Objects of this class represent a policy for Encrypting parts of a SOAP Message. The
Message Parts to be encrypted and the Data Encryption Algorithm to be used are
captured as FeatureBindings of this Policy. The exact Key to be used is to be represented
as a distinct KeyBinding for this policy instance.
Allowed KeyBindings for an EncryptionPolicy include the following :
AuthenticationTokenPolicy.X509CertificateBinding
AuthenticationTokenPolicy.SAMLAssertionBinding
SymmetricKeyBinding
Inner Class :public static class FeatureBinding extends WSSPolicy