WAS v8.5 > Reference > Sets

Callback handler configuration settings for JAX-RPC

Use this page to specify how to acquire the security token that is inserted in the Web Services Security header for JAX-RPC within the SOAP message. The token acquisition is a pluggable framework that leverages the JAAS javax.security.auth.callback.CallbackHandler interface for acquiring the security token.

Before we specify values for the Keystore and Key properties on this page, you must understand the keystore/alias information that you provide for the generator, and the keystore/alias information that you provide for the consumer are used for different purposes.

The main difference applies to the alias for an X.509 callback handler: gotcha

Generator

When used in association with an encryption generator, the alias supplied for the generator is used to retrieve the public key to encrypt the message. A password is not required. The alias that is entered on a callback handler associated with an encryption generator must be accessible without a password. This means the alias must not have private key information associated with it in the keystore. When used in association with a signature generator, the alias supplied for the generator is used retrieve the private key to sign the message. A password is required.

To view this dmgr console page for the callback handler on the server level...

1. Click Servers > Server Types > WebSphere application servers > server_name .

2. Under Security, click JAX-WS and JAX-RPC security runtime.

   In a mixed node cell with a server using Websphere Application Server version 6.1 or earlier, click Web services: Default bindings for Web Services Security.

3. Under JAX-RPC Default generator bindings, click Token generators > token_generator_name.

4. Under Additional properties, click Callback handler.

To view this dmgr console page for the callback handler on the application level ...

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

2. Under Modules, click Manage ModulesURI_name.

3. Under Web Services Security properties, we can access the callback handler information for the following bindings:

   • For the Request generator (sender) binding, click Web services: Client security bindings. Under Request generator (sender) binding, click Edit custom. Under Additional properties, click Token generator. Click New to create a new token generator configuration or click the name of an existing configuration to modify its settings. Under Additional properties, click Callback handler.

   • For the Response generator (sender) binding, click Web services: Server security bindings. Under Response generator (sender) binding, click Edit custom. Under Additional properties, click Token generator. Click New to create a new token generator configuration or click the name of an existing configuration to modify its settings. Under Additional properties, click Callback handler.

Callback handler class name

Name of the callback handler implementation class used to plug in a security token framework.

The specified callback handler class must implement the javax.security.auth.callback.CallbackHandler class. The implementation of the JAAS javax.security.auth.callback.CallbackHandler interface must provide a constructor using the following syntax:

MyCallbackHandler(String username, char[] password, 
    java.util.Map properties)

Where:

username

User name that is passed into the configuration.

password

Password that is passed into the configuration.

properties

Other configuration properties that are passed into the configuration.

The application server provides the following default callback handler implementations:

com.ibm.wsspi.wssecurity.auth.callback.GUIPromptCallbackHandler

This callback handler uses a login prompt to gather user name and password information. However, if we specify the user name and password on this panel, a prompt is not displayed and the application server returns the user name and password to the token generator if it is specified on this panel. Use this implementation for a Java EE application client only.

com.ibm.wsspi.wssecurity.auth.callback.NonPromptCallbackHandler

This callback handler does not issue a prompt and returns the user name and password if it is specified on this panel. We can use this callback handler when the web service is acting as a client.

com.ibm.wsspi.wssecurity.auth.callback.StdinPromptCallbackHandler

This callback handler uses a standard-in prompt to gather the user name and password. However, if the user name and password is specified on this panel, the application server does not issue a prompt, but returns the user name and password to the token generator. Use this implementation for a Java EE application client only.

com.ibm.wsspi.wssecurity.auth.callback.StdinPromptCallbackHandler

This callback handler uses a standard-in prompt to gather the user name and password. However, if the user name and password is specified on this panel, the application server does not issue a prompt, but returns the user name and password to the token generator. Use this implementation for a Java EE application client only.

com.ibm.wsspi.wssecurity.auth.callback.LTPATokenCallbackHandler

This callback handler is used to obtain the Lightweight Third Party Authentication (LTPA) security token from the RunAs invocation Subject. This token is inserted in the Web Services Security header within the SOAP message as a binary security token. However, if the user name and password are specified on this panel, the application server authenticates the user name and password to obtain the LTPA security token rather than obtaining it from the RunAs Subject. Use this callback handler only when the web service is acting as a client on the application server. It is recommended that we do not use this callback handler on a Java EE application client.

com.ibm.wsspi.wssecurity.auth.callback.X509CallbackHandler

This callback handler is used to create the X.509 certificate that is inserted in the Web Services Security header within the SOAP message as a binary security token. A keystore and a key definition is required for this callback handler.

