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Spring Security

You're reading from   Spring Security Secure your web applications, RESTful services, and microservice architectures

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Product type Paperback
Published in Nov 2017
Publisher Packt
ISBN-13 9781787129511
Length 542 pages
Edition 3rd Edition
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Authors (3):
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Robert Winch Robert Winch
Author Profile Icon Robert Winch
Robert Winch
Peter Mularien Peter Mularien
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Peter Mularien
Mick Knutson Mick Knutson
Author Profile Icon Mick Knutson
Mick Knutson
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Toc

Table of Contents (19) Chapters Close

Preface 1. Anatomy of an Unsafe Application 2. Getting Started with Spring Security FREE CHAPTER 3. Custom Authentication 4. JDBC-Based Authentication 5. Authentication with Spring Data 6. LDAP Directory Services 7. Remember-Me Services 8. Client Certificate Authentication with TLS 9. Opening up to OAuth 2 10. Single Sign-On with the Central Authentication Service 11. Fine-Grained Access Control 12. Access Control Lists 13. Custom Authorization 14. Session Management 15. Additional Spring Security Features 16. Migration to Spring Security 4.2 17. Microservice Security with OAuth 2 and JSON Web Tokens 18. Additional Reference Material

Understanding how Spring LDAP authentication works

We saw that we were able to log in using a user defined in the LDAP directory. But what exactly happens when a user issues a login request for a user in LDAP? There are the following three basic steps to the LDAP authentication process:

  1. Authenticate the credentials supplied by the user against the LDAP directory.
  2. Determine the GrantedAuthority object that the user has, based on their information in LDAP.
  3. Pre-load information from the LDAP entry for the user into a custom UserDetails object, for further use by the application.

Authenticating user credentials

For the first step, authentication against the LDAP directory, a custom authentication provider is wired into AuthenticationManager...

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