Docs fix

Add support for JWT header

.github/FUNDING.yml

@@ -0,0 +1 @@
+github: tsndr

.github/workflows/publish.yml

@@ -1,4 +1,4 @@
-name: Publish NPM Package
+name: Publish
 
 on:
   release:

.gitignore

@@ -0,0 +1,144 @@
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# node.js
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*

README.md

@@ -2,80 +2,149 @@
 
 A lightweight JWT implementation with ZERO dependencies for Cloudflare Workers.
 
+
 ## Contents
 
-- [Usage](#usage)
 - [Install](#install)
-
+- [Examples](#examples)
-## Usage
+- [Usage](#usage)
-
+    - [Sign](#sign)
-### Simple Example
+    - [Verify](#verify)
-
+    - [Decode](#decode)
-```javascript
-const jwt = require('@tsndr/cloudflare-worker-jwt')
-
-// Creating a token
-const token = jwt.sign({ name: 'John Doe', email: 'john.doe@gmail.com' }, 'secret')
-
-// Verifing token
-const isValid = jwt.verify(token, 'secret')
-
-// Decoding token
-const payload = jwt.decode(token)
-
-```
-
-### `jwt.sign(payload, secret, [algorithm])`
-
-Signs a payload and returns the token.
-
-
-`payload`
-
-The payload object.
-
-
-`secret`
-
-A string which is used to sign the payload.
-
-
-`algorithm` (optional, default: `HS256`)
-
-The algorithm used to sign the payload, possible values: `HS256` or `HS512`
-
-
-### `jwt.verify(token, secret, [algorithm])`
-
-Verifies the integrity of the token and returns a boolean value.
-
-
-`token`
-
-The token string generated by `jwt.sign()`.
-
-
-`secret`
-
-A string which is used to sign the payload.
-
-
-`algorithm` (optional, default: `HS256`)
-
-The algorithm used to sign the payload, possible values: `HS256` or `HS512`
-
-### `jwt.decode(token)`
-
-Returns the payload without verifying the integrity of the token.
-
-
-`token`
-
-The token string generated by `jwt.sign()`.
 
 
 ## Install
 
 ```
-npm i @tsndr/cloudflare-worker-jwt
+npm i -D @tsndr/cloudflare-worker-jwt
 ```
+
+
+## Examples
+
+### Basic Example
+
+```javascript
+async () => {
+    const jwt = require('@tsndr/cloudflare-worker-jwt')
+
+    // Creating a token
+    const token = await jwt.sign({ name: 'John Doe', email: 'john.doe@gmail.com' }, 'secret')
+
+    // Verifing token
+    const isValid = await jwt.verify(token, 'secret')
+
+    // Check for validity
+    if (!isValid)
+        return
+
+    // Decoding token
+    const { payload } = jwt.decode(token)
+}
+```
+
+### Restrict Timeframe
+
+```javascript
+async () => {
+    const jwt = require('@tsndr/cloudflare-worker-jwt')
+
+    // Creating a token
+    const token = await jwt.sign({
+        name: 'John Doe',
+        email: 'john.doe@gmail.com',
+        nbf: Math.floor(Date.now() / 1000) + (60 * 60),      // Not before: Now + 1h
+        exp: Math.floor(Date.now() / 1000) + (2 * (60 * 60)) // Expires: Now + 2h
+    }, 'secret')
+
+    // Verifing token
+    const isValid = await jwt.verify(token, 'secret') // false
+
+    // Check for validity
+    if (!isValid)
+        return
+
+    // Decoding token
+    const { payload } = jwt.decode(token) // { name: 'John Doe', email: 'john.doe@gmail.com', ... }
+}
+```
+
+## Usage
+
+- [Sign](#sign)
+- [Verify](#verify)
+- [Decode](#decode)
+
+<hr>
+
+### Sign
+#### `jwt.sign(payload, secret, [options])`
+
+Signs a payload and returns the token.
+
+#### Arguments
+
+Argument    | Type     | Satus    | Default | Description
+----------- | -------- | -------- | ------- | -----------
+`payload`   | `object` | required | -       | The payload object. To use `nbf` (Not Before) and/or `exp` (Expiration Time) add `nbf` and/or `exp` to the payload.
+`secret`    | `string` | required | -       | A string which is used to sign the payload.
+`options`   | `object` | optional | `{ algorithm: 'HS256' }` | The options object supporting `algorithm` and `keyid`. (See [Available Algorithms](#available-algorithms))
+
+#### `return`
+Returns token as a `string`.
+
+<hr>
+
+### Verify
+#### `jwt.verify(token, secret, [options])`
+
+Verifies the integrity of the token and returns a boolean value.
+
+Argument    | Type     | Satus    | Default | Description
+----------- | -------- | -------- | ------- | -----------
+`token`     | `string` | required | -       | The token string generated by `jwt.sign()`.
+`secret`    | `string` | required | -       | The string which was used to sign the payload.
+`options`   | `object` | optional | `{ algorithm: 'HS256', throwError: false }` | The options object supporting `algorithm` and `throwError`. (See [Available Algorithms](#available-algorithms))
+
+#### `throws`
+If `options.throwError` is `true` and the token is invalid, an error will be thrown.
+
+#### `return`
+Returns `true` if signature, `nbf` (if set) and `exp` (if set) are valid, otherwise returns `false`. 
+
+<hr>
+
+### Decode
+#### `jwt.decode(token)`
+
+Returns the payload **without** verifying the integrity of the token. Please use `jwt.verify()` first to keep your application secure!
+
+Argument    | Type     | Satus    | Default | Description
+----------- | -------- | -------- | ------- | -----------
+`token`     | `string` | required | -       | The token string generated by `jwt.sign()`.
+
+#### `return`
+Returns an `object` containing `header` and `payload`:
+```javascript
+{
+    header: {
+        alg: 'HS256',
+        typ: 'JWT'
+    },
+    payload: {
+        name: 'John Doe',
+        email: 'john.doe@gmail.com'
+    }
+}
+```
+
+### Available Algorithms
+ - ES256
+ - ES384
+ - ES512
+ - HS256
+ - HS384
+ - HS512
+ - RS256
+ - RS384
+ - RS512

