The Shibboleth V1 software has reached its End of Life and is no longer supported. This documentation is available for historical purposes only.

EAuthenticationDeployment

Owned by Scott Cantor
Last updated: Jan 02, 2007 by Former user (Deleted)Version comment
3 min read

The Federal E-Authentication profile specifies the SAML 1.0 artifact profile in conjunction with some restrictions on assertion content. ShibOnedotThree supports this profile.

Configure an IdP for E-Authentication Use

The set-up process assumes that a complete InQueue installation and testing has been performed and you have a functional Shibboleth IdP. If not, complete that section first.

  • Add a virtual host in apache that uses the proper eAuth cert/key for SSL (in ssl.conf).
  • Create SAML2 metadata for each AA (sample below).
  • Add a metadata provider element (in idp.xml) that points to eAuth metadata. (<MetadataProvider/> in the sample below)
  • Add a protocol handler for the eAuth SSO handler (in idp.xml) (<ProtocolHandler/> in the sample below).
  • Add an extra location for the artifact lookup handler that maps to eAuth SSL endpoint (in idp.xml) (<ProtocolHandler implementation="edu.internet2.middleware.shibboleth.idp.provider.SAMLv1_1ArtifactQueryHandler"/> in the sample below).
  • Add servlet mappings for the eAuth SSO handler and the eAuth location for the artifact lookup handler (in web.xml).
  • Add a name mapping that uses Subject DNs (in idp.xml) (<NameMapping/> in the sample below).
  • Add a relying party element w/defaultTarget (this should be equal to the "TARGET" query parameter used in the artifact redirect) for each AA (in idp.xml) (<RelyingParty/> in the sample below)
  • Adjust the attribute resolver configuration to include a commonName attribute. (in resolver.xml) (don't forget the eAuth namespace).

Example resolver.xml snippet:

<SimpleAttributeDefinition id="commonName" sourceName="commonName" namespace="http://eauthentication.gsa.gov/federated/attribute">
	<DataConnectorDependency requires="echo"/>
</SimpleAttributeDefinition>
  • Adjust the attribute release polices to release the commonName attribute (in arp.site.xml).
  • Configure the SAML 1->1.1 filter (in web.xml).

Example web.xml snippet:

<filter>
	<filter-name>SAML 1 to 1.1 Conversion Filter</filter-name>
	<filter-class>edu.internet2.middleware.shibboleth.utils.SAML1_0to1_1ConversionFilter</filter-class>
</filter>
<filter-mapping>
	<filter-name>SAML 1 to 1.1 Conversion Filter</filter-name>
	<url-pattern>/eAuthArt</url-pattern>
</filter-mapping>

Notes

The Sun AA implementation does not seem to work with the SSLVerifyClient optional_no_ca Apache directive. To get around this, you must configure client-auth and create an appropriate trust bundle.

Example SAML 2.0 metadata for E-Authentication use: eAuth-sites.xml

Example idp.xml file for E-Authentication use: idp.xml

Configure an SP for E-Authentication Use

The set-up process assumes that a complete InQueue installation and testing has been performed and you have a functional Shibboleth SP. If not, complete that section first.

shibboleth.xml Configuration

The ShibbolethApplication being configured for EAuthenticationDeployment must have an AssertionConsumerService element inside its Sessions element set up as below:

<md:AssertionConsumerService xmlns:samlp="urn:oasis:names:tc:SAML:1.0:protocol"
	Location="/SAML/Artifact" index="1"
	Binding="urn:oasis:names:tc:SAML:1.0:profiles:artifact-01"
	samlp:MinorVersion="0">

The index value can be anything as long as it's unique within the set of elements. The distinction with a normal artifact profile endpoint is the additional namespace-qualified MinorVersion attribute. This attribute defaults to 1, indicating support for SAML 1.1 in most Shibboleth configurations. Set it to 0 to enable SAML 1.0 support. This works for POST or artifact, but EAuthenticationDeployment requires the use of artifact.

Additional settings that may be helpful...

  • strictValidity and propagateErrors in your MemorySessionCache or MySQLSessionCache element may need to be "false" to prevent premature expiration of the attributes included in the short-lived EAuthnAssertion, and in some cases the lack of an AttributeAuthority offered by the IdentityProvider to refresh them
AttributeAcceptancePolicy Configuration

A starting policy file is attached: eauth-AAP.xml

CredentialServiceProvider MetaData Configuration

Supplying MetaData for an EAuth CredentialServiceProvider is essentially the same as for any other Shibboleth IdentityProvider, except that:

  • The EntityDescriptor element's entityID attribute is set to the CSP's approved value for Assertion Issuer
  • The IDPSSODescriptor element's protocolSupportEnumeration attribute must contain "urn:oasis:names:tc:SAML:1.0:protocol" to indicate support for SAML 1.0
  • The SingleSignOnService element's Binding attribute can be set to urn:mace:shibboleth:1.0:profiles:EAuth (currently not used, but identifies the redirection protocol that might be used to invoke the CSP)
  • There may not be an AttributeAuthorityDescriptor included