238462643383279502884197169399375105820974944592",
+        "29757020647961307431480504535336562678282505419141012933316116377660817309383",
+        3141592653,
+        "25457201688850691947727629385191704516744796114925897962676248250929345014287",
+    ],
+    [
+        "0099FF991111002299DD7744EE3355BBDD8844115566CC55663355668888CC00",
+        "27580842291869792442942448775674722299803720648445448686099262467207037398656",
+        4294967295,
+        "29358610794459428860402234341874281240803786294062035874021252734817515685787",
+    ],
+    [
+        "d4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3",
+        "19022158461524446591288038168518313374041767046816487870552872741050760015818",
+        42,
+        "31372231650479070279774297061823572166496564838472787488249775572789064611981",
+    ],
+];
+function bytesToNumberBE(item) {
+    return BigInt(`0x${bytesToHex(item)}`);
+}
+let i = 0;
+for (const vector of vectors) {
+    i++;
+    should(`run vector ${i}`, () => {
+        const [seed, expMaster, childIndex, expChild] = vector;
+        const master = deriveMaster(hexToBytes(seed));
+        const child = deriveChild(master, childIndex);
+        strictEqual(bytesToNumberBE(master), BigInt(expMaster), 'master key is not equal');
+        strictEqual(bytesToNumberBE(child), BigInt(expChild), 'child key is not equal');
+    });
+}
+should.run();

test.ts

@@ -1,7 +1,8 @@
-import { strictEqual } from 'assert';
+// @ts-ignore
+import { strictEqual } from 'node:assert';
 import { should } from 'micro-should';
 import { bytesToHex, hexToBytes } from '@noble/hashes/utils';
-import { deriveMaster, deriveChild } from '.';
+import { deriveMaster, deriveChild } from './index.js';
 
 const vectors: [string, string, number, string][] = [
   [

tsconfig.json

@@ -1,11 +1,25 @@
 {
   "compilerOptions": {
     "target": "es2020",
-    "module": "commonjs",
+    "lib": ["es2020"],
     "strict": true,
+    "sourceMap": false,
+    "allowSyntheticDefaultImports": false,
+    "allowUnreachableCode": false,
+    "esModuleInterop": false,
+    "noFallthroughCasesInSwitch": true,
+    "noImplicitReturns": true,
+    "noUncheckedIndexedAccess": true,
     "noUnusedLocals": true,
-    "esModuleInterop": true,
-    "resolveJsonModule": true
+    "noUnusedParameters": true,
+    "baseUrl": ".",
+
+    "module": "es2020",
+    "outDir": ".",
+    "moduleResolution": "bundler",
+    "declaration": true,
+    "declarationMap": true
   },
-  "exclude": ["node_modules", "**/*.test.ts"]
+  "include": ["index.ts", "test.ts"],
+  "exclude": ["node_modules", "lib"]
 }