index.d.ts

@@ -0,0 +1,60 @@
+/**
+ * JWT
+ *
+ * @class
+ * @constructor
+ * @public
+ */
+declare class JWT {
+
+    /**
+     * Signs a payload and returns the token
+     * 
+     * @param {object} payload The payload object. To use `nbf` (Not Before) and/or `exp` (Expiration Time) add `nbf` and/or `exp` to the payload.
+     * @param {string} secret A string which is used to sign the payload.
+     * @param {JWTSignOptions | JWTAlgorithm} options The options object or the algorithm.
+     * @throws {Error} If there's a validation issue.
+     * @returns {Promise<string>} Returns token as a `string`.
+     */
+    sign(payload: object, secret: string, options?: JWTSignOptions | JWTAlgorithm): Promise<string>
+
+    /**
+     * Verifies the integrity of the token and returns a boolean value.
+     * 
+     * @param {string} token The token string generated by `jwt.sign()`.
+     * @param {string} 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`. 
+     */
+    verify(token: string, secret: string, options?: JWTVerifyOptions | JWTAlgorithm): Promise<boolean>
+
+    /**
+     * Returns the payload **without** verifying the integrity of the token. Please use `jwt.verify()` first to keep your application secure!
+     * 
+     * @param {string} token The token string generated by `jwt.sign()`.
+     * @returns {JWTDecodeReturn} Returns an `object` containing `header` and `payload`.
+     */
+    decode(token: string): JWTDecodeReturn
+}
+declare const _exports: JWT
+
+type JWTAlgorithm = 'ES256' | 'ES384' | 'ES512' | 'HS256' | 'HS384' | 'HS512' | 'RS256' | 'RS384' | 'RS512'
+
+type JWTSignOptions = {
+    algorithm?: JWTAlgorithm,
+    keyid?: string
+    header?: object
+}
+
+type JWTVerifyOptions = {
+    algorithm?: JWTAlgorithm
+    throwError?: boolean
+}
+
+type JWTDecodeReturn = {
+    header: object,
+    payload: object
+}
+
+export = _exports

