Protect message authenticity by configuring token consumers using JAX-RPC

Network Deployment (Distributed operating systems), v8.0 > Secure applications and their environment > Secure web services > Secure web services > Administer Web Services Security > Administer message-level security for JAX-RPC web services > Configure message-level security for JAX-RPC at the application level

Configure token consumers using JAX-RPC to protect message authenticity at the application level

We can specify the token consumer on the application level. The token consumer information is used on the consumer side to incorporate the security token.

You need to understand that the keystore/alias information that provided for the generator, and the keystore/alias information that provided for the consumer are used for different purposes. The main difference applies to the Alias for an X.509 callback handler.
When used in association with an encryption consumer, the alias supplied for the consumer is used retrieve the private key to decrypt the message. A password is required. When associated with a signature consumer, the alias supplied for the consumer is used strictly to retrieve the public key used to resolve an X.509 certificate that is not passed in the SOAP security header as a BinarySecurityToken. A password is not required.

Complete the following steps to configure the token consumer on the application level.

Procedure
Locate the token consumer panel in the admin console.

Click Applications > Application Types > WebSphere enterprise applications > application_name .

Under Modules, click Manage modules > URI_name .

Under Web Services Security Properties you can access the token consumer for the following bindings:

For the request consumer (receiver) binding, click Web services: Server security bindings. Under Request consumer (receiver) binding, click Edit custom.
For the response consumer (receiver) binding, click Web services: Client security bindings. Under Response consumer (receiver) binding, click Edit custom.

Under Required properties, click Token consumer.

Click New to create a token consumer configuration, click Delete to delete an existing configuration, or click the name of an existing token consumer configuration to edit its settings. If you are creating a new configuration, enter a unique name in the Token consumer name field. For example, you might specify con_signtcon.

Specify a class name in the Token consumer class name field. The JAAS (JAAS) Login Module implementation is used to validate (authenticate) the security token on the consumer side.
The token consumer class name for the request consumer and the response consumer must be similar to the token generator class name for the request generator and the response generator. For example, if your application requires a user name token consumer, you can specify the com.ibm.wsspi.wssecurity.token.UsernameTokenGenerator class name on the Token generator panel for application level and the com.ibm.wsspi.wssecurity.token.UsernameTokenConsumer class name in this field.

Optional: Select a part reference in the Part reference field. The part reference indicates the name of the security token that is defined in the deployment descriptor. For example, if you receive a username token in your request message, you might want to reference the token in the username token consumer.
On the application level, if you do not specify a security token in your deployment descriptor, the Part reference field is not displayed. If you define a security token called user_tcon in your deployment descriptor, user_tcon is displayed as an option in the Part reference field.

Optional: In the certificate path section of the panel, select a certificate store type and indicate the trust anchor and certificate store name, if necessary. These options and fields are necessary when you specify com.ibm.wsspi.wssecurity.token.X509TokenConsumer as the token consumer class name. The names of the trust anchor and the collection certificate store are created in the certificate path under your token consumer.
Restriction: The com.ibm.wsspi.wssecurity.token.TokenConsumingComponent interface is not used with JAX-WS web services. If you are using JAX-RPC web services, this interface is still valid.
We can select one of the following options:

None

If you select this option, the certificate path is not specified.

Trust any

If you select this option, any certificate is trusted. When the received token is consumed, the Application Server does not validate the certificate path.

Dedicated signing information

If you select this option, you can select a trust anchor and a certificate store configuration. When you select the trust anchor or the certificate store of a trusted certificate, configure the trust anchor and the certificate store before setting the certificate path.

Trust anchor

A trust anchor specifies a list of key store configurations that contain trusted root certificates. These configurations are used to validate the certificate path of incoming X.509-formatted security tokens. Keystore objects within trust anchors contain trusted root certificates that are used by the CertPath API to validate the trustworthiness of a certificate chain. Create the keystore file using the key tool utility, which is located in the install_dir/java/jre/bin/keytool file.
You can configure trust anchors for the application level by completing the following steps:

Click Applications > Application Types > WebSphere enterprise applications > application_name.

Under Related Items, click EJB Modules or Web Modules > URI_name .
Access the token consumer from the following bindings:

For the request consumer (receiver) binding, click Web services: Server security bindings. Under Request consumer (receiver) binding, click Edit custom.
For the response consumer (receiver) binding, click Web services: Client security bindings. Under Response consumer (receiver) binding, click Edit custom.

Under Additional properties, click Trust anchors.

