Gets or sets a value that indicates whether keys can be derived from the original proof keys.
Assembly: System.ServiceModel (in System.ServiceModel.dll)
WCF needs to derive keys from the token's key when performing signature and encryption using the token.
Derived keys originate in Secure Conversations where there is a shared security context so that the same security can be applied across all messages in the conversation. A security context token involves a shared secret, which is used for message signing and encryption. The shared secret is used to create derived keys. To maintain a high level of security through a lengthy conversation, new derived keys can be created periodically.