Docs fix

Add support for JWT header

README.md

@@ -8,6 +8,9 @@ A lightweight JWT implementation with ZERO dependencies for Cloudflare Workers.
 - [Install](#install)
 - [Examples](#examples)
 - [Usage](#usage)
+    - [Sign](#sign)
+    - [Verify](#verify)
+    - [Decode](#decode)
 
 
 ## Install
@@ -36,7 +39,7 @@ async () => {
         return
 
     // Decoding token
-    const payload = jwt.decode(token)
+    const { payload } = jwt.decode(token)
 }
 ```
 
@@ -62,15 +65,20 @@ async () => {
         return
 
     // Decoding token
-    const payload = jwt.decode(token) // { name: 'John Doe', email: 'john.doe@gmail.com', ... }
+    const { payload } = jwt.decode(token) // { name: 'John Doe', email: 'john.doe@gmail.com', ... }
 }
 ```
 
 ## Usage
 
+- [Sign](#sign)
+- [Verify](#verify)
+- [Decode](#decode)
+
 <hr>
 
-### `jwt.sign(payload, secret, [options])`
+### Sign
+#### `jwt.sign(payload, secret, [options])`
 
 Signs a payload and returns the token.
 
@@ -87,7 +95,8 @@ Returns token as a `string`.
 
 <hr>
 
-### `jwt.verify(token, secret, [options])`
+### Verify
+#### `jwt.verify(token, secret, [options])`
 
 Verifies the integrity of the token and returns a boolean value.
 
@@ -95,14 +104,18 @@ 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.
-`algorithm` | `object`, `string` | optional | `{ algorithm: 'HS256' }` | The options object supporting `algorithm` or just the algorithm string. (See [Available Algorithms](#available-algorithms))
+`options`   | `object`, `string` | 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>
 
-### `jwt.decode(token)`
+### Decode
+#### `jwt.decode(token)`
 
 Returns the payload **without** verifying the integrity of the token. Please use `jwt.verify()` first to keep your application secure!
 
@@ -111,7 +124,19 @@ Argument    | Type     | Satus    | Default | Description
 `token`     | `string` | required | -       | The token string generated by `jwt.sign()`.
 
 #### `return`
-Returns payload `object`.
+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

index.d.ts

@@ -13,6 +13,7 @@ declare class JWT {
      * @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>
@@ -23,6 +24,7 @@ declare class JWT {
      * @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>
@@ -31,9 +33,9 @@ declare class JWT {
      * 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 {object | null} Returns payload `object`.
+     * @returns {JWTDecodeReturn} Returns an `object` containing `header` and `payload`.
      */
-    decode(token: string): object | null
+    decode(token: string): JWTDecodeReturn
 }
 declare const _exports: JWT
 
@@ -42,10 +44,17 @@ type JWTAlgorithm = 'ES256' | 'ES384' | 'ES512' | 'HS256' | 'HS384' | 'HS512' |
 type JWTSignOptions = {
     algorithm?: JWTAlgorithm,
     keyid?: string
+    header?: object
 }
 
 type JWTVerifyOptions = {
     algorithm?: JWTAlgorithm
+    throwError?: boolean
+}
+
+type JWTDecodeReturn = {
+    header: object,
+    payload: object
 }
 
 export = _exports

index.js

@@ -14,7 +14,7 @@ class JWT {
         this.algorithms = {
             ES256: { name: 'ECDSA', namedCurve: 'P-256', hash: { name: 'SHA-256' } },
             ES384: { name: 'ECDSA', namedCurve: 'P-384', hash: { name: 'SHA-384' } },
-            ES512: { name: 'ECDSA', namedCurve: 'P-512', hash: { name: 'SHA-512' } },
+            ES512: { name: 'ECDSA', namedCurve: 'P-521', hash: { name: 'SHA-512' } },
             HS256: { name: 'HMAC', hash: { name: 'SHA-256' } },
             HS384: { name: 'HMAC', hash: { name: 'SHA-384' } },
             HS512: { name: 'HMAC', hash: { name: 'SHA-512' } },
@@ -53,9 +53,9 @@ class JWT {
             return null
         }
     }
-    async sign(payload, secret, options = { algorithm: 'HS256' }) {
+    async sign(payload, secret, options = { algorithm: 'HS256', header: { typ: 'JWT' } }) {
         if (typeof options === 'string')
-            options = { algorithm: options }
+            options = { algorithm: options, header: { typ: 'JWT' } }
         if (payload === null || typeof payload !== 'object')
             throw new Error('payload must be an object')
         if (typeof secret !== 'string')
@@ -67,7 +67,7 @@ class JWT {
             throw new Error('algorithm not found')
         payload.iat = Math.floor(Date.now() / 1000)
         const payloadAsJSON = JSON.stringify(payload)
-        const partialToken = `${Base64URL.stringify(this._utf8ToUint8Array(JSON.stringify({ alg: options.algorithm, kid: options.keyid })))}.${Base64URL.stringify(this._utf8ToUint8Array(payloadAsJSON))}`
+        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')) {
@@ -79,7 +79,7 @@ class JWT {
         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' }) {
+    async verify(token, secret, options = { algorithm: 'HS256', throwError: false }) {
         if (typeof options === 'string')
             options = { algorithm: options }
         if (typeof token !== 'string')
@@ -95,23 +95,31 @@ class JWT {
         if (!importAlgorithm)
             throw new Error('algorithm not found')
         const payload = this.decode(token)
-        if (payload.nbf && payload.nbf > Math.floor(Date.now() / 1000))
+        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 (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 = 'pkcs8'
+            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, ['sign'])
+        const key = await crypto.subtle.importKey(keyFormat, keyData, importAlgorithm, false, ['verify'])
-        const res = await crypto.subtle.sign(importAlgorithm, key, this._utf8ToUint8Array(tokenParts.slice(0, 2).join('.')))
+        return await crypto.subtle.verify(importAlgorithm, key, Base64URL.parse(tokenParts[2]), this._utf8ToUint8Array(`${tokenParts[0]}.${tokenParts[1]}`))
-        return Base64URL.stringify(new Uint8Array(res)) === tokenParts[2]
     }
     decode(token) {
-        return this._decodePayload(token.split('.')[1].replace(/-/g, '+').replace(/_/g, '/'))
+        return {
+            header: this._decodePayload(token.split('.')[0].replace(/-/g, '+').replace(/_/g, '/')),
+            payload: this._decodePayload(token.split('.')[1].replace(/-/g, '+').replace(/_/g, '/'))
+        }
     }
 }
 

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

@@ -1,8 +1,11 @@
 {
   "name": "@tsndr/cloudflare-worker-jwt",
-  "version": "1.1.7",
+  "version": "1.4.1",
   "description": "A lightweight JWT implementation with ZERO dependencies for Cloudflare Worker",
   "main": "index.js",
+  "scripts": {
+      "test": "jest"
+  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tsndr/cloudflare-worker-jwt.git"
@@ -19,5 +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"
+  }
 }