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WildFly_Elytron_Security.html
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<body id="WildFly_Elytron_Security" class="book toc2 toc-left">
<div id="header">
<h1>WildFly Elytron Security</h1>
<div class="details">
<span id="revnumber">version 17.0.0.Final,</span>
<span id="revdate">2019-07-15T01:10:21Z</span>
</div>
<div id="toc" class="toc2">
<div id="toctitle">WildFly Elytron Security Guide</div>
<ul class="sectlevel1">
<li><a href="#about">1. About</a>
<ul class="sectlevel2">
<li><a href="#elytron-authentication">1.1. Authentication</a></li>
<li><a href="#elytron-authorization">1.2. Authorization</a></li>
<li><a href="#about-ssl-tls">1.3. SSL / TLS</a></li>
<li><a href="#secure-credential-storage">1.4. Secure Credential Storage</a></li>
</ul>
</li>
<li><a href="#General_Elytron_Architecture">2. General Elytron Architecture</a>
<ul class="sectlevel2">
<li><a href="#security-domains">2.1. Security Domains</a></li>
<li><a href="#sasl-authentication">2.2. SASL Authentication</a></li>
<li><a href="#http-authentication">2.3. HTTP Authentication</a></li>
<li><a href="#ssl-tls">2.4. SSL / TLS</a></li>
<li><a href="#Passwords">2.5. Passwords</a></li>
</ul>
</li>
<li><a href="#Elytron_Subsystem">3. Elytron Subsystem</a>
<ul class="sectlevel2">
<li><a href="#get-started-using-the-elytron-subsystem">3.1. Get Started using the Elytron Subsystem</a></li>
<li><a href="#provided-components">3.2. Provided components</a></li>
<li><a href="#out-of-the-box-configuration">3.3. Out of the Box Configuration</a></li>
<li><a href="#default-application-authentication-configuration">3.4. Default Application Authentication Configuration</a></li>
<li><a href="#default-management-authentication-configuration">3.5. Default Management Authentication Configuration</a></li>
<li><a href="#comparing-legacy-approaches-to-elytron-approaches">3.6. Comparing Legacy Approaches to Elytron Approaches</a></li>
</ul>
</li>
<li><a href="#Using_the_Elytron_Subsystem">4. Using the Elytron Subsystem</a>
<ul class="sectlevel2">
<li><a href="#set-up-and-configure-authentication-for-applications">4.1. Set Up and Configure Authentication for Applications</a></li>
<li><a href="#set-up-and-configure-authentication-for-the-management-interfaces">4.2. Set up and Configure Authentication for the Management Interfaces</a></li>
<li><a href="#configure-ssltls">4.3. Configure SSL/TLS</a></li>
<li><a href="#configuring-the-elytron-and-security-subsystems">4.4. Configuring the Elytron and Security Subsystems</a></li>
<li><a href="#creating-elytron-subsystem-components">4.5. Creating Elytron Subsystem Components</a></li>
<li><a href="#component-documentation">4.6. Component Documentation</a></li>
</ul>
</li>
<li><a href="#Using_WildFly_Elytron_with_WildFly">5. Using Elytron within WildFly</a>
<ul class="sectlevel2">
<li><a href="#using-the-out-of-the-box-elytron-components">5.1. Using the Out of the Box Elytron Components</a></li>
<li><a href="#undertow-subsystem">5.2. Undertow Subsystem</a></li>
<li><a href="#ejb-subsystem">5.3. EJB Subsystem</a></li>
<li><a href="#webservices-subsystem">5.4. WebServices Subsystem</a></li>
<li><a href="#legacy-security-subsystem">5.5. Legacy Security Subsystem</a></li>
</ul>
</li>
<li><a href="#Client_Authentication_with_Elytron_Client">6. Client Authentication with Elytron Client</a>
<ul class="sectlevel2">
<li><a href="#the-configuration-file-approach">6.1. The Configuration File Approach</a></li>
<li><a href="#the-programmatic-approach">6.2. The Programmatic Approach</a></li>
<li><a href="#the-default-configuration-approach">6.3. The Default Configuration Approach</a></li>
<li><a href="#using-elytron-client-with-clients-deployed-to-wildfly">6.4. Using Elytron Client with Clients Deployed to WildFly</a></li>
<li><a href="#Configuring_other_clients_using_wildfly-config">6.5. Client configuration using wildfly-config.xml</a></li>
</ul>
</li>
<li><a href="#Elytron_and_Java_Authorization_Contract_for_Containers-JACC">7. Elytron and Java Authorization Contract for Containers (JACC)</a>
<ul class="sectlevel2">
<li><a href="#disabling-jacc-in-legacy-security-subsystem-picketbox">7.1. Disabling JACC in Legacy Security Subsystem (PicketBox)</a></li>
<li><a href="#defining-a-jacc-policy-provider">7.2. Defining a JACC Policy Provider</a></li>
<li><a href="#enabling-jacc-to-a-web-deployment">7.3. Enabling JACC to a Web Deployment</a></li>
<li><a href="#enabling-jacc-to-a-ejb-deployment">7.4. Enabling JACC to a EJB Deployment</a></li>
</ul>
</li>
<li><a href="#Elytron_and_Java_Authentication_SPI_for_Containers-JASPI">9. Elytron and Java Authentication SPI for Containers (JASPI)</a>
<ul class="sectlevel1">
<li><a href="#introduction">8. Introduction</a>
<ul class="sectlevel2">
<li><a href="#activation">8.1. Activation</a></li>
<li><a href="#subsystem-configuration">8.2. Subsystem Configuration</a></li>
