Acessing the Internet

The Net connections can be based on wire-line and wireless access technolgies.

Wire-line access

Wire-less access

copper wires

Satellites

coaxial cables

mobile terrestrial antennas

electric power lines

fixed terrestrial antennas

fiber-optic cables







Usually several kinds of network connections are employed at once. Generally speaking, when an E-mail message is sent it travels from the user's computer via copper wires or coaxial cables ISDN lines, etc., to an Internet Service Provider, from there, via fibre-optic cables, to the nearest Internet exchange, and on into a backbone network, tunneling across the continent und diving through submarine fibre-optic cables across the Atlantic to another Internet exchange, from there, via another backbone network and across another regional network to the Internet Service Provider of the supposed message recipient, from there via cables and wires of different bandwidth arriving at its destination, a workstation permanently connected to the Internet. Finally a sound or flashing icon informs your virtual neighbor that a new message has arrived.

Satellite communication

Although facing competition from fiber-optic cables as cost-effective solutions for broadband data transmission services, the space industry is gaining increasing importance in global communications. As computing, telephony, and audiovisual technologies converge, new wireless technologies are rapidly deployed occupying an increasing market share and accelerating the construction of high-speed networks.

Privatization of satellite communication

Until recently transnational satellite communication was provided exclusively by intergovernmental organizations as Intelsat, Intersputnik and Inmarsat.

Scheduled privatization of intergovernmental satellite consortia:

Satellite consortia

Year of foundation

Members

Scheduled date for privatization

Intelsat

1964

200 nations under the leadership of the USA

2001

Intersputnik

1971

23 nations under the leadership of Russia

?

Inmarsat

1979

158 nations (all members of the International Maritime Organization)

privatized since 1999

Eutelsat

1985

Nearly 50 European nations

2001



When Intelsat began to accumulate losses because of management failures and the increasing market share of fiber-optic cables, this organizational scheme came under attack. Lead by the USA, the Western industrialized countries successfully pressed for the privatization of all satellite consortia they are members of and for competition by private carriers.

As of February 2000, there are 2680 satellites in service. Within the next four years a few hundred will be added by the new private satellite systems. Most of these systems will be so-called Low Earth Orbit satellite systems, which are capable of providing global mobile data services on a high-speed level at low cost.

Because of such technological improvements and increasing competition, experts expect satellite-based broadband communication to be as common, cheap, and ubiquitous as satellite TV today within the next five or ten years.

Major satellite communication projects

Project name

Main investors

Expected cost

Number of satellites

Date of service start-up

Astrolink

Lockheed Martin, TRW, Telespazio, Liberty Media Group

US$ 3.6 billion

9

2003

Globalstar

13 investors including Loral Space & Communications, Qualcomm, Hyundai, Alcatel, France Telecom, China Telecom, Daimler Benz and Vodafone/Airtouch

US$ 3.26 billion

48

1998

ICO

57 investors including British Telecom, Deutsche Telecom, Inmarsat, TRW and Telefonica

US$ 4.5 billion

10

2001

Skybridge

9 investors including Alcatel Space, Loral Space & Communications, Toshiba, Mitsubishi and Sharp

US$ 6.7 billion

80

2002

Teledesic

Bill Gates, Craig McCaw, Prince Alwaleed Bin Talal Bin Abdul Aziz Alsaud, Abu Dhabi Investment Company

US$ 9 billion

288

2004


Source: Analysys Satellite Communications Database

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Problems of Copyright Management and Control Technologies

Profiling and Data Mining

At their most basic copyright management and control technologies might simply be used to provide pricing information, negotiate the purchase transaction, and release a copy of a work for downloading to the customer's computer. Still, from a technological point of view, such systems also have the capacity to be employed for digital monitoring. Copyright owners could for example use the transaction records generated by their copyright management systems to learn more about their customers. Profiles, in their crudest form consisting of basic demographic information, about the purchasers of copyrighted material might be created. Moreover copyright owners could use search agents or complex data mining techniques to gather more information about their customers that could either be used to market other works or being sold to third parties.

