Eliminating online censorship: Freenet, Free Haven and Publius

Protecting speech on the global data networks attracts an increasing attention. The efforts and the corresponding abilities of governmental authorities, corporations and copyright enforcement agencies are countered by similar efforts and abilities of researchers and engineers to provide means for anonymous and uncensored communication, as Freenet, Free Haven and Publius. All three of them show a similar design. Content is split up and spread on several servers. When a file is requested, the pieces are reassembled. This design makes it difficult to censor content. All of these systems are not commercial products.

The most advanced system seems to be Publius. Because of being designed by researchers and engineers at the prestigious AT&T Labs, Publius is a strong statement against online censorship. No longer can it be said that taking a firm stand against the use of technologies limiting the freedom of individuals is a position of radical leftists only.

For more information on Publius, see John Schwartz, Online and Unidentifiable? in: The Washington Post, June 30, 2000, http://www.washingtonpost.com/wp-dyn/articles/A21689-2000Jun29.html .

Freenet web site: http://freenet.sourceforge.net

Free Haven web site: http://www.freehaven.net

Publius web site: http://www.cs.nyu.edu/waldman/publius

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Late 1950s - Early 1960s: Second Generation Computers

An important change in the development of computers occurred in 1948 with the invention of the transistor. It replaced the large, unwieldy vacuum tube and as a result led to a shrinking in size of electronic machinery. The transistor was first applied to a computer in 1956. Combined with the advances in magnetic-core memory, the use of transistors resulted in computers that were smaller, faster, more reliable and more energy-efficient than their predecessors.

Stretch by IBM and LARC by Sperry-Rand (1959) were the first large-scale machines to take advantage of the transistor technology (and also used assembly language instead of the difficult machine language). Both developed for atomic energy laboratories could handle enormous amounts of data, but still were costly and too powerful for the business sector's needs. Therefore only two LARC's were ever installed.

Throughout the early 1960s there were a number of commercially successful computers (for example the IBM 1401) used in business, universities, and government and by 1965 most large firms routinely processed financial information by using computers. Decisive for the success of computers in business was the stored program concept and the development of sophisticated high-level programming languages like FORTRAN (Formular Translator), 1956, and COBOL (Common Business-Oriented Language), 1960, that gave them the flexibility to be cost effective and productive. The invention of second generation computers also marked the beginning of an entire branch, the software industry, and the birth of a wide range of new types of careers.

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Legal Protection: National Legislation

Intellectual property - comprising industrial property and copyright - in general is protected by national legislation. Therefore those rights are limited territorially and can be exercised only within the jurisdiction of the country or countries under whose laws they are granted.

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Timeline BC

~ 1900 BC: Egyptian writers use non-standard Hieroglyphs in inscriptions of a royal tomb; supposedly this is not the first but the first documented example of written cryptography

1500 an enciphered formula for the production of pottery is done in Mesopotamia

parts of the Hebrew writing of Jeremiah's words are written down in "atbash", which is nothing else than a reverse alphabet and one of the first famous methods of enciphering

4th century Aeneas Tacticus invents a form of beacons, by introducing a sort of water-clock

487 the Spartans introduce the so called "skytale" for sending short secret messages to and from the battle field

170 Polybius develops a system to convert letters into numerical characters, an invention called the Polybius Chequerboard.

50-60 Julius Caesar develops an enciphering method, later called the Caesar Cipher, shifting each letter of the alphabet an amount which is fixed before. Like atbash this is a monoalphabetic substitution.