Collection certificate store

A collection certificate store includes a list of untrusted, intermediary certificates and certificate revocation lists (CRLs). The collection certificate store is used to validate the certificate path of the incoming X.509-formatted security tokens. We can configure the collection certificate store for the application level by completing the following steps:

Click Applications > Application Types > WebSphere enterprise applications > application_name.

Under Related Items, click EJB Modules or Web Modules > URI_name .
Access the token consumer from the following bindings:

For the request consumer (receiver) binding, click Web services: Server security bindings. Under Request consumer (receiver) binding, click Edit custom.
For the response consumer (receiver) binding, click Web services: Client security bindings. Under Response consumer (receiver) binding, click Edit custom.

Under Additional properties, click Collection certificate store.
Optional: Specify a trusted ID evaluator. The trusted ID evaluator is used to determine whether to trust the received ID. We can select one of the following options:

None

If you select this option, the trusted ID evaluator is not specified.

Existing evaluator definition

If you select this option, you can select one of the configured trusted ID evaluators. For example, you can select the SampleTrustedIDEvaluator, which is provided by WAS as an example.

Binding evaluator definition

If you select this option, you can configure a new trusted ID evaluator by specifying a trusted ID evaluator name and class name.

Trusted ID evaluator name

Name used by the application binding to refer to a trusted identity (ID) evaluator that is defined in the default bindings.

Trusted ID evaluator class name
Species the class name of the trusted ID evaluator. The specified trusted ID evaluator class name must implement the com.ibm.wsspi.wssecurity.id.TrustedIDEvaluator interface. The default TrustedIDEvaluator class is com.ibm.wsspi.wssecurity.id.TrustedIDEvaluatorImpl. When you use this default TrustedIDEvaluator class, specify the name and value properties for the default trusted ID evaluator to create the trusted ID list for evaluation.
To specify the name and value properties...

Under Additional properties, click Properties > New.

Specify the trusted ID evaluator name in the Property field. We must specify the name in the form, trustedId_n where _n is an integer from 0 to n.

Specify the trusted ID in the Value field.

For example:
property name="trustedId_0", value="CN=Bob,O=ACME,C=US"
property name="trustedId_1, value="user1"
If the distinguished name (DN) is used, the space is removed for comparison. See the programming model information in the documentation for an explanation of how to implement the com.ibm.wsspi.wssecurity.id.TrustedIDEvaluator interface. See Default implementations of the Web Services Security service provider programming interfaces.
Define the trusted ID evaluator on the server level instead of the application level.
To define the trusted ID evaluator on the server level, complete the following steps:

Click Servers > Server Types > WebSphere application servers > server_name

Under Security, click JAX-WS and JAX-RPC security runtime.
Mixed-version environment: In a mixed node cell with a server using WAS version 6.1 or earlier, click Web services: Default bindings for Web Services Security.mixv

Under Additional properties, click Trusted ID evaluators.

Click New to define a new trusted ID evaluator.
The trusted ID evaluator configuration is available only for the token consumer on the server-side application level.
Optional: Select the Verify nonce option. This option indicates whether to verify a nonce in the user name token if it is specified for the token consumer. Nonce is a unique, cryptographic number that is embedded in a message to help stop repeat, unauthorized attacks of user name tokens. The Verify nonce option is valid only when the incorporated token type is a user name token.

Optional: Select the Verify timestamp option. This option indicates whether to verify a time stamp in the user name token. The Verify nonce option is valid only when the incorporated token type is a user name token.

Specify the value type local name in the Local name field. This field specifies the local name of the value type for the consumed token. For a user name token and an X.509 certificate security token, WAS provides predefined local names for the value type.

Uniform Resource Identifier (URI) and Local name combinations. The local name indicates the type of consumed token.

URI Local name Description
A namespace URI is not applicable. Specify http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3 as the local name. Name of an X.509 certificate token
A namespace URI is not applicable. Specify http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509PKIPathv1 as the local name. Name of the X.509 certificates in a PKI path
A namespace URI is not applicable. Specify http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#PKCS7 as the local name. Specifies a list of X509 certificates and certificate revocation lists (CRL) in a PKCS#7
Specify http://www.ibm.com/websphere/appserver/tokentype/5.0.2 as the URI value. Specify LTPA as the local name. Specifies a binary security token that contains an embedded Lightweight Third Party Authentication (LTPA) token.

Optional: Specify the value type URI in the URI field. This entry specifies the namespace URI of the value type for the consumed token.
Remember: If you specify the token consumer for a username token or an X.509 certificate security token, you do not need to specify a value type URI.
If you want to specify another token, specify both the local name and the URI. For example, if we have an implementation of your own custom token, you can specify CustomToken in the Local name field and http://www.ibm.com/custom

Click OK and Save to save the configuration.