<li><a href="#programatic-configuration">8.3. Programatic Configuration</a></li>
<li><a href="#authentication-process">8.4. Authentication Process</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#Elytron_and_Java_EE_Security">11. Elytron and Java EE Security</a>
<ul class="sectlevel1">
<li><a href="#introduction-2">10. Introduction</a>
<ul class="sectlevel2">
<li><a href="#activation-2">10.1. Activation</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#KeyCloak_Integration">12. Using KeyCloak with WildFly Elytron</a></li>
<li><a href="#Bearer_Token_Authorization">13. Bearer Token Authorization</a>
<ul class="sectlevel2">
<li><a href="#how-it-works">13.1. How it Works</a></li>
<li><a href="#validating-jwt-tokens">13.2. Validating JWT Tokens</a></li>
<li><a href="#validating-oauth2-bearer-tokens">13.3. Validating OAuth2 Bearer Tokens</a></li>
<li><a href="#quickstarts">13.4. Quickstarts</a></li>
<li><a href="#cli-examples-on-how-to-create-a-token-realm">13.5. CLI Examples on How to Create a Token Realm</a></li>
</ul>
</li>
<li><a href="#OpenSSL">14. OpenSSL</a></li>
<li><a href="#Web_Single_Sign_On">15. Web Single Sign-On</a>
<ul class="sectlevel2">
<li><a href="#create-a-server-configuration-template">15.1. Create a Server Configuration Template</a></li>
<li><a href="#create-two-server-instances">15.2. Create Two Server Instances</a></li>
<li><a href="#deploy-an-application">15.3. Deploy an Application</a></li>
</ul>
</li>
<li><a href="#Audit">16. Audit</a>
<ul class="sectlevel2">
<li><a href="#file-audit-log">16.1. File audit log</a></li>
</ul>
</li>
<li><a href="#Custom_Components">17. Custom Components</a>
<ul class="sectlevel2">
<li><a href="#security-event-listener">17.1. Security event listener</a></li>
<li><a href="#configurable-custom-components">17.2. Configurable custom components</a></li>
</ul>
</li>
<li><a href="#Migrate_Legacy_Security_to_Elytron_Security">18. Migrate Legacy Security to Elytron Security</a>
<ul class="sectlevel2">
<li><a href="#authentication-configuration">18.1. Authentication Configuration</a></li>
<li><a href="#Properties_File_Based_Authentication_Migration">18.2. Properties Based Authentication / Authorization</a></li>
<li><a href="#LDAP_Based_Authentication_Migration">18.3. LDAP Authentication Migration</a></li>
<li><a href="#Composite_Stores_Migration">18.4. Composite Stores Migration</a></li>
<li><a href="#Database_Authentication_Migration">18.5. Database Authentication</a></li>
<li><a href="#Kerberos_Based_Authentication_Migration">18.6. Kerberos Authentication Migration</a></li>
<li><a href="#Caching_Migration">18.7. Caching Migration</a></li>
<li><a href="#clients">18.8. Clients</a></li>
<li><a href="#Application_Client_Migration">18.9. Application Client Migration</a></li>
<li><a href="#general-utilities">18.10. General Utilities</a></li>
<li><a href="#Security_Vault_Migration">18.11. Security Vault Migration</a></li>
<li><a href="#Security_Property_Migration">18.12. Security Properties</a></li>
<li><a href="#ssl-migration">18.13. SSL Migration</a></li>
<li><a href="#Simple_SSL_Migration">18.14. Simple SSL Migration</a></li>
<li><a href="#SSL_with_Client_Cert_Migration">18.15. SSL with Client Cert Migration</a></li>
<li><a href="#documentation-still-needed">18.16. Documentation Still Needed</a></li>
</ul>
</li>
</ul>
</div>
</div>
<div id="content">
<div id="preamble">
<div class="sectionbody">
<!-- toc disabled -->
</div>
</div>
<div class="sect1">
<h2 id="about">1. About</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The WildFly Elytron project is a new security framework brought to
WildFly to provide a single unified security framework across the whole
of the application server. As a single framework it will be usable both
for configuring management access to the server and for applications
deployed to the server, it will also be usable across all process types
so there will be no need to learn a different security framework for
host controllers in a domain compared to configuring a standalone
server.</p>
</div>
<div class="paragraph">
<p>The project covers these main areas: -</p>
</div>
<div class="ulist">
<ul>
<li>
<p>Authentication</p>
</li>
<li>
<p>Authorization</p>
</li>
<li>
<p>SSL / TLS</p>
</li>
<li>
<p>Secure Credential Storage</p>
</li>
</ul>
</div>
<div class="sect2">
<h3 id="elytron-authentication">1.1. Authentication</h3>
<div class="paragraph">
<p>One of the fundamental objectives of the project was to ensure that we
can use stronger authentication mechanisms for both HTTP and SASL based
authentication, in both cases the new framework also makes it possible
to bring in new implementations opening up various integration
opportunities with external solutions.</p>
</div>
</div>
<div class="sect2">
<h3 id="elytron-authorization">1.2. Authorization</h3>
<div class="paragraph">