Fair Use

Through the widespread use of copyright management and control systems the balance of control could excessively be shifted in favor of the owners of intellectual property. The currently by copyright law supported practice of fair use might potentially be restricted or even eliminated. While information in analogue form can easily be reproduced, the protection of digital works through copyright management systems might complicate or make impossible the copying of material for purposes, which are explicitly exempt under the doctrine of fair use.

Provisions concerning technological protection measures and fair use are stated in the DMCA, which provides that "Since copying of a work may be a fair use under appropriate circumstances, section 1201 does not prohibit the act of circumventing a technological measure that prevents copying. By contrast, since the fair use doctrine is not a defense e to the act of gaining unauthorized access to a work, the act of circumventing a technological measure in order to gain access is prohibited." Also the proposed EU Directive on copyright and related rights in the information society contains similar clauses. It distinguishes between the circumvention of technical protection systems for lawful purposes (fair use) and the circumvention to infringe copyright. Yet besides a still existing lack of legal clarity also very practical problems arise. Even if the circumvention of technological protection measures under fair use is allowed, how will an average user without specialized technological know-how be able to gain access or make a copy of a work? Will the producers of copyright management and control systems provide fair use versions that permit the reproduction of copyrighted material? Or will users only be able to access and copy works if they hold a digital "fair use license" ("fair use licenses" have been proposed by Mark Stefik, whereby holders of such licenses could exercise some limited "permissions" to use a digital work without a fee)?

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Timeline Cryptography - Introduction

Besides oral conversations and written language many other ways of information-transport are known: like the bush telegraph, drums, smoke signals etc. Those methods are not cryptography, still they need en- and decoding, which means that the history of language, the history of communication and the history of cryptography are closely connected to each other
The timeline gives an insight into the endless fight between enciphering and deciphering. The reasons for them can be found in public and private issues at the same time, though mostly connected to military maneuvers and/or political tasks.

One of the most important researchers on Cryptography through the centuries is David Kahn; many parts of the following timeline are originating from his work.

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Data bunkers

Personal data are collected, appropriated, processed and used for commercial purposes on a global scale. In order for such a global system to operate smoothly, there a server nodes at which the data streams converge. Among the foremost of these are the data bases of credit card companies, whose operation has long depended on global networking.

On top of credit card companies such as Visa, American Express, Master Card, and others. It would be erroneous to believe that the primary purpose of business of these companies is the provision of credit, and the facilitation of credit information for sale transactions. In fact, Information means much more than just credit information. In an advertisement of 1982, American Express described itself in these terms: ""Our product is information ...Information that charges airline tickets, hotel rooms, dining out, the newest fashions ...information that grows money funds buys and sells equities ...information that pays life insurance annuities ...information that schedules entertainment on cable television and electronically guards houses ...information that changes kroners into guilders and figures tax rates in Bermuda ..."

Information has become something like the gospel of the New Economy, a doctrine of salvation - the life blood of society, as Bill Gates expresses it. But behind information there are always data that need to be generated and collected. Because of the critical importance of data to the economy, their possession amounts to power and their loss can cause tremendous damage. The data industry therefore locates its data warehouses behind fortifications that bar physical or electronic access. Such structures are somewhat like a digital reconstruction of the medieval fortress

Large amounts of data are concentrated in fortress-like structures, in data bunkers. As the Critical Art Ensemble argue in Electronic Civil Disobedience: "The bunker is the foundation of homogeneity, and allows only a singular action within a given situation." All activities within data bunker revolve around the same principle of calculation. Calculation is the predominant mode of thinking in data-driven societies, and it reaches its greatest density inside data bunkers. However, calculation is not a politically neutral activity, as it provides the rational basis - and therefore the formal legitimisation most every decision taken. Data bunkers therefore have an essentially conservative political function, and function to maintain and strengthen the given social structures.

