Intelligent state-based XML firewall

Service-oriented architecture (SOA) is an architectural style of software systems, in which a system is composed of isolated or independent services. XML has become the most common way for information exchange and data representation in SOA. Electronic bill presentment and payment (EBPP) is one of the most critical SOA applications for which security a major concern. State-based XML firewall systems have been introduced as one of the major means for SOA security. The work of this paper introduces a new learning mechanism to extend State-based XML Firewall to improve security level. The proposed extension is justified using a case study.