SOAP message security options
<sp:Wss10 xmlns:sp="http://schemas.xmlsoap.org/ws/2005/07/securitypolicy">
<sp:MustSupportRefKeyIdentifier />
<sp:MustSupportRefIssuerSerial />
MustSupportRefKeyIdentifier means that initiator and recipient are able to generate and process key identifier reference.
MustSupportRefIssuerSerial means that initiator and recipient are able to generate and process issuer and token serial reference.