SIGMA: security for distributed object interoperability between trusted and untrusted systems

The SIGMA project is researching the integration and interoperation of security technologies into distributed computing environments based on CORBA, the Common Object Request Broker Architecture. The architectural results described in the paper are focused on security technologies that allow controlled, selective exchange of object oriented services among separate distributed systems that differ in security policy, mechanisms, and assurance. A central goal for our work in this area is to identify and prototype techniques that enable CORBA based application interoperation between trusted and untrusted distributed systems