add algorithm to header and check during verification

This reverts commit 4ceac0270f.

.github/workflows/test.yml

@@ -0,0 +1,21 @@
+name: Test
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: latest
+          registry-url: https://registry.npmjs.org/
+      - name: Install dependencies
+        run: npm ci
+      - name: Run tests
+        run: npm test

.gitignore

@@ -146,3 +146,5 @@ dist
 # Custom
 /index.js
 /index.d.ts
+/utils.js
+/utils.d.ts

.npmignore

@@ -1,9 +1,11 @@
 .editorconfig
 .github/
+.gitignore
 .nvmrc
-index.spec.js
-index.test.js
-jest.config.ts
+coverage/
+vite.config.ts
 src/
-test/
+tests/
 tsconfig.json
+utils.*
+*.tgz

jest.config.ts

@@ -1,9 +0,0 @@
-import type { Config } from 'jest'
-
-const config: Config = {
-	preset: 'ts-jest',
-	testEnvironment: 'node',
-	verbose: true
-}
-
-export default config

package.json

@@ -1,12 +1,16 @@
 {
   "name": "@tsndr/cloudflare-worker-jwt",
-  "version": "2.2.7",
+  "version": "2.4.6",
   "description": "A lightweight JWT implementation with ZERO dependencies for Cloudflare Worker",
-  "main": "index.js",
+  "type": "module",
+  "exports": "./index.js",
   "types": "index.d.ts",
+  "engine": {
+    "node": ">=18"
+  },
   "scripts": {
-    "build": "tsc",
-    "test": "jest"
+    "build": "tsc & esbuild --bundle --target=esnext --platform=neutral --outfile=index.js src/index.ts & wait",
+    "test": "vitest"
   },
   "repository": {
     "type": "git",
@@ -26,13 +30,11 @@
   },
   "homepage": "https://github.com/tsndr/cloudflare-worker-jwt#readme",
   "devDependencies": {
-    "@cloudflare/workers-types": "^4.20231025.0",
-    "@jest/globals": "^29.7.0",
-    "@types/jest": "^29.5.8",
-    "@types/node": "^20.9.0",
-    "jest": "^29.7.0",
-    "ts-jest": "^29.1.1",
-    "ts-node": "^10.9.1",
-    "typescript": "^5.2.2"
+    "@cloudflare/workers-types": "^4.20240208.0",
+    "@edge-runtime/vm": "^3.2.0",
+    "@types/node": "^20.11.19",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.3.3",
+    "vitest": "^1.3.1"
   }
 }

src/index.ts

@@ -1,3 +1,12 @@
+import {
+    textToArrayBuffer,
+    arrayBufferToBase64Url,
+    base64UrlToArrayBuffer,
+    textToBase64Url,
+    importKey,
+    decodePayload
+} from "./utils"
+
 if (typeof crypto === 'undefined' || !crypto.subtle)
     throw new Error('SubtleCrypto not supported!')
 
@@ -10,7 +19,7 @@ export type JwtAlgorithm = 'ES256'|'ES384'|'ES512'|'HS256'|'HS384'|'HS512'|'RS25
 /**
  * @typedef JwtAlgorithms
  */
-export interface JwtAlgorithms {
+export type JwtAlgorithms = {
     [key: string]: SubtleCryptoImportKeyAlgorithm
 }
 
@@ -18,7 +27,7 @@ export interface JwtAlgorithms {
  * @typedef JwtHeader
  * @prop {string} [typ] Type
  */
-export interface JwtHeader {
+export type JwtHeader<T = {}> = {
     /**
      * Type (default: `"JWT"`)
      *
@@ -26,8 +35,13 @@ export interface JwtHeader {
      */
     typ?: string
 
-    [key: string]: any
-}
+    /**
+     * Algorithm (default: `"HS256"`)
+     *
+     * @default "HS256"
+     */
+    alg?: JwtAlgorithm
+} & T
 
 /**
  * @typedef JwtPayload
@@ -39,7 +53,7 @@ export interface JwtHeader {
  * @prop {string} [iat] Issued At
  * @prop {string} [jti] JWT ID
  */
-export interface JwtPayload {
+export type JwtPayload<T = { [key: string]: any }> = {
     /** Issuer */
     iss?: string
 
