在SOAP Header请求中添加元素以进行身份验证

I need to incorporate an authentication header (i.e. as a part of SOAP header request) in my new web service. That authentication header will verify the userId and password details. I have to verify the content of request header details for authentication in my Web Service. If authenticated, then the SOAP body of the request will be processed, else Invalid Authentication message will be send back by the Web Service to the client application invoking the service.I need to incorporate an authentication header