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

Azure Active Directory (AAD)

When you encounter Microsoft’s AAD for the first time, the most common (and wrong) idea is to think of AAD as simply the cloud counterpart of AD DS. AAD and AD DS are two completely different technologies that can work together but provide different authentication services. AD DS is a service that comes with Windows Server; it provides an LDAP directory, Kerberos, and NTLM authentication (along with other enterprise features, such as group policy management). AAD, on the other hand, is a modern IDP that doesn’t really know what those protocols are because it implements different ones, such as OAuth 2.0, SAML, WS-Federation, and OpenID Connect.

This means that AAD can be considered a hub centered within Microsoft’s services, as shown in the following diagram:

Figure 7.2 – AAD overview

Any AAD object can be accessed through a REST API called Microsoft Graph, which allows you to create, update, and delete...