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Web Services are at the heart of many Internet-based e-business systems. Security issues in web services are critical for the continuity of the provided services. Solutions such as Role-Based Access Control and Trust-Based Access Control were proposed to address threats to security in single Web Service scenarios. These solutions do not fully provide the required security level in situations related...
The Securities Technologies (ST) Workshop for WETICE 2008 accepted two papers as full papers for this year's workshop. The committee received a total of eight papers for the ST workshop. The two papers did cover quite interesting topics and provided some good discussion.
Security policy validation based on conformance testing is a promising approach, but it lacks both of a fault model and of better test selection procedures. Penetration testing approaches rely on a fault model based on the exploitation of sequences of vulnerabilities. This document proposes a method to generate test purposes to validate the conformance of a system to a security policy using a fault...
The UNICORE grid system provides a seamless, secure and intuitive access to distributed grid resources. In recent years, UNICORE 5 is used as a well-tested grid middleware system in production grids (e.g. DEISA, D-Grid) and at many supercomputer centers world-wide. Beyond this production usage, UNICORE serves as a solid basis in many European and International research projects and business scenarios...
Collecting data on user activities is one of the fundamental middleware services in Web-enabled systems. The collected data is analyzed and used by various high-level services, like user profiling, accounting, security auditing, and system health monitoring. In this paper, we present architecture and performance evaluation of usage tracking components for service-oriented middleware systems. Presented...
This is an introduction to the proceedings of the MWS 2007 workshop held at EDOC 2007. It first explains the motivation for and background of the workshop. Then, it contains a short description of the keynote, each long and short peer-reviewed paper, and the discussion session "impact of various execution environments on middleware for web services". After the closing statements, MWS 2007...
Information privacy is usually concerned with the confidentiality of personally identifiable information (PII), such as electronic medical records. Nowadays, Web services are used to support different applications which may contain PII, such as healthcare applications. Thus, the information access control mechanism for Web services must be embedded into privacy-enhancing technologies. Further as application...
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