<p>The architecture of the project makes a very clear distinction between
the raw representation of the identity as returned by a SecurityRealm
from the repository of identities and the final representation as a
SecurityIdentity after roles have been decoded and mapped and
permissions have been mapped.</p>
</div>
<div class="paragraph">
<p>Custom implementations of the components to perform role decoding and
mapping, and permission mapping can be provided allowing for further
flexibility beyond the default set of components provided by the
project.</p>
</div>
</div>
<div class="sect2">
<h3 id="about-ssl-tls">1.3. SSL / TLS</h3>
<div class="paragraph">
<p>The project becomes the centralised point within the application server
for configuring SSL related resources meaning they can be configured in
a central location and referenced by resources across the application
server. The centralised configuration also covers advanced options such
as configuration of enabled cipher suites and protocols without this
information needing to be distributed across the management model.</p>
</div>
<div class="paragraph">
<p>The SSL / TLS implementation also includes an optimisation where it can
be closely tied to authentication allowing for permissions checks to be
performed on establishment of a connection before the first request is
received and the eager construction of a SecurityIdentity eliminating
the need for it to be constructed on a per-request basis.</p>
</div>
</div>
<div class="sect2">
<h3 id="secure-credential-storage">1.4. Secure Credential Storage</h3>
<div class="paragraph">
<p>The previous vault used for plain text String encryption is replaced
with a newly designed credential store. in addition to the protection it
offers for the credentials stored within it, the store currently
supports storage of clear text credentials.</p>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="General_Elytron_Architecture">2. General Elytron Architecture</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The overall architecture for WildFly Elytron is building up a full
security policy from assembling smaller components together, by default
we include various implementations of the components - in addition to
this, custom implementations of many components can be provided in order
to provide more specialised implementations.</p>
</div>
<div class="paragraph">
<p>Within WildFly the different Elytron components are handled as
capabilities meaning that different implementations can be mixed and
matched, however the different implementations are modelled using
distinct resources. This section contains a number of diagrams to show
the general relationships between different components to provide a high
level view, however the different resource definitions may use different
dependencies depending on their purpose.</p>
</div>
<div class="sect2">
<h3 id="security-domains">2.1. Security Domains</h3>
<div class="paragraph">
<p>Within WildFly Elytron a SecurityDomain can be considered as a security
policy backed by one or more SecurityRealm instances. Resources that
make authorization decisions will be associated with a SecurityDomain,
from the SecurityDomain a SecurityIdentity can be obtained which is a
representation of the current identity, from this the identities roles
and permissions can be checked to make the authorization decision for
the resource.</p>
</div>
<div class="paragraph">
<p>The SecurityDomain is the general wrapper around the policy describing a
resulting SecurityIdentity and makes use of the following components to
define this policy.</p>
</div>
<div class="ulist">
<ul>
<li>
<p>NameRewriter</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>NameRewriters are used in multiple places within the Elytron
configuration, as their name implies, their purpose is to take a name
and map it to another representation of the name or perform some
normalisation or clean up of the name.</p>
</div>
<div class="ulist">
<ul>
<li>
<p>RealmMapper</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>As a SecurityDomain is able to reference multiple SecurityRealms the
RealmMapper is responsible for identifying which SecurityRealm to use
based on the supplied name for authentication.</p>
</div>
<div class="ulist">
<ul>
<li>
<p>SecurityRealm</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>One more more named SecurityRealms are associated with a SecurityDomain,
the SecurityRealms are the access to the underlying repository of
identities and are used for obtaining credentials to allow
authentication mechanisms to perform verification, for validation of
Evidence and for obtaining the raw AuthorizationIdentity performing the
authentication.</p>
</div>
<div class="paragraph">
<p>Some SecurityRealm implementations are also modifiable so expose an API
that allows for updates to be made to the repository containing the
identities.</p>
