Authorization Models: RBAC, ABAC, ACL and Their Integration with OAuth2 and JWT

The article on authentication explores various methods including Basic, Bearer, OAuth2, JWT, and SSO. Each of these methods serves different purposes and the author provides examples to better illustrate their differences. Basic authentication is one of the simplest methods, but it can be insecure if not used in the right context. Bearer tokens present a more flexible approach and are commonly employed in modern web applications. OAuth2 is more complex yet offers numerous benefits in terms of security and user access management. In the concluding section, the author discusses SSO, which enables users to access multiple applications with a single set of credentials, greatly enhancing the user experience.