index.js

@@ -9,94 +9,118 @@ class Base64URL {
 
 class JWT {
     constructor() {
-        if (!crypto || !crypto.subtle)
+        if (typeof crypto === 'undefined' || !crypto.subtle)
             throw new Error('Crypto not supported!')
         this.algorithms = {
-            HS256: {
+            ES256: { name: 'ECDSA', namedCurve: 'P-256', hash: { name: 'SHA-256' } },
-                name: 'HMAC',
+            ES384: { name: 'ECDSA', namedCurve: 'P-384', hash: { name: 'SHA-384' } },
-                hash: {
+            ES512: { name: 'ECDSA', namedCurve: 'P-521', hash: { name: 'SHA-512' } },
-                    name: 'SHA-256'
+            HS256: { name: 'HMAC', hash: { name: 'SHA-256' } },
-                }
+            HS384: { name: 'HMAC', hash: { name: 'SHA-384' } },
-            },
+            HS512: { name: 'HMAC', hash: { name: 'SHA-512' } },
-            HS512: {
+            RS256: { name: 'RSASSA-PKCS1-v1_5', hash: { name: 'SHA-256' } },
-                name: 'HMAC',
+            RS384: { name: 'RSASSA-PKCS1-v1_5', hash: { name: 'SHA-384' } },
-                hash: {
+            RS512: { name: 'RSASSA-PKCS1-v1_5', hash: { name: 'SHA-512' } },
-                    name: 'SHA-512'
         }
     }
+    _utf8ToUint8Array(str) {
+        return Base64URL.parse(btoa(unescape(encodeURIComponent(str))))
     }
+    _str2ab(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);
         }
-    utf8ToUint8Array(str) {
+        return buf;
-        const chars = []
-        str = btoa(unescape(encodeURIComponent(str)))
-        return Base64URL.parse(str)
     }
-    async sign(payload, secret, alg = 'HS256') {
+    _decodePayload(raw) {
-        if (payload === null || typeof payload !== 'object')
+        switch (raw.length % 4) {
-            throw new Error('payload must be an object')
-        if (typeof secret !== 'string')
-            throw new Error('secret must be a string')
-        if (typeof alg !== 'string')
-            throw new Error('alg must be a string')
-        const importAlgorithm = this.algorithms[alg]
-        if (!importAlgorithm)
-            throw new Error('algorithm not found')
-        const payloadAsJSON = JSON.stringify(payload)
-        const partialToken = `${Base64URL.stringify(this.utf8ToUint8Array(JSON.stringify({ alg, typ: 'JWT' })))}.${Base64URL.stringify(this.utf8ToUint8Array(payloadAsJSON))}`
-        const key = await crypto.subtle.importKey('raw', this.utf8ToUint8Array(secret), importAlgorithm, false, ['sign'])
-        const characters = payloadAsJSON.split('')
-        const it = this.utf8ToUint8Array(payloadAsJSON).entries()
-        let i = 0
-        const result = []
-        let current
-        while (!(current = it.next()).done) {
-            result.push([current.value[1], characters[i]])
-            i++
-        }
-        const signature = await crypto.subtle.sign(importAlgorithm.name, key, this.utf8ToUint8Array(partialToken))
-        return `${partialToken}.${Base64URL.stringify(new Uint8Array(signature))}`
-    }
-    async verify(token, secret, alg = 'HS256') {
-        if (typeof token !== 'string')
-            throw new Error('token must be a string')
-        if (typeof secret !== 'string')
-            throw new Error('secret must be a string')
-        if (typeof alg !== 'string')
-            throw new Error('alg must be a string')
-        const tokenParts = token.split('.')
-        if (tokenParts.length !== 3)
-            throw new Error('token must have 3 parts')
-        const importAlgorithm = this.algorithms[alg]
-        if (!importAlgorithm)
-            throw new Error('algorithm not found')
-        const keyData = this.utf8ToUint8Array(secret)
-        const key = await crypto.subtle.importKey('raw', keyData, importAlgorithm, false, ['sign'])
-        const partialToken = tokenParts.slice(0, 2).join('.')
-        const signaturePart = tokenParts[2]
-        const messageAsUint8Array = this.utf8ToUint8Array(partialToken)
-        const res = await crypto.subtle.sign(importAlgorithm.name, key, messageAsUint8Array)
-        return Base64URL.stringify(new Uint8Array(res)) === signaturePart
-    }
-    decode(token) {
-        let output = token.split('.')[1].replace(/-/g, '+').replace(/_/g, '/')
-        switch (output.length % 4) {