@@ -60,15 +74,13 @@ export interface JwtPayload {
 
     /** JWT ID */
     jti?: string
-
-    [key: string]: any
-}
+} & T
 
 /**
  * @typedef JwtOptions
  * @prop {JwtAlgorithm | string} algorithm
  */
-export interface JwtOptions {
+export type JwtOptions = {
     algorithm?: JwtAlgorithm | string
 }
 
@@ -77,49 +89,32 @@ export interface JwtOptions {
  * @extends JwtOptions
  * @prop {JwtHeader} [header]
  */
-export interface JwtSignOptions extends JwtOptions {
-    header?: JwtHeader
-}
+export type JwtSignOptions<T> = {
+    header?: JwtHeader<T>
+} & JwtOptions
 
 /**
  * @typedef JwtVerifyOptions
  * @extends JwtOptions
  * @prop {boolean} [throwError=false] If `true` throw error if checks fail. (default: `false`)
  */
-export interface JwtVerifyOptions extends JwtOptions {
-    /**
-     * If `true` all expiry checks will be skipped
-    */
-    skipValidation?: boolean
-
+export type JwtVerifyOptions = {
     /**
      * If `true` throw error if checks fail. (default: `false`)
      *
      * @default false
     */
     throwError?: boolean
-}
+} & JwtOptions
 
 /**
  * @typedef JwtData
  * @prop {JwtHeader} header
  * @prop {JwtPayload} payload
  */
-export interface JwtData {
-    header: JwtHeader
-    payload: JwtPayload
-}
-
-function base64UrlParse(s: string): Uint8Array {
-    // @ts-ignore
-    return new Uint8Array(Array.prototype.map.call(atob(s.replace(/-/g, '+').replace(/_/g, '/').replace(/\s/g, '')), c => c.charCodeAt(0)))
-    // return new Uint8Array(Array.from(atob(s.replace(/-/g, '+').replace(/_/g, '/').replace(/\s/g, ''))).map(c => c.charCodeAt(0)))
-}
-
-function base64UrlStringify(a: Uint8Array): string {
-    // @ts-ignore
-    return btoa(String.fromCharCode.apply(0, a)).replace(/=/g, '').replace(/\+/g, '-').replace(/\//g, '_')
-    // return btoa(String.fromCharCode.apply(0, Array.from(a))).replace(/=/g, '').replace(/\+/g, '-').replace(/\//g, '_')
+export type JwtData<Payload = {}, Header = {}> = {
+    header?: JwtHeader<Header>
+    payload?: JwtPayload<Payload>
 }
 
 const algorithms: JwtAlgorithms = {
@@ -134,64 +129,26 @@ const algorithms: JwtAlgorithms = {
     RS512: { name: 'RSASSA-PKCS1-v1_5', hash: { name: 'SHA-512' } }
 }
 
