Book Image

Cloud Identity Patterns and Strategies

By : Giuseppe Di Federico, Fabrizio Barcaroli
5 (1)
Book Image

Cloud Identity Patterns and Strategies

5 (1)
By: Giuseppe Di Federico, Fabrizio Barcaroli

Overview of this book

Identity is paramount for every architecture design, making it crucial for enterprise and solutions architects to understand the benefits and pitfalls of implementing identity patterns. However, information on cloud identity patterns is generally scattered across different sources and rarely approached from an architect’s perspective, and this is what Cloud Identity Patterns and Strategies aims to solve, empowering solutions architects to take an active part in implementing identity solutions. Throughout this book, you’ll cover various theoretical topics along with practical examples that follow the implementation of a standard de facto identity provider (IdP) in an enterprise, such as Azure Active Directory. As you progress through the chapters, you’ll explore the different factors that contribute to an enterprise's current status quo around identities and harness modern authentication approaches to meet specific requirements of an enterprise. You’ll also be able to make sense of how modern application designs are impacted by the company’s choices and move on to recognize how a healthy organization tackles identity and critical tasks that the development teams pivot on. By the end of this book, you’ll be able to breeze through creating portable, robust, and reliable applications that can interact with each other.
Table of Contents (15 chapters)
Part 1: Impact of Digital Transformation
Part 2: OAuth Implementation and Patterns
Part 3: Real-World Scenarios

Authentication Flows

We know that OpenID Connect (OIDC) extends the OAuth 2.0 protocol by introducing new flows, reusing some of the existing ones, and by placing the user, not the application, at the center of such flows. In this chapter, we will go through OAuth 2.0 and OIDC basics, learn about their flows, similarities, and differences, and where they can be used and why.

The chapter covers the following main topics:

  • The authorization code grant flow
  • The authorization code grant flow with Proof Key for Code Exchange
  • The implicit grant flow
  • The client credentials grant flow
  • The Resource Owner Password Credentials (ROPC) grant flow
  • The On-Behalf-Of (OBO) flow
  • Hybrid flows

Here’s a list of the flows and their support:

Figure 4.1 – OIDC/OAuth 2.0 flow support summary