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Timeline 1600 - 1900 AD

17th century Cardinal Richelieu invents an encryption-tool called grille, a card with holes for writing messages on paper into the holes of those cards. Afterwards he removes the cards and fills in the blanks, so the message looks like an ordinary letter. The recipient needs to own the same card

- Bishop John Wilkins invents a cryptologic system looking like music notes. In a book he describes several forms of steganographic systems like secrets inks, but also the string cipher. He mentions the so-called Pig Latin, a spoken way of encryption that was already used by the ancient Indians

- the English scientist, magician and astrologer John Dee works on the ancient Enochian alphabet; he also possesses an encrypted writing that could not been broken until today

1605/1623 Sir Francis Bacon (= Francis Tudor = William Shakespeare?) writes several works containing ideas about cryptography. One of his most important advises is to use ciphers in such a way that no-one gets suspicious that the text could be enciphered. For this the steganogram was the best method, very often used in poems. The attempt to decipher Shakespeare's sonnets (in the 20th century) lead to the idea that his works had been written by Francis Bacon originally.

1671 Leibniz invents a calculating machine that uses the binary scale which we still use today, more advanced of course, called the ASCII code

18th century this is the time of the Black Chambers of espionage in Europe, Vienna having one of the most effective ones, called the "Geheime Kabinettskanzlei", headed by Baron Ignaz von Koch. Its task is to read through international diplomatic mail, copy letters and return them to the post-office the same morning. Supposedly about 100 letters are dealt with each day.

1790's Thomas Jefferson and Robert Patterson invent a wheel cipher

1799 the Rosetta Stone is found and makes it possible to decipher the Egyptian Hieroglyphs

1832 or 1838 Sam Morse develops the Morse Code, which actually is no code but an enciphered alphabet of short and long sounds. The first Morse code-message is sent by telegraph in 1844.

1834 the Braille Code for blind people is developed in today's form by Louis Braille

1844 the invention of the telegraph changes cryptography very much, as codes are absolutely necessary by then

1854 the Playfair cipher is invented by Sir Charles Wheatstone

1859 for the first time a tomographic cipher gets described

1861 Friedrich W. Kasiski does a cryptoanalysis of the Vigenère ciphers, which had been supposed to be uncrackable for ages

1891 Major Etienne Bazeries creates a new version of the wheel cipher, which is rejected by the French Army

1895 the invention of the radio changes cryptography-tasks again and makes them even more important

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1980s: Artificial Intelligence (AI) - From Lab to Life

Following the commercial success of expert systems, which started in the 1970s, also other AI technologies began to make their way into the marketplace. In 1986, U.S. sales of AI-related hardware and software rose to U.S.$ 425 million. Especially expert systems, because of their efficiency, were still in demand. Yet also other fields of AI turned out to be successful in the corporate world.

Machine vision systems for example were used for the cameras and computers on assembly lines to perform quality control. By 1985 over a hundred companies offered machine vision systems in the U.S., and sales totaled U.S.$ 80 million. Although there was a breakdown in the market for AI-systems in 1986 - 1987, which led to a cut back in funding, the industry slowly recovered.

New technologies were being invented in Japan. Fuzzy logic pioneered in the U.S. and also neural networks were being reconsidered for achieving artificial intelligence. The probably most important development of the 1980s was, that it showed that AI technology had real life uses. AI applications like voice and character recognition systems or steadying camcorders using fuzzy logic were not only made available to business and industry, but also to the average customer.

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Challenges for Copyright by ICT: Digital Content Providers

Providers of digital information might be confronted with copyright related problems when using some of the special features of hypertext media like frames and hyperlinks (which both use third party content available on the Internet to enhance a webpage or CD ROM), or operate a search engine or online directory on their website.

Framing

Frames are often used to help define, and navigate within, a content provider's website. Still, when they are used to present (copyrighted) third party material from other sites issues of passing off and misleading or deceptive conduct, as well as copyright infringement, immediately arise.

Hyperlinking

It is generally held that the mere creation of a hyperlink does not, of itself, infringe copyright as usually the words indicating a link or the displayed URL are unlikely to be considered a "work". Nevertheless if a link is clicked on the users browser will download a full copy of the material at the linked address creating a copy in the RAM of his computer courtesy of the address supplied by the party that published the link. Although it is widely agreed that the permission to download material over the link must be part of an implied license granted by the person who has made the material available on the web in the first place, the scope of this implied license is still the subject of debate. Another option that has been discussed is to consider linking fair use.

