OAuth 2 in Action

Summary

OAuth 2 in Action teaches you the practical use and deployment of this HTTP-based protocol from the perspectives of a client, authorization server, and resource server. You'll learn how to confidently and securely build and deploy OAuth on both the client and server sides. Foreword by Ian Glazer.

About the Technology

Think of OAuth 2 as the web version of a valet key. It is an HTTP-based security protocol that allows users of a service to enable applications to use that service on their behalf without handing over full control. And OAuth is used everywhere, from Facebook and Google, to startups and cloud services.

About the Book

OAuth 2 in Action teaches you practical use and deployment of OAuth 2 from the perspectives of a client, an authorization server, and a resource server. You'll begin with an overview of OAuth and its components and interactions. Next, you'll get hands-on and build an OAuth client, an authorization server, and a protected resource. Then you'll dig into tokens, dynamic client registration, and more advanced topics. By the end, you'll be able to confidently and securely build and deploy OAuth on both the client and server sides.

What's Inside

• Covers OAuth 2 protocol and design
• Authorization with OAuth 2
• OpenID Connect and User-Managed Access
• Implementation risks
• JOSE, introspection, revocation, and registration
• Protecting and accessing REST APIs

About the Reader

Readers need basic programming skills and knowledge of HTTP and JSON.

About the Author

Justin Richer is a systems architect and software engineer. Antonio Sanso is a security software engineer and a security researcher. Both authors contribute to open standards and open source.

Table of Contents

Part 1 - First steps
1. What is OAuth 2.0 and why should you care?
2. The OAuth dance
Part 2 - Building an OAuth 2 environment
3. Building a simple OAuth client
4. Building a simple OAuth protected resource
5. Building a simple OAuth authorization server
6. OAuth 2.0 in the real world
Part 3 - OAuth 2 implementation and vulnerabilities
7. Common client vulnerabilities
8. Common protected resources vulnerabilities
9. Common authorization server vulnerabilities
10. Common OAuth token vulnerabilities
Part 4 - Taking OAuth further
11. OAuth tokens
12. Dynamic client registration
13. User authentication with OAuth 2.0
14. Protocols and profiles using OAuth 2.0
15. Beyond bearer tokens
16. Summary and conclusions

Justin Richer is a systems architect, software engineer, standards editor, and service designer working as an independent consultant.

Antonio Sanso works as Security Software Engineer, he is a vulnerability security researcher and an active open source contributor.