             case 0:
                 break
             case 2:
-                output += '=='
+                raw += '=='
                 break
             case 3:
-                output += '='
+                raw += '='
                 break
             default:
                 throw new Error('Illegal base64url string!')
         }
         try {
-            return JSON.parse(decodeURIComponent(escape(atob(output))))
+            return JSON.parse(decodeURIComponent(escape(atob(raw))))
         } catch {
             return null
         }
     }
+    async sign(payload, secret, options = { algorithm: 'HS256', header: { typ: 'JWT' } }) {
+        if (typeof options === 'string')
+            options = { algorithm: options, header: { typ: 'JWT' } }
+        if (payload === null || typeof payload !== 'object')
+            throw new Error('payload must be an object')
+        if (typeof secret !== 'string')
+            throw new Error('secret must be a string')
+        if (typeof options.algorithm !== 'string')
+            throw new Error('options.algorithm must be a string')
+        const importAlgorithm = this.algorithms[options.algorithm]
+        if (!importAlgorithm)
+            throw new Error('algorithm not found')
+        payload.iat = Math.floor(Date.now() / 1000)
+        const payloadAsJSON = JSON.stringify(payload)
+        const partialToken = `${Base64URL.stringify(this._utf8ToUint8Array(JSON.stringify({ ...options.header, alg: options.algorithm, kid: options.keyid })))}.${Base64URL.stringify(this._utf8ToUint8Array(payloadAsJSON))}`
+        let keyFormat = 'raw'
+        let keyData
+        if (secret.startsWith('-----BEGIN')) {
+            keyFormat = 'pkcs8'
+            keyData = this._str2ab(atob(secret.replace(/-----BEGIN.*?-----/g, '').replace(/-----END.*?-----/g, '').replace(/\s/g, '')))
+        } else
+            keyData = this._utf8ToUint8Array(secret)
+        const key = await crypto.subtle.importKey(keyFormat, keyData, importAlgorithm, false, ['sign'])
+        const signature = await crypto.subtle.sign(importAlgorithm, key, this._utf8ToUint8Array(partialToken))
+        return `${partialToken}.${Base64URL.stringify(new Uint8Array(signature))}`
+    }
+    async verify(token, secret, options = { algorithm: 'HS256', throwError: false }) {
+        if (typeof options === 'string')
+            options = { algorithm: options }
+        if (typeof token !== 'string')
+            throw new Error('token must be a string')
+        if (typeof secret !== 'string')
+            throw new Error('secret must be a string')
+        if (typeof options.algorithm !== 'string')
+            throw new Error('options.algorithm must be a string')
+        const tokenParts = token.split('.')
+        if (tokenParts.length !== 3)
+            throw new Error('token must consist of 3 parts')
+        const importAlgorithm = this.algorithms[options.algorithm]
+        if (!importAlgorithm)
+            throw new Error('algorithm not found')
+        const payload = this.decode(token)
+        if (payload.nbf && payload.nbf > Math.floor(Date.now() / 1000)) {
+            if (options.throwError)
+                throw 'NOT_YET_VALID'
+            return false
+        }
+        if (payload.exp && payload.exp <= Math.floor(Date.now() / 1000)) {
+            if (options.throwError)
+                throw 'EXPIRED'
+            return false
+        }
+        let keyFormat = 'raw'
+        let keyData
+        if (secret.startsWith('-----BEGIN')) {
+            keyFormat = 'spki'
+            keyData = this._str2ab(atob(secret.replace(/-----BEGIN.*?-----/g, '').replace(/-----END.*?-----/g, '').replace(/\s/g, '')))
+        } else
+            keyData = this._utf8ToUint8Array(secret)
+        const key = await crypto.subtle.importKey(keyFormat, keyData, importAlgorithm, false, ['verify'])
+        return await crypto.subtle.verify(importAlgorithm, key, Base64URL.parse(tokenParts[2]), this._utf8ToUint8Array(`${tokenParts[0]}.${tokenParts[1]}`))
+    }
+    decode(token) {
+        return {
+            header: this._decodePayload(token.split('.')[0].replace(/-/g, '+').replace(/_/g, '/')),
+            payload: this._decodePayload(token.split('.')[1].replace(/-/g, '+').replace(/_/g, '/'))
+        }
+    }
 }
 