Furthermore hyperlinks, and other "information location tools", like online directories or search engines could cause their operators trouble if they refer or link users to a site that contains infringing material. In this case it is yet unclear whether providers can be held liable for infringement.

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Economic structure; digital euphoria

The dream of a conflict-free capitalism appeals to a diverse audience. No politician can win elections without eulogising the benefits of the information society and promising universal wealth through informatisation. "Europe must not lose track and should be able to make the step into the new knowledge and information society in the 21st century", said Tony Blair.

The US government has declared the construction of a fast information infrastructure network the centerpiece of its economic policies

In Lisbon the EU heads of state agreed to accelerate the informatisation of the European economies

The German Chancellor Schröder has requested the industry to create 20,000 new informatics jobs.

The World Bank understands information as the principal tool for third world development

Electronic classrooms and on-line learning schemes are seen as the ultimate advance in education by politicians and industry leaders alike.

But in the informatised economies, traditional exploitative practices are obscured by the glamour of new technologies. And the nearly universal acceptance of the ICT message has prepared the ground for a revival of 19th century "adapt-or-perish" ideology.

"There is nothing more relentlessly ideological than the apparently anti-ideological rhetoric of information technology"

(Arthur and Marilouise Kroker, media theorists)

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Basics: Infringement and Fair Use

The rights of a copyright holder are infringed when one of the acts requiring the authorization of the owner is done by someone else without his consent. In the case of copyright infringement or the violation of neighboring rights the remedies for the copyright owner consist of civil redress. The unauthorized copying of protected works for commercial purposes and the unauthorized commercial dealing in copied material is usually referred to as "piracy".

Yet copyright laws also provide that the rights of copyright owners are subject to the doctrine of "fair use". That allows the reproduction and use of a work, notwithstanding the rights of the author, for limited purposes such as criticism, comment, news reporting, teaching, and research. Fair use may be described as the privilege to use the copyrighted material in a reasonable manner without the owner's consent. To determine whether a use is fair or not most copyright laws consider:

- the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes (usually certain types of educational copying are allowed)

- the nature of the copyrighted work (mostly originals made for commercial reasons are less protected than their purely artistic counterparts)

- the amount and substantiality of the portion used in relation to the copyrighted work as a whole

- the effect of the use upon the potential market for or value of the copyrighted work (as a general rule copying may be permitted if it is unlikely to cause economic harm to the original author)

Examples of activities that may be excused as fair use include: providing a quotation in a book review; distributing copies of a section of an article in class for educational purposes; and imitating a work for the purpose of parody or social commentary.

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Feeding the data body

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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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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
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RIPE

The RIPE Network Coordination Centre (RIPE NCC) is one of three Regional Internet

Registries (RIR), which exist in the world today, providing allocation and registration services which support the operation of the Internet globally, mainly the allocation of IP address space for Europe.

http://www.ripe.net

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Bandwidth

The bandwidth of a transmitted communications signal is a measure of the range of frequencies the signal occupies. The term is also used in reference to the frequency-response characteristics of a communications receiving system. All transmitted signals, whether analog or digital, have a certain bandwidth. The same is true of receiving systems.

Generally speaking, bandwidth is directly proportional to the amount of data transmitted or received per unit time. In a qualitative sense, bandwidth is proportional to the complexity of the data for a given level of system performance. For example, it takes more bandwidth to download a photograph in one second than it takes to download a page of text in one second. Large sound files, computer programs, and animated videos require still more bandwidth for acceptable system performance. Virtual reality (VR) and full-length three-dimensional audio/visual presentations require the most bandwidth of all.

In digital systems, bandwidth is data speed in bits per second (bps).

