Base:
method
EncryptHeader
System.ServiceModel.Security.WSSecurityOneDotZeroSendSecurityHeader.EncryptHeader(System.ServiceModel.Channels.MessageHeader, System.Security.Cryptography.SymmetricAlgorithm, System.IdentityModel.Tokens.SecurityKeyIdentifier, System.ServiceModel.Channels.MessageVersion, System.String, System.IO.MemoryStream)