 module.exports = new JWT

index.test.js

@@ -0,0 +1,168 @@
+const { subtle } = require('node:crypto').webcrypto
+Object.defineProperty(global, 'crypto', {
+    value: { subtle }
+})
+
+const JWT = require('./index')
+const oneDay = (60 * 60 * 24)
+const now = Date.now() / 1000
+
+const secrets = {}
+
+// Keypairs
+for (const algorithm of Object.keys(JWT.algorithms)) {
+    if (algorithm.startsWith('HS'))
+        secrets[algorithm] = 'secret'
+    else if (algorithm.startsWith('RS')) {
+        secrets[algorithm] = {
+            public: `-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu1SU1LfVLPHCozMxH2Mo
+4lgOEePzNm0tRgeLezV6ffAt0gunVTLw7onLRnrq0/IzW7yWR7QkrmBL7jTKEn5u
++qKhbwKfBstIs+bMY2Zkp18gnTxKLxoS2tFczGkPLPgizskuemMghRniWaoLcyeh
+kd3qqGElvW/VDL5AaWTg0nLVkjRo9z+40RQzuVaE8AkAFmxZzow3x+VJYKdjykkJ
+0iT9wCS0DRTXu269V264Vf/3jvredZiKRkgwlL9xNAwxXFg0x/XFw005UWVRIkdg
+cKWTjpBP2dPwVZ4WWC+9aGVd+Gyn1o0CLelf4rEjGoXbAAEgAqeGUxrcIlbjXfbc
+mwIDAQAB
+-----END PUBLIC KEY-----`,
+            private: `-----BEGIN PRIVATE KEY-----
+MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQC7VJTUt9Us8cKj
+MzEfYyjiWA4R4/M2bS1GB4t7NXp98C3SC6dVMvDuictGeurT8jNbvJZHtCSuYEvu
+NMoSfm76oqFvAp8Gy0iz5sxjZmSnXyCdPEovGhLa0VzMaQ8s+CLOyS56YyCFGeJZ
+qgtzJ6GR3eqoYSW9b9UMvkBpZODSctWSNGj3P7jRFDO5VoTwCQAWbFnOjDfH5Ulg
+p2PKSQnSJP3AJLQNFNe7br1XbrhV//eO+t51mIpGSDCUv3E0DDFcWDTH9cXDTTlR
+ZVEiR2BwpZOOkE/Z0/BVnhZYL71oZV34bKfWjQIt6V/isSMahdsAASACp4ZTGtwi
+VuNd9tybAgMBAAECggEBAKTmjaS6tkK8BlPXClTQ2vpz/N6uxDeS35mXpqasqskV
+laAidgg/sWqpjXDbXr93otIMLlWsM+X0CqMDgSXKejLS2jx4GDjI1ZTXg++0AMJ8
+sJ74pWzVDOfmCEQ/7wXs3+cbnXhKriO8Z036q92Qc1+N87SI38nkGa0ABH9CN83H
+mQqt4fB7UdHzuIRe/me2PGhIq5ZBzj6h3BpoPGzEP+x3l9YmK8t/1cN0pqI+dQwY
+dgfGjackLu/2qH80MCF7IyQaseZUOJyKrCLtSD/Iixv/hzDEUPfOCjFDgTpzf3cw
+ta8+oE4wHCo1iI1/4TlPkwmXx4qSXtmw4aQPz7IDQvECgYEA8KNThCO2gsC2I9PQ
+DM/8Cw0O983WCDY+oi+7JPiNAJwv5DYBqEZB1QYdj06YD16XlC/HAZMsMku1na2T
+N0driwenQQWzoev3g2S7gRDoS/FCJSI3jJ+kjgtaA7Qmzlgk1TxODN+G1H91HW7t
+0l7VnL27IWyYo2qRRK3jzxqUiPUCgYEAx0oQs2reBQGMVZnApD1jeq7n4MvNLcPv
+t8b/eU9iUv6Y4Mj0Suo/AU8lYZXm8ubbqAlwz2VSVunD2tOplHyMUrtCtObAfVDU
+AhCndKaA9gApgfb3xw1IKbuQ1u4IF1FJl3VtumfQn//LiH1B3rXhcdyo3/vIttEk
+48RakUKClU8CgYEAzV7W3COOlDDcQd935DdtKBFRAPRPAlspQUnzMi5eSHMD/ISL
+DY5IiQHbIH83D4bvXq0X7qQoSBSNP7Dvv3HYuqMhf0DaegrlBuJllFVVq9qPVRnK
+xt1Il2HgxOBvbhOT+9in1BzA+YJ99UzC85O0Qz06A+CmtHEy4aZ2kj5hHjECgYEA
