Scientific Online Publishing (SOP)
Service-Oriented Architecture (SOA) is an architectural paradigm for developing distributed systems. One of the major challenges in the designing of SOA is developing its security requirements. SOA security is an overarching concern because it affects discovery and interaction of services and applications in an SOA environment. In recent years, a lot of solutions have been implemented such as Web Service Security (WS-Security), WS trust and Web Service Security Policy (WS-Security Policy) standards. These standards are not sufficient for the promising enterprise system security.