Click the name of your token consumer configuration.

Under Additional properties, click JAAS configuration. The Java Authentication and Authorization Service (JAAS) configuration specifies the name of the JAAS configuration that is defined in the JAAS login panel. The JAAS configuration specifies how the token logs in on the consumer side.

Select a JAAS configuration from the JAAS configuration name field. The field specifies the name of the JAAS system of application login configuration. You can specify additional JAAS system and application configurations by clicking Global security. Under Authentication, click JAAS and click either Application logins > New or System logins > New. For more information on the JAAS configurations, see JAAS configuration settings. Do not remove the predefined system or application login configurations. However, within these configurations, you can add module class names and specify the order in which WAS loads each module. WAS provides the following predefined JAAS configurations:

ClientContainer

This selection specifies the login configuration used by the client container applications. The configuration uses the CallbackHandler API that is defined in the deployment descriptor for the client container.
To modify this configuration, see the JAAS configuration panel for application logins.

WSLogin

This selection specifies whether all of the applications can use the WSLogin configuration to perform authentication for the security run time.
To modify this configuration, see the JAAS configuration panel for application logins.

DefaultPrincipalMapping

This selection specifies the login configuration used by Java 2 Connectors (J2C) to map users to principals that are defined in the J2C authentication data entries.
To modify this configuration, see the JAAS configuration panel for application logins.

system.LTPA_WEB

This selection processes login requests that are used by the web container such as servlets and JSP (JSPs) files.
To modify this configuration, see the JAAS configuration panel for system logins.

system.RMI_OUTBOUND

This selection processes RMI requests that are sent outbound to another server when the com.ibm.CSIOutboundPropagationEnabled property is true. This property is set in the CSIv2 authentication panel.
To access the panel, click Security > Global security . Under Authentication, click RMI/IIOP security > CSIv2 Outbound authentication .
To set the com.ibm.CSIOutboundPropagationEnabled property, select Security attribute propagation.
To modify this JAAS login configuration, see the JAAS - System logins panel.

system.wssecurity.X509BST

This selection verifies an X.509 binary security token (BST) by checking the validity of the certificate and the certificate path. To modify this configuration, see the JAAS configuration panel for system logins.

system.wssecurity.PKCS7

This selection verifies an X.509 certificate within a PKCS7 object that might include a certificate chain, a certificate revocation list, or both.
To modify this configuration, see the JAAS configuration panel for system logins.

system.wssecurity.PkiPath

This section verifies an X.509 certificate with a public key infrastructure (PKI) path.
To modify this configuration, see the JAAS configuration panel for system logins.

system.wssecurity.UsernameToken

This selection verifies the basic authentication (user name and password) data.
To modify this configuration, see the JAAS configuration panel for system logins.

system.wssecurity.IDAssertionUsernameToken

This selection supports the use of identity assertion in Versions 6 and later applications to map a user name to a WAS credential principal. To modify this configuration, see the JAAS configuration panel for system logins.

system.WSS_INBOUND

This selection specifies the login configuration for inbound or consumer requests for security token propagation using Web Services Security.
To modify this configuration, see the JAAS configuration panel for system logins.

system.WSS_OUTBOUND

This selection specifies the login configuration for outbound or generator requests for security token propagation using Web Services Security.
To modify this configuration, see the JAAS configuration panel for system logins.

None

With this selection, you do not specify a JAAS login configuration.

Click OK and then click Save to save the configuration.
Results
You have configured the token consumer for the application level.

What to do next
We must specify a similar token generator configuration for the application level.

Related

Request consumer (receiver) binding configuration settings
Response consumer (receiver) binding configuration settings
JAAS configuration settings
Default implementations of the Web Services Security service provider programming interfaces
Configure the collection certificate store for the consumer binding on the application level
Configure token consumers using JAX-RPC to protect message authenticity at the application level
Configure programmatic logins for JAAS
Secure messages using JAX-RPC at the request and response consumers

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URI	Local name	Description
A namespace URI is not applicable.	Specify http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3 as the local name.	Name of an X.509 certificate token
A namespace URI is not applicable.	Specify http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509PKIPathv1 as the local name.	Name of the X.509 certificates in a PKI path
A namespace URI is not applicable.	Specify http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#PKCS7 as the local name.	Specifies a list of X509 certificates and certificate revocation lists (CRL) in a PKCS#7
Specify http://www.ibm.com/websphere/appserver/tokentype/5.0.2 as the URI value.	Specify LTPA as the local name.	Specifies a binary security token that contains an embedded Lightweight Third Party Authentication (LTPA) token.