Book Image

Keycloak - Identity and Access Management for Modern Applications

By : Stian Thorgersen, Pedro Igor Silva
Book Image

Keycloak - Identity and Access Management for Modern Applications

By: Stian Thorgersen, Pedro Igor Silva

Overview of this book

Implementing authentication and authorization for applications can be a daunting experience, often leaving them exposed to security vulnerabilities. Keycloak is an open-source solution for identity management and access management for modern applications, which can make a world of difference if you learn how to use it. Keycloak, helping you get started with using it and securing your applications. Complete with hands-on tutorials, best practices, and self-assessment questions, this easy-to-follow guide will show you how to secure a sample application and then move on to securing different application types. As you progress, you will understand how to configure and manage Keycloak as well as how to leverage some of its more advanced capabilities. Finally, you'll gain insights into securely using Keycloak in production. By the end of this book, you will have learned how to install and manage Keycloak as well as how to secure new and existing applications.
Table of Contents (21 chapters)
Section 1: Getting Started with Keycloak
Section 2: Securing Applications with Keycloak
Section 3: Configuring and Managing Keycloak
Section 4: Security Considerations

Understanding the Discovery endpoint

The OIDC Discovery specification is an important aspect of both the interoperability and usability of OIDC Relying Party libraries. Without this specification, you would be required to do a lot of manual configuration in your applications to be able to authenticate with an OpenID Provider (more information on OpenID Providers can be found in Chapter 3, Brief Introduction to Standards).

It is an optional specification that an OpenID Provider can decide if it wants to implement or not. Luckily, most OpenID Providers, including Keycloak, implement this specification.

By simply knowing the base URL (often referred to as the issuer URL) for your OpenID Provider, a Relying Party can discover a lot of useful information about the provider. It does this by loading what is called the OpenID Provider Metadata from a standard endpoint, namely <base URL>/.well-known/openid-configuration.

To better understand the OpenID Provider Metadata, open...