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Biometric applications: surveillance

Biometric technologies are not surveillance technologies in themselves, but as identification technologies they provide an input into surveillance which can make such as face recognition are combined with camera systems and criminal data banks in order to supervise public places and single out individuals.

Another example is the use of biometrics technologies is in the supervision of probationers, who in this way can carry their special hybrid status between imprisonment and freedom with them, so that they can be tracked down easily.

Unlike biometric applications in access control, where one is aware of the biometric data extraction process, what makes biometrics used in surveillance a particularly critical issue is the fact that biometric samples are extracted routinely, unnoticed by the individuals concerned.

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Atrocity Stories

Atrocity stories are nothing else than lies; the two words "atrocity stories" simply pretend to be more diplomatic.
The purpose is to destroy an image of the enemy, to create a new one, mostly a bad one. The story creating the image is not necessarily made up completely. It can also be a changed into a certain variable direction.
The most important thing about atrocity stories is to follow the line of possibility. Even if the whole story is made up it must be probable or at least possible, following rumors. Most successful might it be if a rumor is spread on purpose, some time before the atrocity story is launched, because as soon as something seems to be familiar, it is easier to believe it.

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Definition

During the last 20 years the old Immanuel Wallerstein-paradigm of center - periphery and semi-periphery found a new costume: ICTs. After Colonialism, Neo-Colonialism and Neoliberalism a new method of marginalization is emerging: the digital divide.

"Digital divide" describes the fact that the world can be divided into people who
do and people who do not have access to (or the education to handle with) modern information technologies, e.g. cellular telephone, television, Internet. This digital divide is concerning people all over the world, but as usually most of all people in the formerly so called third world countries and in rural areas suffer; the poor and less-educated suffer from that divide.
More than 80% of all computers with access to the Internet are situated in larger cities.

"The cost of the information today consists not so much of the creation of content, which should be the real value, but of the storage and efficient delivery of information, that is in essence the cost of paper, printing, transporting, warehousing and other physical distribution means, plus the cost of the personnel manpower needed to run these `extra' services ....Realizing an autonomous distributed networked society, which is the real essence of the Internet, will be the most critical issue for the success of the information and communication revolution of the coming century of millennium."
(Izumi Aizi)

for more information see:
http://www.whatis.com/digital_divide.htm

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History: Communist Tradition

Following the communist revolutions of the 20th century all "means of production" became the property of the state as representative of "the masses". Private property ceased to exist. While moral rights of the creator were recognized and economic rights acknowledged with a one-time cash award, all subsequent rights reverted to the state.

With the transformation of many communist countries to a market system most of them have now introduced laws establishing markets in intellectual property rights. Still the high rate of piracy reflects a certain lack of legal tradition.

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Bureaucratic data bunkers



Among the foremost of the data bunkers government bureaucracies. Bureaucracies are the oldest forms of bunkers and are today deeply engrained in modern societies. Bureaucracies have always had the function of collecting and administering the data of subjects. What make this process more problematic in the age of ICT is that a lot more data can be collected, they can be collected in clandestine ways (e.g. in surveillance situations), and the can be combined and merged using advanced data mining technologies. In addition, there is a greater rationale for official data collecting, as a lot more data is required for the functioning of public administration as in previous periods, as societies rush to adopt increasingly complex technologies, above all ICTs. The increasing complexity of modern societies means that an increasing number of bureaucratic decision is taken, all of which require a calculation process. Complexity, viewed through government spectacles, generates insecurity - a great deal of the bureaucratic activity therefore revolves around the topic of security.

In spite of the anti-bureaucratic rhetoric of most governments, these factors provides the bureaucracies with an increased hold on society. Foremost bureaucratic data bunkers include the following:

    Law enforcement agencies

    Fiscal agencies

    Intelligence agencies

    Social welfare agencies

    Social insurance institutions

    Public health agencies

    Educational institutions



These are agencies that enjoy the privileged protection of the state. Those among them that operate in the field of security are further protected against public scrutiny, as they operate in an area to which democratic reason has no access.

