You can specify which method the server uses to encrypt the response
message.
Before you begin
Important: There is an important distinction
between Version 5.x and Version 6.0.x and later applications.
The information in this article supports Version 5.x applications only
that are used with WebSphere Application Server Version 6.0.x and later.
The information does not apply to Version 6.0.x and later applications.
Prior
to completing these steps, read either of the following topics to become familiar
with the
Extensions tab and the
Binding configurations tab in
the Web services editor within an assembly tool:
These two tabs are used to configure the Web services security
extensions and Web services security bindings, respectively.
About this task
Complete the following steps to specify which method the server
uses to encrypt the response message:
Procedure
- Launch an assembly tool. For more information on the
assembly tools, see Assembly tools.
- Switch to the Java 2 Platform, Enterprise Edition (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 Binding Configurations tab, which is located at the bottom
of the Web Services Editor within the assembly tool.
- Expand Response sender binding configuration details > Encryption
information.
- Click Edit to view the encryption information. The
following table describes the purpose of this information. Some of these definitions
are based on the XML-Encryption specification, which is located at the following
Web address: http://www.w3.org/TR/xmlenc-core
- Encryption name
- Refers to the name of the encryption information entry.
- Data encryption method algorithm
- Encrypts and decrypts data in fixed size, multiple octet blocks. The algorithm
selected for the server response sender configuration must match the algorithm
selected in the client response receiver configuration.
- Key encryption method algorithm
- Represents public key encryption algorithms that are specified for encrypting
and decrypting keys. The algorithm selected for the server response sender
configuration must match the algorithm selected in the client response receiver
configuration.
- Encryption key name
- Represents a Subject from a public key certificate typically distinguished
name (DN) that is found by the encryption key locator and used by the key
encryption method algorithm to encrypt the private key. The private key is
used to encrypt the data.
The key name chosen in the server response sender
encryption information must be the public key of the key configured in the
client response receiver encryption information. Encryption by the response
sender must be done using the public key and decryption must be done by the
response receiver using the associated private key (the personal certificate
of the response receiver).
- Encryption key locator
- The encryption key locator represents a reference to a key locator implementation
class that finds the correct key store where the alias and the certificate
exist. For more information, see the tasks for configuring key locators.
- Select Show only FIPS Compliant Algorithms if
you only want the FIPS compliant algorithms to be shown in the Data Encryption
method algorithm and Key Encryption method algorithm drop-down lists. Use
this option if you expect this application to be run on a WebSphere Application
Server that has set the Use the United States Federal Information Processing
Standard (FIPS) algorithms option in the SSL certificate and key management
panel of the administrative console for WebSphere Application Server.
Results
The encryption key name chosen must refer to a public key of the
response receiver. For the encryption key name, use the Subject of the public
key certificate, typically a Distinguished Name (DN). The name chosen is used
by the default key locator to find the key. If you write a custom key locator
, the encryption key name might be anything that is used by the key locator
to find the correct encryption key (a public key). The encryption key locator
references the implementation class that finds the correct key store where
the alias and certificate exist.
What to do next
You must specify which parts of the response message to encrypt.
See the task for configuring the server for response encryption if you have
not previously specified this information.