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Specify Windows stream security settings of the custom binding.

<windowsStreamSecurity protectionLevel="None/Sign/EncryptAndSign"/>

The following sections describe attributes, child elements, and parent elements.


Attribute Description


Defines message-level security. Signing messages mitigates the risk of a third party tampering with the message while it is being transferred. Encryption provides data-level privacy during transport. Valid values include the following:

  • None: No protection.

  • Sign: Messages are signed.

  • EncryptAndSign: Messages are signed and encrypted.

The default is EncryptAndSign.

This attribute is of type ProtectionLevel.

Child Elements


Parent Elements

Element Description


Defines all binding capabilities of the custom binding.

Transports that use a stream-oriented protocol such as TCP and named pipes support stream-based transport upgrades. Specifically, WCF provides security upgrades. The configuration of this transport security is encapsulated by this configuration element as well as by <sslStreamSecurity>, which can be configured and added to a custom binding