Specifies a custom authentication provider binding for a parent webservice-endpoint or port-info element in one or both of these ways:
By binding to a specific provider
By specifying the message security requirements enforced by the provider
webservice-endpoint, port-info (sun-web.xml, sun-ejb-jar.xml, sun-application-client.xml)
The following table describes subelements for the message-security-binding element.
Table A–74 message-security-binding Subelements| Element | Required | Description | 
|---|---|---|
| zero or more | Specifies message security requirements. | 
The following table describes attributes for the message-security-binding element.
Table A–75 message-security-binding Attributes| Attribute | Default | Description | 
|---|---|---|
| none | Specifies the message layer at which authentication is performed. The value must be SOAP. | |
| none | (optional) Specifies the authentication provider used to satisfy application-specific message security requirements. If this attribute is not specified, a default provider is used, if it is defined for the message layer. if no default provider is defined, authentication requirements defined in the message-security-binding are not enforced. |