-function _utf8ToUint8Array(str: string): Uint8Array {
-    return base64UrlParse(btoa(unescape(encodeURIComponent(str))))
-}
-
-function _str2ab(str: string): ArrayBuffer {
-    str = atob(str)
-
-    const buf = new ArrayBuffer(str.length);
-    const bufView = new Uint8Array(buf);
-
-    for (let i = 0, strLen = str.length; i < strLen; i++) {
-        bufView[i] = str.charCodeAt(i);
-    }
-
-    return buf;
-}
-
-function _decodePayload(raw: string): JwtHeader | JwtPayload | null {
-    switch (raw.length % 4) {
-        case 0:
-            break
-        case 2:
-            raw += '=='
-            break
-        case 3:
-            raw += '='
-            break
-        default:
-            throw new Error('Illegal base64url string!')
-    }
-
-    try {
-        return JSON.parse(decodeURIComponent(escape(atob(raw))))
-    } catch {
-        return null
-    }
-}
-
 /**
  * Signs a payload and returns the token
  *
  * @param {JwtPayload} payload The payload object. To use `nbf` (Not Before) and/or `exp` (Expiration Time) add `nbf` and/or `exp` to the payload.
- * @param {string | JsonWebKey} secret A string which is used to sign the payload.
+ * @param {string | JsonWebKey | CryptoKey} secret A string which is used to sign the payload.
  * @param {JwtSignOptions | JwtAlgorithm | string} [options={ algorithm: 'HS256', header: { typ: 'JWT' } }] The options object or the algorithm.
  * @throws {Error} If there's a validation issue.
  * @returns {Promise<string>} Returns token as a `string`.
  */
-export async function sign(payload: JwtPayload, secret: string | JsonWebKey, options: JwtSignOptions | JwtAlgorithm = { algorithm: 'HS256', header: { typ: 'JWT' } }): Promise<string> {
+export async function sign<Payload = {}, Header = {}>(payload: JwtPayload<Payload>, secret: string | JsonWebKey, options: JwtSignOptions<Header> | JwtAlgorithm = 'HS256'): Promise<string> {
     if (typeof options === 'string')
-        options = { algorithm: options, header: { typ: 'JWT' } }
+        options = { algorithm: options }
 
-    options = { algorithm: 'HS256', header: { typ: 'JWT' }, ...options }
+    options = { algorithm: 'HS256', header: { typ: 'JWT' } as JwtHeader<Header>, ...options }
 
-    if (payload === null || typeof payload !== 'object')
+    if (!payload || typeof payload !== 'object')
         throw new Error('payload must be an object')
 
-    if (typeof secret !== 'string' && typeof secret !== 'object')
-        throw new Error('secret must be a string or a JWK object')
+    if (!secret || (typeof secret !== 'string' && typeof secret !== 'object'))
+        throw new Error('secret must be a string, a JWK object or a CryptoKey object')
 
     if (typeof options.algorithm !== 'string')
         throw new Error('options.algorithm must be a string')
@@ -204,47 +161,34 @@ export async function sign(payload: JwtPayload, secret: string | JsonWebKey, opt
     if (!payload.iat)
         payload.iat = Math.floor(Date.now() / 1000)
 
-    const payloadAsJSON = JSON.stringify(payload)
-    const partialToken = `${base64UrlStringify(_utf8ToUint8Array(JSON.stringify({ ...options.header, alg: options.algorithm })))}.${base64UrlStringify(_utf8ToUint8Array(payloadAsJSON))}`
+    const partialToken = `${textToBase64Url(JSON.stringify({ ...options.header, alg: options.algorithm }))}.${textToBase64Url(JSON.stringify(payload))}`
 
-    let keyFormat = 'raw'
-    let keyData
+    const key = secret instanceof CryptoKey ? secret : await importKey(secret, algorithm, ['sign'])
+    const signature = await crypto.subtle.sign(algorithm, key, textToArrayBuffer(partialToken))
 
-    if (typeof secret === 'object') {
-        keyFormat = 'jwk'
-        keyData = secret
-    } else if (typeof secret === 'string' && secret.startsWith('-----BEGIN')) {
-        keyFormat = 'pkcs8'
-        keyData = _str2ab(secret.replace(/-----BEGIN.*?-----/g, '').replace(/-----END.*?-----/g, '').replace(/\s/g, ''))
-    } else
-        keyData = _utf8ToUint8Array(secret)
-
-    const key = await crypto.subtle.importKey(keyFormat, keyData, algorithm, false, ['sign'])
-    const signature = await crypto.subtle.sign(algorithm, key, _utf8ToUint8Array(partialToken))
-
-    return `${partialToken}.${base64UrlStringify(new Uint8Array(signature))}`
+    return `${partialToken}.${arrayBufferToBase64Url(signature)}`
 }
 
