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A Distributed Denial of Service (DDoS) attack can inflict a grave toll on revenues. Developing countries like Nepal where the E-government system services are in infancy state; if attack like DDoS occurs the probability of dying out of system itself is more. Citizens may be reluctant in using E-services. To handle such challenges, this paper compares various security architectures for E-government...
Even though nothing is ever that simple/clear cut in software engineering, one would argue that by contrast with source code, which represents the detailed functional attributes of a software product, the architecture of a software product represents its non functional attributes. The architecture of a software product determines such attributes as its response time, throughput, reliability, security,...
Although many aids such as architectural styles and patterns are now available for software architects, making optimal design decisions on appropriate architectural structures still requires significant creativity. In an effort to introduce a more direct link between an architectural decision and its consequences, a finer grained architectural concept called a tactic has emerged. Since its introduction,...
The increasing complexity of information and telecommunications systems and networks is reaching a level beyond human ability, mainly from the security assessment viewpoint. Methodologies currently proposed for managing and assuring security requirements fall short of industrial and societal expectations. The statistics about vulnerabilities and attacks show that the security, reliability and availability...
This position paper proposes a research agenda for the field of security testing. It gives a critical account of the state of the art as seen by a practitioner and identifies questions that research failed to answer so far, or failed to answer in such a way that it would have had an impact in the real world. Three categories of research problems are proposed: theory of vulnerabilities, theory of security...
The increased availability of mobile broadband connec- tions enables the expansion of software downloads to mobile devices. This leads to greater number of available services and a better utilisation of the computational power of mobile devices. The downside of this increased software availability is an increase in the possible attack vectors. One scenario is the misuse of resources, for example,...
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...
In recent years, organizations have been shifting focus to their core business competencies, and reducing total cost of ownership (TCO) associated with training and management of their IT infrastructure. In the same motif, organizations are establishing security and survivability frameworks as an integral part of their business strategy so as to provide an acceptable quality-of-service for their clients...
Internet Relay Chat (IRC) is a critical application in military networks for maintaining situational awareness and conducting battle management at all echelons. But these networks are often subject to frequent disconnections, limited bandwidth, and long delays, especially when using satellite services and field radios. Such conditions are inhospitable to TCP, and thus the standard IRC protocol, which...
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