Operating the net: overview The Net consists of thousands of thousands of governmental and private networks linked together. No legal authority determines how and where networks can be connected together, this is something the managers of networks have to agree about. So there is no way of ever gaining ultimate control of the Internet. Although each of these networks is operated and controlled by an organization, no single organization operates and controls the Net. Instead of a central authority governing the Net, several bodies assure the operability of the Net by developing and setting technical specifications for the Net and by the control of the technical key functions of the Net as the coordination of the domain name system and the allocation of IP numbers. Originally, the Net was a research project funded and maintained by the US Government and developed in collaboration by scientists and engineers. As the standards developed for ensuring operability ensued from technical functionality, technical coordination gradually grew out of necessity and was restricted to a minimum and performed by volunteers. Later, in the 1980s, those occupied with the development of technical specifications organized themselves under the umbrella of the Internet Society in virtual organizations as the Internet Engineering Task Force, which were neither officially established nor being based on other structures than mailing lists and commitment, but nonetheless still serve as task forces for the development of standards ensuring the interoperability on the Net. Since the late 80s and the early 90s, with the enormous growth of the Net - which was promoted by the invention of Since the year 2000, a new model for technical coordination has been emerging: Formerly performed by several bodies, technical coordination is transferred to a single non-governmental organization: the Internet Coordination of Assigned Numbers and Names. |
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Cryptography's Terms and background "All nature is merely a cipher and a secret writing." Blaise de Vigenère In the (dis-)information age getting information but at the same time excluding others from it is part of a power-game (keeping the other uneducated). The reason for it eventually has found an argument called security. Compared to the frequency of its presence in articles, the news and political speeches security seems to be one of the most popular words of the 90's. It must be a long time ago when that word was only used for and by the military and the police. Today one can find it as part of every political issue. Even development assistance and nutrition programs consider it part of its work. The so-called but also real need for information security is widespread and concerning everybody, whether someone uses information technology or not. In any case information about individuals is moving globally; mostly sensitive information like about bank records, insurance and medical data, credit card transactions, and much much more. Any kind of personal or business communication, including telephone conversations, fax messages, and of course e-mail is concerned. Not to forget further financial transactions and business information. Almost every aspect of modern life is affected. We want to communicate with everybody - but do not want anybody to know. Whereas the market already depends on the electronic flow of information and the digital tools get faster and more sophisticated all the time, the rise of privacy and security concerns have to be stated as well. With the increase of digital communication its vulnerability is increasing just as fast. And there exist two (or three) elements competing and giving the term digital security a rather drastic bitter taste: this is on the one hand the growing possibility for criminals to use modern technology not only to hide their source and work secretly but also to manipulate financial and other transfers. On the other hand there are the governments of many states telling the population that they need access to any kind of data to keep control against those criminals. And finally there are those people, living between enlightening security gaps and at the same time harming other private people's actions with their work: computer hackers. While the potential of global information is regarded as endless, it is those elements that reduce it. There is no definite solution, but at least some tools have been developed to improve the situation: cryptography, the freedom to encode those data that one does not want to be known by everybody, and give a possibility to decode them to those who shall know the data. During the last 80 years cryptography has changed from a mere political into a private, economic but still political tool: at the same time it was necessary to improve the tools, eventually based on mathematics. Hence generally cryptography is regarded as something very complicated. And in many ways this is true as the modern ways of enciphering are all about mathematics. "Crypto is not mathematics, but crypto can be highly mathematical, crypto can use mathematics, but good crypto can be done without a great reliance on complex mathematics." (W.T. Shaw) For an introduction into cryptography and the mathematical tasks see: |
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Another Question of Security Even with the best techniques it is impossible to invent a cryptographic system that is absolutely safe/unbreakable. To decipher a text means to go through many, sometimes nearly - but never really - endless attempts. For the computers of today it might take hundreds of years or even more to go through all possibilities of codes, but still, finally the code stays breakable. The much faster quantum computers will proof that one day. Therefore the decision to elect a certain method of enciphering finally is a matter of trust. For the average user of computers it is rather difficult to understand or even realize the dangers and/or the technological background of electronic transmission of data. For the majority thinking about one's own necessities for encryption first of all means to trust others, the specialists, to rely on the information they provide. The websites explaining the problems behind (and also the articles and books concerning the topic) are written by experts of course as well, very often in their typical scientific language, merely understandable for laymen. The introductions and other superficial elements of those articles can be understood, whereas the real background appears as untouchable spheres of knowledge. The fact that dangers are hard to see through and the need for security measures appears as something most people know from media reports, leads directly to the problem of an underdeveloped democracy in the field of cryptography. Obviously the connection between cryptography and democracy is rather invisible for many people. Those mentioned media reports often specialize in talking about the work computer hackers do (sometimes being presented as criminals, sometimes as heroes) and the danger to lose control over the money drawn away from one's bank account, if someone steals the credit card number or other important financial data. The term "security", surely connected to those issues, is a completely different one from the one that is connected to privacy. It is especially the latter that touches the main elements of democracy. for the question of security see: |
