Removing all crypto imports and relying on runtime support(node/v8)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "totp-basic",
-  "version": "0.0.8",
+  "version": "0.0.9",
   "description": "A Basic TOTP (Time-based One-time Password Algorithm) implementation in TypeScript for use with cloudflare-workers",
   "type": "module",
   "main": "index.js",

src/index.ts

@@ -1,5 +1,3 @@
-const { subtle } = require('crypto').webcrypto;
-
 export const generateTOTP = async (secret: string): Promise<string> => {
     const time = Math.floor(Date.now() / 1000); // get the current time in seconds
     const timeWindow = 30; // time window in seconds
@@ -9,14 +7,14 @@ export const generateTOTP = async (secret: string): Promise<string> => {
     counter[6] = (timeStep >> 8) & 0xff;
     counter[5] = (timeStep >> 16) & 0xff;
     counter[4] = (timeStep >> 24) & 0xff;
-    const hmacKey = await subtle.importKey(
+    const hmacKey = await crypto.subtle.importKey(
         'raw', // format of the secret key
         new TextEncoder().encode(secret), // the secret key as a byte array
         { name: 'HMAC', hash: { name: 'SHA-1' } }, // algorithm to use for HMAC
         false, // not extractable
         ['sign'] // only need the key for signing
     );
-    const hmacResult = await subtle.sign(
+    const hmacResult = await crypto.subtle.sign(
         'HMAC', // HMAC algorithm
         hmacKey,
         counter // the counter as data to sign

test/index.spec.ts

@@ -1,8 +1,17 @@
 import {describe, it, expect} from "vitest";
 import {verifyTOTP, generateTOTP} from "../src";
+// @ts-ignore
 
 describe("TOTP generation should work by specs", async () => {
     it("should generate a valid OTP", async () => {
+        try {
+            if(global.crypto === undefined)
+                { // @ts-ignore
+                    global.crypto = await import('node:crypto');
+                }
+        } catch (err) {
+            console.error('crypto support is disabled in your test-runtime!');
+        }
         const secret = 'mysecret';
         const otp = await generateTOTP(secret);
         expect(otp).toMatch(/^\d{6}$/); // OTP should be a 6-digit string

tsconfig.json

@@ -1,13 +1,19 @@
 {
   "compilerOptions": {
     "moduleResolution": "node",
-    "module": "esnext",
-    "target": "es2018",
+    "module": "es2020",
+    "target": "es2020",
     "declaration": true,
     "outDir": "dist",
+    "strict": true,
+    "esModuleInterop": true
   },
   "exclude": [
     "node_modules",
     "dist"
+  ],
+  "types": [
+    "node",
+    "crypto-browserify",
   ]
 }