</div>
<div class="ulist">
<ul>
<li>
<p>RoleDecoder</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Along with the SecurityRealm association is also a reference to a
RoleDecoder, the RoleDecoder takes the raw AuthorizationIdentity
returned from the SecurityRealm and converts it’s attributes into roles.</p>
</div>
<div class="ulist">
<ul>
<li>
<p>RoleMapper</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>After the roles have been decoded for an identity further mapping can be
applied, this could be as simple at normalising the format of the names
through to adding or removing specific role names. If a RoleMapper is
referenced by the SecurityRealm association that RoleMapper is applied
first before applying the RoleMapper associated with the SecurityDomain.</p>
</div>
<div class="ulist">
<ul>
<li>
<p>PrincipalDecoder</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>A PrincipalDecoder converts from a Principal to a String representation
of a name, one example for this is we have an X500PrincipalDecoder which
is able to extract an attribute from a distinguished name.</p>
</div>
<div class="ulist">
<ul>
<li>
<p>PermissionMapper</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>In addition to having roles a SecurityIdentity can also have a set of
permissions, the PermissionMapper assigns those permissions to the
identity.</p>
</div>
<div class="paragraph">
<p>Different secured resources can be associated with different
SecurityDomains for their authorization decisions, within WildFly
Elytron we have the ability to configure inflow between different
SecurityDomains. The inflow process means that a SecurityIdentity
inflowed into a second SecurityDomain has the mappings of the new
SecurityDomain applied to it so although a common identity may be
calling different resources each of those resources could have a very
different view.</p>
</div>
</div>
<div class="sect2">
<h3 id="sasl-authentication">2.2. SASL Authentication</h3>
<div class="paragraph">
<p>The SaslAuthenticationFactory is an authentication policy for
authentication using SASL authentication mechanisms, in addition to
being a policy it is also a factory for configured authentication
mechanisms backed by a SecurityDomain.</p>
</div>
<div class="paragraph">
<p>The SaslAuthenticationFactory references the following: -</p>
</div>
<div class="ulist">
<ul>
<li>
<p>SecurityDomain</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>This is the security domain that any mechanism authentication will be
performed against.</p>
</div>
<div class="ulist">
<ul>
<li>
<p>SaslServerFactory</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>This is the general factory for server side SASL authentication
mechanisms.</p>
</div>
<div class="ulist">
<ul>
<li>
<p>MechanismConfigurationSelector</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Additional configuration can be supplied for the authentication
mechanisms, the configuration will be described in more detail later but
the purpose of the MechanismConfigurationSelector is to obtain
configuration specific to the mechanism selected. This can include
information about realm names a mechanism should present to a remote
client plus additional NameRewriters and RealmMappers to use during the
authentication process.</p>
</div>
<div class="paragraph">
<p>The reason some of the components referenced by the SecurityDomain are
duplicated is so that mechanism specific mappings can be applied.</p>
</div>
</div>
<div class="sect2">
<h3 id="http-authentication">2.3. HTTP Authentication</h3>
<div class="paragraph">
<p>The HttpAuthenticationFactory is an authentication policy for
authentication using HTTP authentication mechanisms, in addition to
being a policy it is also a factory for configured authentication
mechanisms backed by a SecurityDomain.</p>
</div>
<div class="paragraph">
<p>The HttpAuthenticationFactory references the following: -</p>
</div>
<div class="ulist">
<ul>
<li>
<p>SecurityDomain</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>This is the security domain that any mechanism authentication will be
performed against.</p>
</div>
<div class="ulist">
<ul>
<li>
<p>HttpServerAuthenticationMechanismFactory</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>This is the general factory for server side HTTP authentication
mechanisms.</p>
</div>
<div class="ulist">
<ul>
<li>
<p>MechanismConfigurationSelector</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>Additional configuration can be supplied for the authentication
mechanisms, the configuration will be described in more detail later but
the purpose of the MechanismConfigurationSelector is to obtain
configuration specific to the mechanism selected. This can include
information about realm names a mechanism should present to a remote
client plus additional NameRewriters and RealmMappers to use during the