 /**
  * Verifies the integrity of the token and returns a boolean value.
  *
  * @param {string} token The token string generated by `jwt.sign()`.
- * @param {string | JsonWebKey} secret The string which was used to sign the payload.
+ * @param {string | JsonWebKey | CryptoKey} secret The string which was used to sign the payload.
  * @param {JWTVerifyOptions | JWTAlgorithm} options The options object or the algorithm.
  * @throws {Error | string} Throws an error `string` if the token is invalid or an `Error-Object` if there's a validation issue.
  * @returns {Promise<boolean>} Returns `true` if signature, `nbf` (if set) and `exp` (if set) are valid, otherwise returns `false`.
  */
-export async function verify(token: string, secret: string | JsonWebKey, options: JwtVerifyOptions | JwtAlgorithm = { algorithm: 'HS256', skipValidation: false, throwError: false }): Promise<boolean> {
+export async function verify(token: string, secret: string | JsonWebKey | CryptoKey, options: JwtVerifyOptions | JwtAlgorithm = { algorithm: 'HS256', throwError: false }): Promise<boolean> {
     if (typeof options === 'string')
         options = { algorithm: options, throwError: false }
 
-    options = { algorithm: 'HS256', skipValidation: false, throwError: false, ...options }
+    options = { algorithm: 'HS256', throwError: false, ...options }
 
     if (typeof token !== 'string')
         throw new Error('token must be a string')
 
     if (typeof secret !== 'string' && typeof secret !== 'object')
-        throw new Error('secret must be a string or a JWK object')
+        throw new Error('secret must be a string, a JWK object or a CryptoKey object')
 
     if (typeof options.algorithm !== 'string')
         throw new Error('options.algorithm must be a string')
@@ -259,43 +203,32 @@ export async function verify(token: string, secret: string | JsonWebKey, options
     if (!algorithm)
         throw new Error('algorithm not found')
 
-    const { payload } = decode(token)
+    const { header, payload } = decode(token)
 
-    if (!options.skipValidation && !payload) {
+    if (header?.alg !== options.algorithm) {
         if (options.throwError)
-            throw 'PARSE_ERROR'
-
+            throw new Error('ALG_MISMATCH')
         return false
     }
 
-    if (!options.skipValidation && payload.nbf && payload.nbf > Math.floor(Date.now() / 1000)) {
-        if (options.throwError)
-            throw 'NOT_YET_VALID'
+    try {
+        if (!payload)
+            throw new Error('PARSE_ERROR')
 
+        if (payload.nbf && payload.nbf > Math.floor(Date.now() / 1000))
+            throw new Error('NOT_YET_VALID')
+
+        if (payload.exp && payload.exp <= Math.floor(Date.now() / 1000))
+            throw new Error('EXPIRED')
+
+        const key = secret instanceof CryptoKey ? secret : await importKey(secret, algorithm, ['verify'])
+
+        return await crypto.subtle.verify(algorithm, key, base64UrlToArrayBuffer(tokenParts[2]), textToArrayBuffer(`${tokenParts[0]}.${tokenParts[1]}`))
+    } catch(err) {
+        if (options.throwError)
+            throw err
         return false
     }
-
-    if (!options.skipValidation && payload.exp && payload.exp <= Math.floor(Date.now() / 1000)) {
-        if (options.throwError)
-            throw 'EXPIRED'
-
-        return false
-    }
-    let keyFormat = 'raw'
-    let keyData
-
-    if (typeof secret === 'object') {
-        keyFormat = 'jwk';
-        keyData = secret;
-    } else if (typeof secret === 'string' && secret.startsWith('-----BEGIN')) {
-        keyFormat = 'spki'
-        keyData = _str2ab(secret.replace(/-----BEGIN.*?-----/g, '').replace(/-----END.*?-----/g, '').replace(/\s/g, ''))
-    } else
-        keyData = _utf8ToUint8Array(secret)
-
-    const key = await crypto.subtle.importKey(keyFormat, keyData, algorithm, false, ['verify'])
-
-    return await crypto.subtle.verify(algorithm, key, base64UrlParse(tokenParts[2]), _utf8ToUint8Array(`${tokenParts[0]}.${tokenParts[1]}`))
 }
 