+mNS4+A8Fkss8Js1RieK2LniBxMgmYml3pfVLKGnzmng7H2+cwPLhPIzIuwytXywh
+2bzbsYEfYx3EoEVgMEpPhoarQnYPukrJO4gwE2o5Te6T5mJSZGlQJQj9q4ZB2Dfz
+et6INsK0oG8XVGXSpQvQh3RUYekCZQkBBFcpqWpbIEsCgYAnM3DQf3FJoSnXaMhr
+VBIovic5l0xFkEHskAjFTevO86Fsz1C2aSeRKSqGFoOQ0tmJzBEs1R6KqnHInicD
+TQrKhArgLXX4v3CddjfTRJkFWDbE/CkvKZNOrcf1nhaGCPspRJj2KUkj1Fhl9Cnc
+dn/RsYEONbwQSjIfMPkvxF+8HQ==
+-----END PRIVATE KEY-----`
+        }
+    } else if (algorithm.startsWith('ES')) {
+        if (algorithm === 'ES256') {
+            secrets[algorithm] = {
+                public: `-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEEVs/o5+uQbTjL3chynL4wXgUg2R9
+q9UU8I5mEovUf86QZ7kOBIjJwqnzD1omageEHWwHdBO6B+dFabmdT9POxg==
+-----END PUBLIC KEY-----`,
+                private: `-----BEGIN PRIVATE KEY-----
+MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgevZzL1gdAFr88hb2
+OF/2NxApJCzGCEDdfSp6VQO30hyhRANCAAQRWz+jn65BtOMvdyHKcvjBeBSDZH2r
+1RTwjmYSi9R/zpBnuQ4EiMnCqfMPWiZqB4QdbAd0E7oH50VpuZ1P087G
+-----END PRIVATE KEY-----`
+            }
+        } else if (algorithm === 'ES384') {
+            secrets[algorithm] = {
+                public: `-----BEGIN PUBLIC KEY-----
+MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEC1uWSXj2czCDwMTLWV5BFmwxdM6PX9p+
+Pk9Yf9rIf374m5XP1U8q79dBhLSIuaojsvOT39UUcPJROSD1FqYLued0rXiooIii
+1D3jaW6pmGVJFhodzC31cy5sfOYotrzF
+-----END PUBLIC KEY-----`,
+                private: `-----BEGIN PRIVATE KEY-----
+MIG2AgEAMBAGByqGSM49AgEGBSuBBAAiBIGeMIGbAgEBBDCAHpFQ62QnGCEvYh/p
+E9QmR1C9aLcDItRbslbmhen/h1tt8AyMhskeenT+rAyyPhGhZANiAAQLW5ZJePZz
+MIPAxMtZXkEWbDF0zo9f2n4+T1h/2sh/fviblc/VTyrv10GEtIi5qiOy85Pf1RRw
+8lE5IPUWpgu553SteKigiKLUPeNpbqmYZUkWGh3MLfVzLmx85ii2vMU=
+-----END PRIVATE KEY-----`
+            }
+        } else if (algorithm === 'ES512') {
+            secrets[algorithm] = {
+                public: `-----BEGIN PUBLIC KEY-----
+MIGbMBAGByqGSM49AgEGBSuBBAAjA4GGAAQBgc4HZz+/fBbC7lmEww0AO3NK9wVZ
+PDZ0VEnsaUFLEYpTzb90nITtJUcPUbvOsdZIZ1Q8fnbquAYgxXL5UgHMoywAib47
+6MkyyYgPk0BXZq3mq4zImTRNuaU9slj9TVJ3ScT3L1bXwVuPJDzpr5GOFpaj+WwM
+Al8G7CqwoJOsW7Kddns=
+-----END PUBLIC KEY-----`,
+                private: `-----BEGIN PRIVATE KEY-----
+MIHuAgEAMBAGByqGSM49AgEGBSuBBAAjBIHWMIHTAgEBBEIBiyAa7aRHFDCh2qga
+9sTUGINE5jHAFnmM8xWeT/uni5I4tNqhV5Xx0pDrmCV9mbroFtfEa0XVfKuMAxxf
+Z6LM/yKhgYkDgYYABAGBzgdnP798FsLuWYTDDQA7c0r3BVk8NnRUSexpQUsRilPN