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Steganography Ciphers as well as codes are transmitted openly. Everyone can see that they exist. Not so with steganograms. Steganography is the art and science of communicating in a way which hides the existence of the secret part in that communication. During the Italian Renaissance and the time of the Elizabethan Age in England cryptography was very popular, for political reasons as well as for amusements (see John Dee). In literature steganography played an important role. Many steganographs of that period have only been deciphered recently like some of the Shakespearean sonnets, which now seem to proof that the actor William Shakespeare was not the author of the famous poems and dramas, but that the latter' name was, and Francis Bacon, or even Francis Tudor, as some ciphers and other sources talk of him as Queen Elisabeth I.'s secret son. for further details see: One kind of steganogram is digital watermarking: Watermarks protect digital images, videos, but also audio and multimedia products. They are made out of digital signals, put into other digital signals. They try to be invisible on first sight and should be nearly impossible to remove. The process of producing watermarks is to overlay some sort of identifying image over the original image (non-digital watermarks, like on money can be seen by holding the paper against light). Copying the image destroys the watermark, which cannot be copied. Any alteration of the original destroys the watermark, too. Watermarking is one of the typical inventions of cryptography to assist the biggest content owners, but advertised as something necessary and helpful for everybody. Who in fact gets any advantage out of watermarking? The private user most of the time will not really need it except for small entities of pictures maybe. But the big enterprises do. There is a tendency to watermark more and more information in the Internet, which until now was considered as free and as a cheap method to receive information. Watermarking could stop this democratic development. for further information see: |
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The Privatization of Censorship According to a still widely held conviction, the global data networks constitute the long desired arena for uncensorable expression. This much is true: Because of the Net it has become increasingly difficult to sustain cultural and legal standards. Geographical proximity and territorial boundaries prove to be less relevant, when it does not affect a document's availability if it is stored on your desktop or on a host some thousand kilometers away. There is no international agreement on non-prohibited contents, so human rights organizations and nazi groups alike can bypass restrictions. No single authority or organization can impose its rules and standards on all others. This is why the Net is public space, a political arena where free expression is possible. This freedom is conditioned by the design of the Net. But the Net's design is not a given, as When the World Wide Web was introduced, soon small independent media and human rights organizations began to use this platform for drawing worldwide attention to their publications and causes. It seemed to be the dawning of a new era with authoritarian regimes and multinational media corporations on the looser side. But now the Net's design is changing according to their needs. "In every context that it can, the entertaining industry is trying to force the Internet into its own business model: the perfect control of content. From music (fighting MP3) and film (fighting the portability of DVD) to television, the industry is resisting the Net's original design. It was about the free flow of content; Hollywood wants perfect control instead" (Lawrence Lessig, In the United States, Hollywood and For small independent media it will become very hard to be heard, especially for those offering streaming video and music. Increasingly faster data transmissions just apply to download capacities; upload capacities are much - on the average about eight times - lower than download capacities. As an AT&T executive said in response to criticism: "We haven't built a 56 billion dollar cable network to have the blood sucked from our veins" ( Consumers, not producers are preferred. For corporations what remains to be done to control the Net is mainly to cope with the fact that because of the Net it has become increasingly difficult to sustain cultural and legal standards. On Nov 11, 1995 the German prosecuting attorney's office searched Compuserve Germany, the branch of an international Internet service provider, because the company was suspected of having offered access to child pornography. Consequently Compuserve blocked access to more than 200 Also in 1995, as an attack on US Vice-President Al Gore's intention to supply all public schools with Internet access, Republican Senator Charles Grassley warned of the lurking dangers for children on the Net. By referring to a Time magazine cover story by Philip Elmer-Dewitt from July 3 on pornography on the Net, he pointed out that 83,5% of all images online are pornographic. But Elmer-Dewitt was wrong. Obviously unaware of the difference between Almost inevitably anxieties accompany the introduction of new technologies. In the 19th century it was said that traveling by train is bad for health. The debate produced by Time magazine's cover story and Senator Grassley's attack caused the impression that the Net has multiplied possible dangers for children. The global communication networks seem to be a inexhaustible source of mushrooming child pornography. Later would-be bomb recipes found on the Net added to already prevailing anxieties. As even in industrialized countries most people still have little or no first-hand experience with the Net, anxieties about child pornography or terrorist attacks can be stirred up and employed easily. A similar and related debate is going on about the glorification of violence and erotic depictions in media. Pointing to a "toxic popular culture" shaped by media that "distort children's view of reality and even undermine their character growth", US right-wing social welfare organizations and think tanks call for strong media censorship. (See An Appeal to Hollywood, The intentions for stimulating a debate on child pornography on the Net were manifold: Inter alia, it served the Republican Party to attack Democrat Al Gore's initiative to supply all public schools with Internet access; additionally, the big media corporations realized that because of the Net they might have to face new competitors and rushed to press for content regulation. Taking all these