What makes the data repositories of these institutions different from private data bunkers is their "official", i.e. their politically binding and definitive character. CAE speak of the bureaucracy as a "concrete form of uninterruptible, official and legitimised memory."

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Expert system

Expert systems are advanced computer programs that mimic the knowledge and reasoning capabilities of an expert in a particular discipline. Their creators strive to clone the expertise of one or several human specialists to develop a tool that can be used by the layman to solve difficult or ambiguous problems. Expert systems differ from conventional computer programs as they combine facts with rules that state relations between the facts to achieve a crude form of reasoning analogous to artificial intelligence. The three main elements of expert systems are: (1) an interface which allows interaction between the system and the user, (2) a database (also called the knowledge base) which consists of axioms and rules, and (3) the inference engine, a computer program that executes the inference-making process. The disadvantage of rule-based expert systems is that they cannot handle unanticipated events, as every condition that may be encountered must be described by a rule. They also remain limited to narrow problem domains such as troubleshooting malfunctioning equipment or medical image interpretation, but still have the advantage of being much lower in costs compared with paying an expert or a team of specialists.

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atbash

Atbash is regarded as the simplest way of encryption. It is nothing else than a reverse-alphabet. a=z, b= y, c=x and so on. Many different nations used it in the early times of writing.

for further explanations see:
http://www.ftech.net/~monark/crypto/crypt/atbash.htm

http://www.ftech.net/~monark/crypto/crypt/atb...
INDEXCARD, 2/9
 
Internet Relay Chat (IRC)

IRC is a text-based chat system used for live discussions of groups.

For a history of IRC see Charles A. Gimon, IRC: The Net in Realtime, http://www.skypoint.com/~gimonca/irc2.html

http://www.skypoint.com/~gimonca/irc2.html
INDEXCARD, 3/9
 
International Standardization Organization

ISO (International Organization for Standardization), founded in 1946, is a worldwide federation of national standards bodies from some 100 countries, one from each country. Among the standards it fosters is Open Systems Interconnection (OSI), a universal reference model for communication protocols. Many countries have national standards organizations that participate in and contribute to ISO standards making.

http://www.iso.ch

Source: Whatis.com

http://www.iso.ch/
INDEXCARD, 4/9
 
Reuters Group plc

Founded in 1851 in London, Reuters is the world's largest news and television agency with 1,946 journalists, photographers and camera operators in 183 bureaus serving newspapers, other news agencies, and radio and television broadcasters in 157 countries.
In addition to its traditional news-agency business, over its network Reuters provides financial information and a wide array of electronic trading and brokering services to banks, brokering houses, companies, governments, and individuals worldwide.

http://www.reuters.com

INDEXCARD, 5/9
 
Terrestrial antennas

Microwave transmission systems based on terrestrial antennas are similar to satellite transmission system. Providing reliable high-speed access, they are used for cellular phone networks.

The implementation of the Wide Application Protocol (WAP) makes the wireless access to Internet services as E-Mail and even the World Wide Web via cellular phones convenient. Therefore microwave transmission systems become increasingly important.

INDEXCARD, 6/9
 
Vladimir Putin

Vladimir Putin is Russian President, Boris Yeltsin's. Until his appointment as Prime Minister in August 1999, he was nearly unknown. He had been working for the Soviet Security Service, the KGB. In July 1998 he took charge of the Federal Security Service, FSB. In March 1999 he became secretary of the Security Council. He has no experience in being at all. Where he demonstrated power until now is the Chechnya War. Soon after the beginning of this 2nd war in the region his popularity rose.

INDEXCARD, 7/9
 
Leonard M. Adleman

Leonard M. Adleman was one of three persons in a team to invent the RSA public-key cryptosystem. The co-authors were Adi Shamir and Ron Rivest.

INDEXCARD, 8/9
 
Open Systems Interconnection (OSI)

Open Systems Interconnection (OSI) is a standard reference model for communication between two end users in a network. It is used in developing products and understanding networks.

Source: Whatis.com

INDEXCARD, 9/9