 /**
@@ -304,10 +237,10 @@ export async function verify(token: string, secret: string | JsonWebKey, options
  * @param {string} token The token string generated by `jwt.sign()`.
  * @returns {JwtData} Returns an `object` containing `header` and `payload`.
  */
-export function decode(token: string): JwtData {
+export function decode<Payload = {}, Header = {}>(token: string): JwtData<Payload, Header> {
     return {
-        header: _decodePayload(token.split('.')[0].replace(/-/g, '+').replace(/_/g, '/')) as JwtHeader,
-        payload: _decodePayload(token.split('.')[1].replace(/-/g, '+').replace(/_/g, '/')) as JwtPayload
+        header: decodePayload<JwtHeader<Header>>(token.split('.')[0].replace(/-/g, '+').replace(/_/g, '/')),
+        payload: decodePayload<JwtPayload<Payload>>(token.split('.')[1].replace(/-/g, '+').replace(/_/g, '/'))
     }
 }
 

src/test.ts

@@ -0,0 +1,3 @@
+import { sign } from './index'
+
+console.log(await sign())

src/utils.ts

@@ -0,0 +1,94 @@
+export function bytesToByteString(bytes: Uint8Array): string {
+    let byteStr = ''
+    for (let i = 0; i < bytes.byteLength; i++) {
+        byteStr += String.fromCharCode(bytes[i])
+    }
+    return byteStr
+}
+
+export function byteStringToBytes(byteStr: string): Uint8Array {
+    let bytes = new Uint8Array(byteStr.length)
+    for (let i = 0; i < byteStr.length; i++) {
+        bytes[i] = byteStr.charCodeAt(i)
+    }
+    return bytes
+}
+
+export function arrayBufferToBase64String(arrayBuffer: ArrayBuffer): string {
+    return btoa(bytesToByteString(new Uint8Array(arrayBuffer)))
+}
+
+export function base64StringToArrayBuffer(b64str: string): ArrayBuffer {
+    return byteStringToBytes(atob(b64str)).buffer
+}
+
+export function textToArrayBuffer(str: string): ArrayBuffer {
+    return byteStringToBytes(decodeURI(encodeURIComponent(str)))
+}
+
+export function arrayBufferToText(arrayBuffer: ArrayBuffer): string {
+    return bytesToByteString(new Uint8Array(arrayBuffer))
+}
+
+export function arrayBufferToBase64Url(arrayBuffer: ArrayBuffer): string {
+    return arrayBufferToBase64String(arrayBuffer).replace(/=/g, '').replace(/\+/g, '-').replace(/\//g, '_')
+}
+
+export function base64UrlToArrayBuffer(b64url: string): ArrayBuffer {
+    return base64StringToArrayBuffer(b64url.replace(/-/g, '+').replace(/_/g, '/').replace(/\s/g, ''))
+}
+
+export function textToBase64Url(str: string): string {
+    const encoder = new TextEncoder();
+    const charCodes = encoder.encode(str);
+    const binaryStr = String.fromCharCode(...charCodes);
+    return btoa(binaryStr).replace(/=/g, '').replace(/\+/g, '-').replace(/\//g, '_')
+}
+
+export function pemToBinary(pem: string): ArrayBuffer {
+    return base64StringToArrayBuffer(pem.replace(/-+(BEGIN|END).*/g, '').replace(/\s/g, ''))
+}
+
+type KeyUsages = 'sign' | 'verify';
+export async function importTextSecret(key: string, algorithm: SubtleCryptoImportKeyAlgorithm, keyUsages: KeyUsages[]): Promise<CryptoKey> {
+    return await crypto.subtle.importKey("raw", textToArrayBuffer(key), algorithm, true, keyUsages)
+}
+
+export async function importJwk(key: JsonWebKey, algorithm: SubtleCryptoImportKeyAlgorithm, keyUsages: KeyUsages[]): Promise<CryptoKey> {
+    return await crypto.subtle.importKey("jwk", key, algorithm, true, keyUsages)
+}
+
+export async function importPublicKey(key: string, algorithm: SubtleCryptoImportKeyAlgorithm, keyUsages: KeyUsages[]): Promise<CryptoKey> {
+    return await crypto.subtle.importKey("spki", pemToBinary(key), algorithm, true, keyUsages)
+}
+
+export async function importPrivateKey(key: string, algorithm: SubtleCryptoImportKeyAlgorithm, keyUsages: KeyUsages[]): Promise<CryptoKey> {
+    return await crypto.subtle.importKey("pkcs8", pemToBinary(key), algorithm, true, keyUsages)
+}
+
+export async function importKey(key: string | JsonWebKey, algorithm: SubtleCryptoImportKeyAlgorithm, keyUsages: KeyUsages[]): Promise<CryptoKey> {
+    if (typeof key === 'object')
+        return importJwk(key, algorithm, keyUsages)
+
+    if (typeof key !== 'string')
+        throw new Error('Unsupported key type!')
+
+    if (key.includes('PUBLIC'))
+        return importPublicKey(key, algorithm, keyUsages)
+
+    if (key.includes('PRIVATE'))
+        return importPrivateKey(key, algorithm, keyUsages)
+
+    return importTextSecret(key, algorithm, keyUsages)
+}
+
+export function decodePayload<T = any>(raw: string): T | undefined {
+    try {
+        const bytes = Array.from(atob(raw), char => char.charCodeAt(0));
+        const decodedString = new TextDecoder('utf-8').decode(new Uint8Array(bytes));
+
+        return JSON.parse(decodedString);
+    } catch {
+        return
+    }
+}

