jwt pro

jwt-pro is a powerful library for generating and verifying JSON Web Tokens (JWTs). It supports multiple algorithms, provides easy to use utilities for token management, and ensures secure handling of JWTs.

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Installation

This is a Node.js module available through the npm registry.

Before installing, download and install Node.js. Node.js 0.10 or higher is required.

If this is a brand new project, make sure to create a package.json first with the npm init command.

Installation is done using the npm install command:

Install the package using npm/yarn:

npm install jwt-pro

or

yarn add jwt-pro

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Use Cases

• Authentication: Secure user authentication in web applications.
• Authorization: Assign roles and permissions using encoded payloads.
• API Security: Secure communication between microservices or with external APIs.
• Session Management: Manage user sessions with token expiration and validation.

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Benefits for Developers

• Secure: Supports HMAC and RSA algorithms for secure token signing.
• Flexible: Customizable payload and headers for JWT generation.
• Easy-to-Use: Simple API for generating and verifying JWTs.
• Efficient: Handles token expiration, UUID generation, and algorithm support seamlessly.

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Supported Algorithms

Algorithm	Description
HS256	HMAC using SHA-256
HS384	HMAC using SHA-384
HS512	HMAC using SHA-512
RS256	RSA Signature (SHA-256)
RS384	RSA Signature (SHA-384)
RS512	RSA Signature (SHA-512)
ES256	ECDSA using P-256 curve (SHA-256)
ES384	ECDSA using P-384 curve (SHA-384)
ES512	ECDSA using P-521 curve (SHA-512)

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Features

Functionality	Description
Generate JWT	Generate signed JWTs with customizable headers, payloads, and expiration time.
Verify JWT	Verify JWTs against a secret key and ensure the token is valid and not expired.
Token Expiration	Users should provide expiry time in seconds; the default is 3600 seconds (1 hour).
Supported Algorithms	Supports multiple signing algorithms (HS, RS, ES) for token generation and verification.
Secrets Management	Provides strong secret key generation and storage recommendations for enhanced security.

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Example Usage

Importing the Package

const { generateToken, verifyToken } = require("jwt-pro");

JWT Generation

const { generateToken } = require('jwt-pro');

const header = { alg: "HS256", typ: "JWT" };
const payload = { "user": "john_doe", "role": "admin", "permissions": ["read", "write", "delete"] };
const secret = "supersecretkey"; // Use a strong secret key, e.g., from `random-password-toolkit` npm package.
const expiresIn = 3600; // User should provide expiry time in seconds; default is 3600 seconds (1 hour)

const token = generateToken(header, payload, secret, expiresIn);
console.log("Generated Token:", token);
// output: Generated Token: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyIjoiam9obl9kb2UiLCJyb2xlIjoiYWRtaW4iLCJwZXJtaXNzaW9ucyI6WyJyZWFkIiwid3JpdGUiLCJkZWxldGUiXSwianRpIjoiNjMyJpdGUiLCJkZWxldGUiXSwianRpIjoiNjMyN2U3MmQtZGQ1MC00Y2U1LTJlZmEtNGZjZjAxYjkyMDcyIiwiZXhwIjoxNzM3NTUzMzQ0fQ.a_AUEgpvlB-e4GhJc9-NljUQgaljFowYbsv1Jjjbebg

JWT Verification

const { verifyToken } = require('jwt-pro/src/jwtVerifier');

const token = 'your-jwt-token';
const secret = 'supersecretkey';
const payload = verifyToken(token, secret);
console.log("Verified Payload:", payload);

Secret Key Generation

For better security, use a strong secret key generator such as the random-password-toolkit npm package:

npm install random-password-toolkit

const { generatePassword } = require('random-password-toolkit');
const secret = generatePassword({ length: 32, numbers: true, symbols: true });
console.log("Generated Secret Key:", secret);

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Community and Ecosystem

By using JWT PRO, you are joining a growing community of developers who are passionate about secure passwords and encryption. We encourage you to share your experiences, ideas, and feedback on GitHub Discussions or any community platform of your choice.

• GitHub Discussions: Share use cases, report bugs, and suggest features.

We'd love to hear from you and see how you're using JWT PRO in your projects!

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Issues and Feedback

For issues, feedback, and feature requests, please open an issue on our GitHub Issues page. We actively monitor and respond to community feedback.