Source: Whatis.com

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Philip M. Taylor

Munitions of the Mind. A history of propaganda from the ancient world to the present era. Manchester 1995 (2nd ed.)
This book gives a quite detailed insight on the tools and tasks of propaganda in European and /or Western history. Starting with ancient times the author goes up till the Gulf War and the meaning of propaganda today. In all those different eras propaganda was transporting similar messages, even when technical possibilities had not been fairly as widespread as today. Taylor's book is leading the reader through those different periods, trying to show the typical elements of each one.

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The Flesh Machine

This is the tile of a book by the Critical Art Ensemble which puts the development of artifical life into a critical historical and political context, defining the power vectors which act as the driving force behind this development. The book is available in a print version (New York, Autonomedia 1998) and in an online version at http://www.critical-art.net/fles/book/index.html

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Total copyright industries

The total copyright industries encompass the "core copyright industries" and portions of many other industries that either create, distribute, or depend upon copyrighted works. Examples include retail trade (a portion of which is sales of video, audio, software, and books, for example), the doll and toy industry, and computer manufacturing.


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Disney

American corporation that became the best-known purveyor of child and adult entertainment in the 20th century. Its headquarters are in Burbank, Calif. The company was founded in 1929 and produced animated motion-picture cartoons.
In 1955 the company opened the Disneyland amusement park, one of the world's most famous. Under a new management, in the 1980s, Disney's motion-picture and animated-film production units became among the most successful in the United States. In 1996 the Disney corporation acquired Capital Cities/ABC Inc., which owned the ABC television network. The Disney Company also operates the Disney Channel, a pay television programming service.

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File Transfer Protocol (FTP)

FTP enables the transfer of files (text, image, video, sound) to and from other remote computers connected to the Internet.

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Wide Application Protocol (WAP)

The WAP (Wireless Application Protocol) is a specification for a set of communication protocols to standardize the way that wireless devices, such as cellular telephones and radio transceivers, can be used for Internet access, including e-mail, the World Wide Web, newsgroups, and Internet Relay Chat (IRC).

While Internet access has been possible in the past, different manufacturers have used different technologies. In the future, devices and service systems that use WAP will be able to interoperate.

Source: Whatis.com

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Cisco, Inc.

Being the worldwide leader in networking for the Internet, Cisco Systems is one of the most prominent companies of the Internet industry.

http://www.cisco.com

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Intellectual property

Intellectual property, very generally, relates to the output that result from intellectual activity in the industrial, scientific, literary and artistic fields. Traditionally intellectual property is divided into two branches: 1) industrial property (inventions, marks, industrial designs, unfair competition and geographical indications), and 2) copyright. The protection of intellectual property is guaranteed through a variety of laws, which grant the creators of intellectual goods, and services certain time-limited rights to control the use made of their products.

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WIPO

The World Intellectual Property Organization is one of the specialized agencies of the United Nations (UN), which was designed to promote the worldwide protection of both industrial property (inventions, trademarks, and designs) and copyrighted materials (literary, musical, photographic, and other artistic works). It was established by a convention signed in Stockholm in 1967 and came into force in 1970. The aims of WIPO are threefold. Through international cooperation, WIPO promotes the protection of intellectual property. Secondly, the organization supervises administrative cooperation between the Paris, Berne, and other intellectual unions regarding agreements on trademarks, patents, and the protection of artistic and literary work and thirdly through its registration activities the WIPO provides direct services to applicants for, or owners of, industrial property rights.

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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.

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Proxy Servers

A proxy server is a server that acts as an intermediary between a workstation user and the Internet so that security, administrative control, and caching service can be ensured.

A proxy server receives a request for an Internet service (such as a Web page request) from a user. If it passes filtering requirements, the proxy server, assuming it is also a cache server, looks in its local cache of previously downloaded Web pages. If it finds the page, it returns it to the user without needing to forward the request to the Internet. If the page is not in the cache, the proxy server, acting as a client on behalf of the user, uses one of its own IP addresses to request the page from the server out on the Internet. When the page is returned, the proxy server relates it to the original request and forwards it on to the user.

Source: Whatis.com

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