The response sender defines the security requirements of the SOAP response message. The security handler acts on the security constraints that are defined for the response in the IBM extension deployment descriptors.
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. The IBM extension deployment descriptors are located in the ibm-webservices-ext.xmi file and the bindings, located in the ibm-webservices-bnd.xmi file. The security handler signs, encrypts, or generates the time stamp for the SOAP response message before the response is send to the caller.
The security constraints that apply to the SOAP response message must match
the security requirements defined in the response receiver. Otherwise, the
response is rejected by the response receiver (caller).