This in-depth, 4-day course introduces the Java web developer to the Spring Security framework. We start with an overview and practical exercises in basic usage: XML configuration for authentication and URL-based authorization. Then we start to dig into Spring Security as a Java model, and develop advanced techniques including custom user realms, custom authorization constraints, method-based authorization, and instance-based authorization. Then we explore two increasingly popular extensions to Spring Security. We consider the Security Assertions Markup Language, or SAML, and the wide range of identity and security features it offers — but quickly focus on it’s support for single sign-on (SSO), and learn how the Spring Security SAML Extension enables applications to interact with SAML identity providers to implement SSO and single logout. And we look at OAuth for Spring Security, which enables third-party authorization scenarios, and learn how to implement both the server and client sides of the OAuth 2.0 flow.

Objectives

Configure Spring Security for HTTP BASIC authentication.

Implement form-based authentication.

Configure other authentication features including remember-me, anonymous users, and logout.

Apply authorization constraints to URLs and URL patterns.

Bind authorization roles to user accounts in relational databases.

Plug application-specific user realms into Spring Security by implementing UserDetailsService.

Implement application-specific authorization constraints as AccessDecisionVoters.

Fix authorization constraints over individual methods of service beans, in lieu of URL authorization or in tandem with it.

Express user identity in terms of SAML <Subject>s.

Implement SAML SSO from the service-provider side.

Implement OAuth 2.0 authorization-server and resource-server roles.

Implement an OAuth 2.0 client.

Detailed Outline

1. Spring Security
   • Acquiring and Integrating Spring Security
   • Relationship to Spring
   • Relationship to Java EE Standards
   • Basic Configuration
   • How It Works
   • Integration: LDAP, CAS, X.509, OpenID, etc.
   • Integration: JAAS
2. Authentication
   • The <http> Configuration
   • The <intercept-url> Constraint
   • The <form-login> Configuration
   • Login Form Design
   • “Remember Me”
   • Anonymous “Authentication”
   • Logout
   • The JDBC Authentication Provider
   • The Authentication/Authorization Schema
   • Using Hashed Passwords
   • Why Hashing Isn’t Enough
   • Using Salts
   • PasswordEncoder and SaltSource
   • Key Lengthening
   • Channel Security
   • Session Management
3. URL Authorization
   • URL Authorization
   • Programmatic Authorization: Servlets
   • Programmatic Authorization: Spring Security
   • Role-Based Presentation
   • The Spring Security Tag Library
4. Under the Hood: Authentication
   • The Spring Security API
   • The Filter Chain
   • Authentication Manager and Providers
   • The Security Context
   • Plug-In Points
   • Implementing UserDetailsService
   • Connecting User Details to the Domain Model
5. Under the Hood: Authorization
   • Authorization
   • FilterSecurityInterceptor and Friends
   • The AccessDecisionManager
   • Voting
   • Configuration Attributes
   • Implementing AccessDecision Voter
   • The Role Prefix
6. Method and Instance Authorization
   • Method Authorization
   • Using Spring AOP
   • XML vs. Annotations
   • @PreAuthorize and @PostAuthorize
   • Spring EL for Authorization
   • @PreFilter and @PostFilter
   • Domain-Object Authorization
   • The ACL Schema
   • Interface Model
   • ACL-Base Presentation
7. Introduction to SAML
   • History of SAML
   • Assertions
   • Protocol
   • Bindings
   • Profiles
   • Using OpenSAML
8. SAML Assertions and Protocol
   • ‘Vouching for’ a User
   • Assertions and Subjects
   • NameID Types
   • Authentication Contexts
   • Requests, Queries, and Responses
   • Attribute Queries
   • SAML and XML Signature
9. SAML Bindings
   • Speaking “Through” the Browser
   • The SOAP Binding
   • SAML Over HTTP
   • The Redirect, POST, and Artifact Bindings
   • The PAOS Binding
   • The URI Binding
10. Federated Identity and SSO
    • SAML 2.0 Federations
    • Single Sign-On
    • Account Linking and Persistent Pseudonyms
    • Transient Pseudonyms
    • Name ID Mapping
    • Single Logout
    • Federation Termination
11. The Spring Security SAML Extension
    • The Spring Security SAML Extension
    • The SAML Entry Point
    • The SAML Filter Chain
    • The SSO Processing Filters
    • IdP Discovery
    • Login and Logout Handlers
    • Configuring OpenAM
    • Configuring an SP
    • Customization
    • Combining SSO and Other Authentication Styles
    • Authorization and Attributes
12. OAuth for Spring Security
    • Third-Party Authorization
    • OAuth
    • Roles and Initial Flow
    • Grant Types
    • Access Tokens
    • The Google OAuth API
    • OAuth for Spring Security
    • Client-Details Services
    • Token Services
    • The AuthorizationEndpoint
    • The TokenEndpoint
    • The UserApprovalHandler
    • The Resource-Server Filter
    • The ScopeVoter
    • The OAuth-Aware RestTemplate
    • AccessTokenProviders
    • The OAuth Redirecting Filter