+v3SchO0lRw9Ru86x1khnVDx+duq4BiDFcvlSAcyjLACJvjvoyTLJiA+TQFdmrear
+jMiZNE25pT2yWP1NUndJxPcvVtfBW48kPOmvkY4WlqP5bAwCXwbsKrCgk6xbsp12
+ew==
+-----END PRIVATE KEY-----`
+            }
+        }
+    }
+}
+
+// Payload
+const testPayload = {
+    sub: "1234567890",
+    name: "John Doe"
+}
+
+// Self test
+test.each(Object.entries(secrets))(`Self test: %s`, async (algorithm, key) => {
+    let privateKey = key
+    let publicKey = key
+    if (typeof key === 'object') {
+        privateKey = key.private
+        publicKey = key.public
+    }
+    
+    const token = await JWT.sign(testPayload, privateKey, { algorithm })
+    expect(token).toMatch(/^[a-zA-Z0-9\-_]+\.[a-zA-Z0-9\-_]+\.[a-zA-Z0-9\-_]+$/)
+    
+    const verified = await JWT.verify(token, publicKey, { algorithm })
+    expect(verified).toBeTruthy()
+    
+    const { payload } = JWT.decode(token)
+    expect({
+        sub: payload.sub,
+        name: payload.name
+    }).toMatchObject({
+        sub: testPayload.sub,
+        name: testPayload.name
+    })
+})
+
+// External token test
+const externalTokens = {
+    ES256: 'eyJhbGciOiJFUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.Ri9u3ZJpyoHf1_i3KpVE5gMggyU3VMYPeEVktAsG1kGLOxFNJBXydQls3WFBaXXH2-sN74IMe-nDcM7NoJ6GMQ',
+    ES384: 'eyJhbGciOiJFUzM4NCIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.6nmlvcCpsfENb6ssgX3rJ2XSjpFSXD1RPS1CK0iDZFdi6I6Gnmpi456RSW6-0XSSgq2E2XBcWCSYE6TeI63jOGZJTQ6-65g4sndbzBPqYPWbLny00NQ4MQgQXVu6tRzg',
+    ES512: 'eyJhbGciOiJFUzUxMiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.AbRwaCPJM2X3XjE2kInClHVGJNIcpL5C4a1ZrgwEM05RTryyNbazWRFbXAEDtHm8crvXpqw3a8JQwYDwvMyoOr4jAJ4RbhJitLgCGEzhKjvNy4xGrg3dV8gGEShFowgDfVz0KqHOX_Bc_DbyL-gtZPdfGTwT2upLkJE-lj47RStPDh0b',
+    HS256: 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.XbPfbIHMI6arZ3Y922BhjWgQzWXcXNrz0ogtVhfEd2o',
+    HS384: 'eyJhbGciOiJIUzM4NCIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.hO2sthNQUSfvI9ylUdMKDxcrm8jB3KL6Rtkd3FOskL-jVqYh2CK1es8FKCQO8_tW',
+    HS512: 'eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.wUVS6tazE2N98_J4SH_djkEe1igXPu0qILAvVXCiO6O20gdf5vZ2sYFWX3c-Hy6L4TD47b3DSAAO9XjSqpJfag',
