Sun Java System Application Server Platform Edition 8.1 2005Q2 Update 2 Administration Guide

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#### About Message Protection Policies

Message protection policies are defined for request message processing and response message processing and are expressed in terms of requirements for source and/or recipient authentication. A source authentication policy represents a requirement that the identity of the entity that sent a message or that defined the content of a message be established in the message such that it can be authenticated by the message receiver. A recipient authentication policy represents a requirement that the message be sent such that the identity of the entities that can receive the message can be established by the message sender. The providers apply specific message security mechanisms to cause the message protection policies to be realized in the context of SOAP web services messages.

Request and response message protection policies are defined when a provider is configured into a container. Application-specific message protection policies (at the granularity of the web service port or operation) may also be configured within the Sun-specific deployment descriptors of the application or application client. In any case, where message protection policies are defined, the request and response message protection policies of the client must match (be equivalent to) the request and response message protection policies of the server. For more information on defining application-specific message protection policies, refer to the Securing Applications chapter of the Developers’ Guide.

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