You're reading from Keycloak - Identity and Access Management for Modern Applications - Second Edition

Product typeBook

Published inJul 2023

PublisherPackt

ISBN-139781804616444

Edition2nd Edition

Tools

Keycloak

Concepts

Cybersecurity

Authors (2):

Stian Thorgersen

Pedro Igor Silva

View More author details

Using OAuth2 scopes

At its core, Keycloak is an OAuth2 authorization server. In pure OAuth2, there are two main types of applications: clients and resource servers.

As you learned from previous chapters about OAuth2, access tokens are issued to clients so that they can act on behalf of a user, where these tokens are limited to a set of scopes based on the user’s consent.

On the other hand, resource servers are the consumers of access tokens, which they need to introspect to decide whether the client can access a protected resource on the resource server accordingly to the scopes granted by the user.

As you can see, authorization using OAuth2 scopes is solely based on user consent. It is the best strategy when you want third parties integrating with your APIs so that you delegate to your users the decision on whether a third-party application can access their resources. In this strategy, the main point is to protect user information rather than regular resources...

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Keycloak - Identity and Access Management for Modern Applications - Second Edition

Published in: Jul 2023Publisher: PacktISBN-13: 9781804616444

Authors (2)

Stian Thorgersen

Stian Thorgersen started his career at Arjuna Technologies building a cloud federation platform, years before most companies were even ready for a single-vendor public cloud. He later joined Red Hat, looking for ways to make developers' lives easier, which is where the idea of Keycloak started. In 2013, Stian co-founded the Keycloak project with another developer at Red Hat. Today, Stian is the Keycloak project lead and is also the top contributor to the project. He is still employed by Red Hat as a senior principal software engineer focusing on identity and access management, both for Red Hat and for Red Hat's customers. In his spare time, there is nothing Stian likes more than throwing his bike down the mountains of Norway.
Read more about Stian Thorgersen

Pedro Igor Silva

Pedro Igor Silva is a proud dad of amazing girls. He started his career back in 2000 at an ISP, where he had his first experiences with open source projects such as FreeBSD and Linux, as well as a Java and J2EE software engineer. Since then, he has worked in different IT companies as a system engineer, system architect, and consultant. Today, Pedro Igor is a principal software engineer at Red Hat and one of the core developers of Keycloak. His main area of interest and study is now IT security, specifically in the application security and identity and access management spaces. In his non-working hours, he takes care of his planted aquariums.
Read more about Pedro Igor Silva

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