tests/index.spec.ts

@@ -1,9 +1,5 @@
-
-import crypto from 'node:crypto'
-Object.defineProperty(global, 'crypto', { value: { subtle: crypto.webcrypto.subtle }})
-
-import { describe, expect, test } from '@jest/globals'
-import jwt, { JwtAlgorithm } from '.'
+import { describe, expect, test } from 'vitest'
+import jwt, { JwtAlgorithm } from '../src/index'
 
 type Dataset = {
     public: string
@@ -15,6 +11,11 @@ type Data = {
     [key in JwtAlgorithm]: Dataset
 }
 
+type Payload = {
+    sub: string
+    name: string
+}
+
 const data: Data = {
     'ES256': {
         public: '-----BEGIN PUBLIC KEY-----\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEEVs/o5+uQbTjL3chynL4wXgUg2R9\nq9UU8I5mEovUf86QZ7kOBIjJwqnzD1omageEHWwHdBO6B+dFabmdT9POxg==\n-----END PUBLIC KEY-----',
@@ -64,11 +65,16 @@ const data: Data = {
 
 }
 
-const payload = {
+const payload: Payload = {
     sub: "1234567890",
     name: "John Doe",
 }
 
+const unicodePayload: Payload = {
+    sub: "1234567890",
+    name: "John Doe 😎",
+}
+
 describe.each(Object.entries(data) as [JwtAlgorithm, Dataset][])('%s', (algorithm, data) => {
     let token = ''
 
@@ -78,18 +84,23 @@ describe.each(Object.entries(data) as [JwtAlgorithm, Dataset][])('%s', (algorith
     })
 
     test('decode external', async () => {
-        const decoded = jwt.decode(data.token)
+        const decoded = jwt.decode<Payload>(data.token)
         expect({
             sub: payload.sub,
             name: payload.name
         }).toMatchObject({
-            sub: decoded.payload.sub,
+            sub: decoded.payload?.sub,
             name: payload.name
         })
     })
 
     test('sign internal', async () => {
-        token = await jwt.sign(payload, data.private, algorithm)
+        token = await jwt.sign<Payload>(payload, data.private, algorithm)
+        expect(token).toMatch(/^[a-zA-Z0-9\-_]+\.[a-zA-Z0-9\-_]+\.[a-zA-Z0-9\-_]+$/)
+    })
+
+    test('sign unciode', async () => {
+        token = await jwt.sign<Payload>(unicodePayload, data.private, algorithm)
         expect(token).toMatch(/^[a-zA-Z0-9\-_]+\.[a-zA-Z0-9\-_]+\.[a-zA-Z0-9\-_]+$/)
     })
 
