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Hands-On Spring Security 5 for Reactive Applications

You're reading from   Hands-On Spring Security 5 for Reactive Applications Learn effective ways to secure your applications with Spring and Spring WebFlux

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Product type Paperback
Published in Jul 2018
Publisher
ISBN-13 9781788995979
Length 268 pages
Edition 1st Edition
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Author (1):
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Tomcy John Tomcy John
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Tomcy John
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Table of Contents (9) Chapters Close

Preface 1. Overview of Spring 5 and Spring Security 5 FREE CHAPTER 2. Deep Diving into Spring Security 3. Authentication Using SAML, LDAP, and OAuth/OIDC 4. Authentication Using CAS and JAAS 5. Integrating with Spring WebFlux 6. REST API Security 7. Spring Security Add-Ons 8. Other Books You May Enjoy

Authorization

Once the user is validated in terms of who they claim to be, the next aspect, what the user has access to, needs to be ascertained. This process of making sure what the user is allowed to do within the application is called authorization.

In line with authentication architecture, as seen earlier, authorization also has a manager, AccessDecisionManager. Spring Security has three built-in implementations for this: AffirmativeBased, ConsensusBased, and UnanimousBased. AccessDecisionManager works by delegating to a chain of AccessDecisionVoter. Authorization-related Spring Security classes/interfaces are shown in the following diagram:

Figure 12: Spring Security Authorization classes/interfaces

In Spring Security, authorization to a secured resource is granted by invoking voters and then tallying the votes received. The three built-in implementations...

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