Operating Systems: i5/OS
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Configure the server to handle LTPA token authentication information
Lightweight Third-Party Authentication (LTPA) is a type of authentication
mechanism in WebSphere Application Server security that defines a particular
token format. The purpose of the LTPA token authentication is to flow the
LTPA token from the first Web service, which authenticated the originating
client, to the downstream Web service. You can configure the server for LTPA
token authentication.
Overview
There is an important distinction between
V5.x and V6.0.x and later applications. The information
in this article supports V5.x applications only that are used
with WebSphere Application Server V6.0.x and later. The information
does not apply to V6.0.x and later applications.
This
task is used to configure LTPA. Do not attempt to configure LTPA from a pure
client. After the downstream Web service receives the LTPA token, it validates
the token to verify that the token has not been modified and has not expired.
For validation to be successful, the LTPA keys that are used by both the sending
and receiving servers must be the same.
Complete the following steps
to specify that LTPA is the authentication method. The authentication method
indicated in these steps must match the authentication method that is specified
for the client.
Procedure
- Launch an assembly tool. For more information on the
assembly tools, see Assembly tools.
- Switch to the J2EE perspective.
Click Window > Open Perspective > J2EE.
- Click EJB Projects > application_name > ejbModule
> META-INF.
- Right-click the webservices.xml file, and click Open
with > Web services editor.
- Click the Extensions tab, which is located at the bottom of the
Web services editor within the assembly tool.
- Expand the Request receiver service configuration details >
Login configuration section. You can select from the following
options:
- BasicAuth
- Signature
- ID assertion
- LTPA
- Select LTPA to authenticate the client using the LTPA token
received from the request.
What to do next
After you specify the authentication method, specify the
information that the server must validate. See Configuring the server to validate LTPA token authentication information for more information.
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Related concepts
Lightweight Third Party Authentication
Related tasks
Configuring the server to validate LTPA token authentication information
Configuring the server security bindings using an assembly tool
Configuring the server security bindings using the administrative console
Configuring the client for LTPA token authentication: specifying LTPA
token authentication
Configuring the client for LTPA token authentication: collecting the
authentication method information
Securing Web services for version 5.x applications using a pluggable
token
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