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Protocols related to message handling systems (and application layer communication protocols in general) will continue to enjoy rapid development in the near future. Demonstrations of data communication between different vendors' application systems have become commonplace. A tidal wave of OSI application products and services appears to be cresting now, with the promise of a flood throughout the 1990's. The research papers in this book look at various aspects of this rush of development. The role of security, be it for authentication, validation, provision of privacy, or for the preservation of integrity, is a major focus of interest. Other sections present recent work on implementations and experiences with the operation of MHS and Directory networks, with extensions into new application areas.
Security is the science and technology of secure communications and resource protection from security violation such as unauthorized access and modification. Putting proper security in place gives us many advantages. It lets us exchange confidential information and keep it confidential. We can be sure that a piece of information received has not been changed. Nobody can deny sending or receiving a piece of information. We can control which piece of information can be accessed, and by whom. We can know when a piece of information was accessed, and by whom. Networks and databases are guarded against unauthorized access. We have seen the rapid development of the Internet and also increasing security requirements in information networks, databases, systems, and other information resources. This comprehensive book responds to increasing security needs in the marketplace, and covers networking security and standards. There are three types of readers who are interested in security: non-technical readers, general technical readers who do not implement security, and technical readers who actually implement security. This book serves all three by providing a comprehensive explanation of fundamental issues of networking security, concept and principle of security standards, and a description of some emerging security technologies. The approach is to answer the following questions: 1. What are common security problems and how can we address them? 2. What are the algorithms, standards, and technologies that can solve common security problems? 3.
I am pleased to introduce this publication based on one of the deliverables of the NO PROBLEMS project. This is one of the projects co-financed by the European Commission in the framework of the TEN-Telecom programme. Electronic commerce is high up on the agenda of the European Commission and is one of the priorities of the TEN-Telecom programme. Electronic commerce requires a reliable and secure communications environment. But in order to attract the large number of Europe's SMEs and the European citizens, electronic commerce support services must be widely accessible at low cost. The NO PROBLEMS project has addressed these challenging requirements by combining two complementary technologies: X.400 messaging for the reliability and the security framework, Internet for the low cost accessibility. NO PROBLEMS is in many regards illustrative of the TEN-Telecom objectives: it combines available technology to provide innovative services to Europe's SMEs. This publication provides an in-depth insight into some of the key technologies expected to playa major role in the support of electronic commerce. Robert Verrue Director General DG XIII European Commission This publication is based on documents of the NO PROBLEMS project, which has been founded by the European Commission DG XIII. The project partners have been INFONOVA GmbH and DATAKOM Austria from Austria as well as ITK Telekommunikation from Germany and ATLANTIDE from France.
Public Data Networks provide a comprehensive survey of PDNs, covering all major countries. PDNs allow efficient and cost-effective telecommunication between a terminal and computer, or between computers, regardless of who owns the data terminal. The authors discuss the current state of, and forthcoming developments in, data communications using public telecommunication facilities. Apart from the classical telecommunication networks (telegraph and telephone), public data networks provide the majority of data communication services worldwide. The range of data services and user facilities has gradually expanded, the quality of services improved, and new services have appeared (e.g. datafax, teletex, videotex, message handling and teleconferencing). The authors concentrate on PDN principles, taking account of the latest CCITT recommendations and ISO standards. Appendices and references provide detailed information for those working on PDNs at research, design an implementation level. Network digitalization and integration of networks and services have aided progress towards the integrated services digital network (ISDN). The ISDN uses advanced transmission and switching techniques to enhance the telecommunication services provided to its users. An ISDN has much in common with the PDN as far as architecture, methods of network management and functions are concerned, but there are distinct differences in the methods of access and signalling. The authors have extensive experience in data communication networking. Dr. Kubin is vice-chairman of Study Group IX of the International Telegraph and Telephone Consultative Committee (CCITT); Dr. Puzman is the Czechoslovak representative at Technical Commission 6 (TC-6) of the International Federation for Information Processing (IFIP). Public Data Networks is essential reading for researchers and designers of PDNs, in universities and industry, and provides important reference material for telecommunications and computer science students.
Learn to leverage, manage and protect your messaging infrastructure, and deliver information, products, and services to anyone, anytime, anywhere. Get the expertise you need in Electronic Messaging. Electronic Messaging shows you how to build from the ground up and then get the most out of a messaging infrastructure that will carry your enterprise into the next wave of collaborative computing, as well as into the next century. Packed with clear explanations, no-nonsense solutions and real-world case studies, Electronic Messaging goes far beyond basic terms, concepts, techniques, architectures, and products. While explaining fundamentals, it also provides all the advanced know-how you need to build, maintain and protect a first-class messaging environment. In the final analysis, Electronic Messaging gives you all the information and tools you need to position your enterprise for success in tomorrow's networked world - and to do so efficiently and economically.
The subject of this book is Command Control Communication and Information 3 (C I) which is the management infrastructure for any large or complex dynamic resource systems. Here command means the determination of what to do, and control means the ongoing managementofthe execution ofa command. 3 Decision making is the essence of C I which is accomplished through a phased implementation of a set of facilities, communications, personnel, equipment and procedures for monitoring, forecasting, planning, directing, allocating resources, and generating options to achieve specific and general objectives. 3 The C I system that is in question here is for a strategic military command including its subordinate commands. Although the design methodology that will be expounded in the book is for a military system, it can, to a large extent, apply also to tactical military as well as to civilian management information systems (MIS). 3 A C I system is a decision making network that reflects a hierarchical organization 3 of C I nodes. Each node is responsible for the management of some portion ofthe available resources, where the higher level nodes are responsible for a 3 correspondingly greater portion of the resources. Within a C I system both command and control decision making occur at every level of the hierarchy. Command decisions at one level determine how to satisfy the management decisions at a higher level.