Secure Authentication and Authorization during Registration/Login with JWT and bcrypt
Secure Authentication and Authorization during Registration/Login with JWT and bcrypt In modern web applications, ensuring secure user authentication and authorization is crucial. Node.js provides robust tools like JWT (JSON Web Token) and bcrypt to help developers implement secure authentication systems. This blog will guide you through the use of JWT and bcrypt in a Node.js application, showcasing their roles in authentication and authorization processes. What is JWT? JWT (JSON Web Token) is a compact, URL-safe means of representing claims between two parties. The claims are encoded as a JSON object and can be digitally signed or encrypted, ensuring data integrity and security. Uses in Authentication and Authorization: 1. Authentication: Upon successful login, the server generates a JWT containing user information (e.g., user ID) and sends it back to the client. 2. Authorization: The client includes this token in the HTTP headers of subsequent requests (typically as a Bearer...