+    RS256: 'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.Eci61G6w4zh_u9oOCk_v1M_sKcgk0svOmW4ZsL-rt4ojGUH2QY110bQTYNwbEVlowW7phCg7vluX_MCKVwJkxJT6tMk2Ij3Plad96Jf2G2mMsKbxkC-prvjvQkBFYWrYnKWClPBRCyIcG0dVfBvqZ8Mro3t5bX59IKwQ3WZ7AtGBYz5BSiBlrKkp6J1UmP_bFV3eEzIHEFgzRa3pbr4ol4TK6SnAoF88rLr2NhEz9vpdHglUMlOBQiqcZwqrI-Z4XDyDzvnrpujIToiepq9bCimPgVkP54VoZzy-mMSGbthYpLqsL_4MQXaI1Uf_wKFAUuAtzVn4-ebgsKOpvKNzVA',
+    RS384: 'eyJhbGciOiJSUzM4NCIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.oPvWzaCp8xUpt5mHhPSn0qLsZfCFj0NVmb4mz4dFQPCCMj-F5zVn9e3zZoj0lIXWM8rxB69QHC3Er47mtDt3BKgysTL3BvvV89kD6UjLoUcAI3lwj0mi7acLoE27i1_TnIBqWNRPAsdvTDawNE0_4lvI5bxEWQCqisJwxCoMDIeJsmDzfyApgU_SAFSVULxXwU2VewaxdQB-41OZdWwUEAxh81iB6DFWrqd2CaJkUYoWjgYpeWsyeC2m_-ECGrHGEz1nKTm9c7BaPxurz7fHD7RJd9Wpx-mKDVsfspO9quWb_OLeGGbxTtAomMvjQjut56kx2fqTleDnNDh_0GE88w',
+    RS512: 'eyJhbGciOiJSUzUxMiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.kEZmDAnHHU_0bcGXMd5LA7vF87yQgXNaioPHP4lU4O3JJYuZ54fJdv3HT58xk-MFEDuWro_5fvNIp2VM-PlkZvYWrhQkJ-c-seoSa3ANq_PciC3bGfzYHEdjAE71GrAMI4FlcAGsq3ChkOnCTFqjWDmVwaRYCgMsFQ-U5cjvFhndFMizrkRljTF4v5oFdWytV_J-UafPtNdQXcGND1M74DqObnTHhZHg8aDfNzZcvnIeKcDVGUlUEL5ia1kPMrVhCtOAOJmEU8ivCdWWzt-jMQBf7cZeoCzDKHG72ysTTCfRoBVc1_SrQTHcHDiiBeW9nCazMLkltyP5NeawR_RNlg'
+}
+
+test.each(Object.entries(externalTokens))('Verify external tokens: %s', async (algorithm, token) => {
+    const key = secrets[algorithm]
+    let privateKey = key
+    let publicKey = key
+    if (typeof key === 'object') {
+        privateKey = key.private
+        publicKey = key.public
+    }
+    
+    const verified = await JWT.verify(token, publicKey, { algorithm })
+    expect(verified).toBeTruthy()
+
+    const { payload } = JWT.decode(token)
+    expect({
+        sub: payload.sub,
+        name: payload.name
+    }).toMatchObject({
+        sub: testPayload.sub,
+        name: testPayload.name
+    })
+})

package.json

@@ -1,10 +1,10 @@
 {
   "name": "@tsndr/cloudflare-worker-jwt",
-  "version": "1.0.6",
+  "version": "1.4.2",
   "description": "A lightweight JWT implementation with ZERO dependencies for Cloudflare Worker",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+      "test": "jest"
   },
   "repository": {
     "type": "git",
@@ -22,5 +22,8 @@
   "bugs": {
     "url": "https://github.com/tsndr/cloudflare-worker-jwt/issues"
   },
-  "homepage": "https://github.com/tsndr/cloudflare-worker-jwt#readme"
+  "homepage": "https://github.com/tsndr/cloudflare-worker-jwt#readme",
+  "devDependencies": {
+    "jest": "^28.1.0"
+  }
 }