@@ -99,7 +110,7 @@ describe.each(Object.entries(data) as [JwtAlgorithm, Dataset][])('%s', (algorith
             sub: payload.sub,
             name: payload.name
         }).toMatchObject({
-            sub: decoded.payload.sub,
+            sub: decoded.payload?.sub,
             name: payload.name
         })
     })

tests/utils.spec.ts

@@ -0,0 +1,81 @@
+import { describe, expect, test } from 'vitest'
+import {
+	bytesToByteString,
+	byteStringToBytes,
+	arrayBufferToBase64String,
+	base64StringToArrayBuffer,
+	textToArrayBuffer,
+	arrayBufferToText,
+	arrayBufferToBase64Url,
+	base64UrlToArrayBuffer,
+	textToBase64Url,
+	pemToBinary,
+	importTextSecret
+} from '../src/utils'
+
+describe('Converters', () => {
+	const testString = 'cloudflare-worker-jwt'
+	const testByteArray = [ 99, 108, 111, 117, 100, 102, 108, 97, 114, 101, 45, 119, 111, 114, 107, 101, 114, 45, 106, 119, 116 ]
+	const testUint8Array = new Uint8Array(testByteArray)
+	const testBase64String = 'Y2xvdWRmbGFyZS13b3JrZXItand0'
+	const testArrayBuffer = testUint8Array.buffer
+
+	test('bytesToByteString', () => {
+		expect(bytesToByteString(testUint8Array)).toStrictEqual(testString)
+	})
+
+	test('byteStringToBytes', () => {
+		expect(byteStringToBytes(testString)).toStrictEqual(testUint8Array)
+	})
+
+	test('arrayBufferToBase64String', () => {
+		expect(arrayBufferToBase64String(testArrayBuffer)).toStrictEqual(testBase64String)
+	})
+
+	test('base64StringToArrayBuffer', () => {
+		expect(base64StringToArrayBuffer(testBase64String)).toStrictEqual(testArrayBuffer)
+	})
+
+	test('textToArrayBuffer', () => {
+		expect(textToArrayBuffer(testString)).toStrictEqual(testUint8Array)
+	})
+
+	test('arrayBufferToText', () => {
+		expect(arrayBufferToText(testArrayBuffer)).toStrictEqual(testString)
+	})
+
+	test('arrayBufferToBase64Url', () => {
+		expect(arrayBufferToBase64Url(testArrayBuffer)).toStrictEqual(testBase64String)
+	})
+
+	test('base64UrlToArrayBuffer', () => {
+		expect(base64UrlToArrayBuffer(testBase64String)).toStrictEqual(testArrayBuffer)
+	})
+
+	test('textToBase64Url', () => {
+		expect(textToBase64Url(testString)).toStrictEqual(testBase64String)
+	})
+
+	test('pemToBinary', () => {
+		expect(pemToBinary(`-----BEGIN PUBLIC KEY-----\n${testBase64String}\n-----END PUBLIC KEY-----`)).toStrictEqual(testArrayBuffer)
+	})
+})
+
+describe('Imports', () => {
+	test('importTextSecret', async () => {
+		const testKey = 'cloudflare-worker-jwt'
+		const testAlgorithm = { name: 'HMAC', hash: { name: 'SHA-256' } }
+		const testCryptoKey = { type: 'secret', extractable: true, algorithm: { ...testAlgorithm, length: 168 }, usages: ['verify', 'sign'] }
+
+		expect(await importTextSecret(testKey, testAlgorithm, ['verify', 'sign'])).toMatchObject(testCryptoKey)
+	})
+
+	//test('importJwk', async () => {})
+	//test('importPublicKey', async () => {})
+	//test('importPrivateKey', async () => {})
+	//test('importKey', async () => {})
+})
+
+//describe('Payload', () => {
+//	test('decodePayload', () => {})
+//})

tsconfig.json

@@ -5,6 +5,7 @@
         "target": "esnext",
         "lib": ["esnext"],
         "declaration": true,
+        "emitDeclarationOnly": true,
         "strict": true,
         "noImplicitAny": true,
         "strictNullChecks": true,

vite.config.ts

@@ -0,0 +1,9 @@
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+	test: {
+		environment: 'edge-runtime',
+		watch: false,
+		reporters: ['verbose']
+	}
+})