Kees Leune

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Service Oriented Computing (SOC) demands an infrastructure that seamlessly integrates all connection points between business processes, services and associated support resources. Parts of the infrastructure may be supported by existing standards such as XACML and BPEL. However, an integral and sound framework that takes into account all these issues and(More)
Enterprises are rapidly extending their relatively stable and internally-oriented business processes and applications with loosely-coupled enterprise software services in order to support highly dynamic, cross-organizational business processes. These services are no longer solely based on internal enterprise systems, but often implemented , deployed and(More)
Service-Oriented Computing is a new paradigm for the specification and deployment of distributed services in highly dynamic environments. The very nature of the context in which service-oriented computing thrives imposes unique security requirements. Large scale interconnection of systems and services, rapidly changing service compositions and ad-hoc(More)
IT Security agents are often distributed geographically. Many team building techniques focus on groups who can gather physically and can do offsite activities together. IT Security collectives can improve their ability to work together if they engage in team building activities which can be done virtually. This paper describes the change in leader opinions(More)
For a government cyber deterrence strategy to be effective, it must have network penetration tools, as well as, tools for distributed denial of service (DDOS), parallel scanning, reconnaissance, surveillance, and other capabilities. Most importantly, it must be able to assess cyber-attack attribution rapidly, and with certainty. This paper furthers the(More)
In this paper, we address the question whether security of service-oriented computing in general, and web services technology in particular, is adequately equipped for any interaction patterns that are not request-response, such as event-driven interactions. Taking into account the distributed nature of access control, we argue that service-oriented(More)
Service-oriented computing (SOC) is the computing paradigm that utilizes services as fundamental elements for developing applications. In order to realize the vision of services being utilized as fundamental elements of business collaboration, security is a critical issue that must be addressed. As SOC adopts messages as the binding factor for loosely(More)
Service-oriented computing (SOC) is the computing paradigm that utilizes services as fundamental elements for developing applications. In order to realize the vision of services being utilized as fundamental elements of business collaboration, security is a critical issue that must be addressed. As SOC adopts messages as the binding factor for loosely(More)