com.ibm.wsspi.wssecurity.auth.callback.PKCS7CallbackHandler

This callback handler is used to create X.509 certificates encoded with the PKCS#7 format. The certificate is inserted in the Web Services Security header in the SOAP message as a binary security token. A keystore is required for this callback handler. Specify a certificate revocation list (CRL) in the collection certificate store. The CRL is encoded with the X.509 certificate in the PKCS#7 format.

com.ibm.wsspi.wssecurity.auth.callback.PkiPathCallbackHandler

This callback handler is used to create X.509 certificates encoded with the PkiPath format. The certificate is inserted in the Web Services Security header within the SOAP message as a binary security token. A keystore is required for this callback handler. A CRL is not supported by the callback handler; therefore, the collection certificate store is not required or used.

The callback handler implementation obtains the required security token and passes it to the token generator. The token generator inserts the security token in the Web Services Security header within the SOAP message. Also, the token generator is the plug-in point for the pluggable security token framework. Service providers can provide their own implementation, but the implementation must use the com.ibm.websphere.wssecurity.wssapi.token.SecurityToken interface. The Java Authentication and Authorization Service (JAAS) Login Module implementation is used to create the security token on the generator side and to validate (authenticate) the security token on the consumer side, respectively.

Use identity assertion

Select this option if we have identity assertion defined in the IBM extended deployment descriptor.

This option indicates that only the identity of the initial sender is required and inserted into the Web Services Security header within the SOAP message. For example, the application server sends only the user name of the original caller for a Username TokenGenerator. For an X.509 token generator, the application server sends the original signer certification only.

Use RunAs identity

Select this option if we have identity assertion defined in the IBM extended deployment descriptor and to use the Run As identity instead of the initial caller identity for identity assertion for a downstream call.

This option is valid only if we have Username TokenGenerator configured as a token generator.

Basic authentication user ID

User name that is passed to the constructors of the callback handler implementation.

The basic authentication user name and password are used if you select one of the following default callback handler implementations provided by this product:

• com.ibm.wsspi.wssecurity.auth.callback.GUIPromptCallbackHandler
• com.ibm.wsspi.wssecurity.auth.callback.LTPATokenCallbackHandler
• com.ibm.wsspi.wssecurity.auth.callback.NonPromptCallbackHandler
• com.ibm.wsspi.wssecurity.auth.callback.StdinPromptCallbackHandler

These implementations are described in detail under the Callback handler class name field description in this article.

Basic authentication password

Password that is passed to the constructor of the callback handler.

The keystore and its related configuration are used if you select one of the following default callback handler implementations provided by this product:

com.ibm.wsspi.wssecurity.auth.callback.PKCS7CallbackHandler

The keystore is used to build the X.509 certificate with the certificate path.

com.ibm.wsspi.wssecurity.auth.callback.PkiPathCallbackHandler

The keystore is used to build the X.509 certificate with the certificate path.

com.ibm.wsspi.wssecurity.auth.callback.X509CallbackHandler

The keystore is used to retrieve the X.509 certificate.

Keystore

Select None if no keystore is needed for this configuration.

Select Predefined keystore to choose predefined keystores with keystore configuration name.

Select User-defined keystore to use user-defined keystores.

The following information needs to be specified:

Key store configuration name

Name of the key store configuration defined in the keystore settings in secure communications.

Key store password

Password used to access the keystore file.

Key store path

Location of the keystore file.

Use ${USER_INSTALL_ROOT} in the path name because this variable expands to the product path on your machine. To change the path used by this variable, click Environment > WebSphere variables and click USER_INSTALL_ROOT.

Key store type

Type of keystore file format

Choose one of the following values for this field:

JKS

Use this option if the keystore uses the Java Keystore (JKS) format.

JCEKS

Use this option if the Java Cryptography Extension is configured in the SDK. The default IBM JCE is configured in the application server. This option provides stronger protection for stored private keys using Triple DES encryption.

PKCS11KS (PKCS11)

Use this option if the keystore file uses the PKCS#11 file format. Keystore files that use this format might contain Rivest Shamir Adleman (RSA) keys on cryptographic hardware or might encrypt keys that use cryptographic hardware to ensure protection.

PKCS12KS (PKCS12)

Use this option if the keystore file uses the PKCS#12 file format.

Related

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

Reference:

Token generator page
Token generator configuration settings
Key information settings

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