intentions together, we can say that this still ongoing debate constitutes the first and most well known attempt to impose content regulation on the Net. Consequently, at least in Western countries, governments and media corporations refer to child pornography for justifying legal requirement and the implementation of technologies for the surveillance and monitoring of individuals, the filtering, rating and blocking of content, and the prohibition of anonymous publishing on the Net. In the name of "cleaning" the Net of child pornography, our basic rights are restricted. It is the insistence on unrestricted basic rights that needs to be justified, as it may seem. Underlying the campaign to control the Net are several assumptions. Inter alia: The Net lacks control and needs to be made safe and secure; we may be exposed inadvertently to pornographic content; this content is harmful to children. Remarkably, racism seems to be not an issue. The Net, especially the World Wide Web, is not like television (although it is to be feared this is what it might become like within the next years). Say, little Mary types "Barbie" in a search engine. Click In reaction to these anxieties, but in absence of data how children use the Internet, the US government released the Communications Decency Act (CDA) in 1996. In consequence the So, after the failing of the CDA the US government has shifted its responsibility to the industry by inviting corporations to taking on governmental tasks. Bearing in the mind the CompuServe case and its possible consequences, the industry welcomed this decision and was quick to call this newly assumed responsibility "self-regulation". Strictly speaking, "self-regulation" as meant by the industry does not amount to the regulation of the behaviour of corporations by themselves. On the opposite, "self-regulation" is to be understood as the regulation of users' behaviour by the rating, filtering and blocking of Internet content considered being inappropriate. The Internet industry tries to show that technical solutions are more favourable than legislation und wants to be sure, not being held responsible and liable for illegal, offensive or harmful content. A new CompuServe case and a new Communications Decency Act shall be averted. In the Memorandum In fact, the "self-regulation" of the Internet industry is privatized censorship performed by corporations and right-wing NGOs. Censorship has become a business. "Crucially, the lifting of restrictions on market competition hasn't advanced the cause of freedom of expression at all. On the contrary, the privatisation of cyberspace seems to be taking place alongside the introduction of heavy censorship." ( While trying to convince us that its technical solutions are appropriate alternatives to government regulation, the Internet industry cannot dispense of governmental backing to enforce the proposed measures. This adds to and enforces the censorship measures already undertaken by governments. We are encouraged to use today's information and communication technologies, while the flow of information is restricted. According to a report by Reporters Sans Frontières, quoted by Leonard R. Sussman in his essay |
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c2o (Community Communications Online) c2o, founded in 1997, provides consultancy, training and web hosting services to community-based organizations in the Australasian region. c2o's focus lies on addressing the issues and needs that have arisen from the transition from connectivity to information management. Strategies and Policies Content and Delivery: c2o focuses on the development and maintenance of content delivery services that assist in the publication and dissemination of information, particularly that of community interest including environment, social development, human rights and social justice. Publishing Support: c2o designs online publishing systems that provide a means for user maintenance and tools that enhance an organizations existing information systems. c2o seeks seamless integration and user empowerment. Asia-Pacific Networking: c2o supports networking initiatives throughout Australia and the Asia Pacific region. It promotes and encourages public and equitable access to networking technologies. |
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Local Area Network (LAN) A Local Area Network is an office network, a network restricted to a building area. |
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Intelsat Intelsat, the world's biggest communication satellite services provider, is still mainly owned by governments, but will be privatised during 2001, like http://www.intelsat.int/index.htm |
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Backbone Networks Backbone networks are central networks usually of very high bandwidth, that is, of very high transmitting capacity, connecting regional networks. The first backbone network was the |
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Fiber-optic cable networks Fiber-optic cable networks may become the dominant method for high-speed Internet connections. Since the first fiber-optic cable was laid across the Atlantic in 1988, the demand for faster Internet connections is growing, fuelled by the growing network traffic, partly due to increasing implementation of corporate networks spanning the globe and to the use of graphics-heavy contents on the Fiber-optic cables have not much more in common with copper wires than the capacity to transmit information. As copper wires, they can be terrestrial and submarine connections, but they allow much higher transmission rates. Copper wires allow 32 telephone calls at the same time, but fiber-optic cable can carry 40,000 calls at the same time. A capacity, Copper wires will not come out of use in the foreseeable future because of technologies as For technical information from the Encyclopaedia Britannica on telecommunication cables, click An entertaining report of the laying of the FLAG submarine cable, up to now the longest fiber-optic cable on earth, including detailed background information on the cable industry and its history, Neal Stephenson has written for Wired: Mother Earth Mother Board. Click Susan Dumett has written a short history of undersea cables for Pretext magazine, Evolution of a Wired World. Click A timeline history of submarine cables and a detailed list of seemingly all submarine cables of the world, operational, planned and out of service, can be found on the Web site of the For maps of fiber-optic cable networks see the website of |
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Digital Subscriber Line (DSL) DSL connections are high-speed data connections over copper wire telephone lines. As with cable connections, with DSL you can look up information on the Internet and make a phone call at the same time but you do not need to have a new or additional cable or line installed. One of the most prominent DSL services is ISDN (integrated services digital network, for more information click here ( |
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