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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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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Global hubs of the data body industry

While most data bunkers are restricted to particular areas or contexts, there are others which act as global data nodes. Companies such as EDS (Electronic Data Systems), Experian, First Data Corporation and Equifax operate globally and run giant databases containing personal information. They are the global hubs of the data body economy.

Company

Sales in USD billions

Size of client database in million datasets





Equifax





1,7





360





Experian





1,5





779





Fist Data Corporation





5,5





260





EDS





18,5









(not disclosed)

(Sales and database sizes, 1998)

The size of these data repositories is constantly growing, so it is only a matter of time when everybody living in the technologically saturated part of the world will be registered in one of these data bunkers.

Among these companies, EDS, founded by the former US presidential candidate Ross Perot, known for his right-wing views and direct language, is of particular importance. Not only is it the world's largest data body company, it is also secretive about the size of its client database - a figure disclosed by the other companies either in company publications or upon enquiry. After all, the size of such a data base makes a company more attractive for potential customers.

For many years, EDS has been surrounded by rumours concerning sinister involvement with intelligence agencies. Beyond the rumours, though, there are also facts. EDS has a special division for government services. EDS does business with all military agencies of the US, as well as law enforcement agencies, justice agencies, and many others. The company also maintains a separate division for military equipment In 1984, the company became a subsidiary of General Motors, itself a leading manufacturer of military and intelligence systems. EDS is listed by the Federation of American Scientist's intelligence resource program as contractor to US intelligence agencies, and prides itself, amongst other things, to respond to the "rise of the citizen as a consumer".

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CIM

To perform manufacturing firm's functions related to design and production the CAD/CAM technology, for computer-aided design and computer-aided manufacturing, was developed. Today it is widely recognized that the scope of computer applications must extend beyond design and production to include the business functions of the firm. The name given to this more comprehensive use of computers is computer-integrated manufacturing (CIM).

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retouch

The retouch is the simplest way to change a picture. Small corrections can be made through this way.
A well-known example is the correction of a picture from a Bill Clinton-visit in Germany. In the background of the photograph stood some people, holding a sign with critical comments. In some newspapers the picture was printed like this, in others a retouch had erased the sign.
Another example happened in Austria in 1999:
The right wing party FPÖ had a poster for the Parliamentarian elections which said: 1999 reasons to vote for Haider. Others answered by producing a retouch saying: 1938 reasons to not vote for Haider (pointing to the year 1939, when the vast majority of the Austrians voted for the "Anschluss" to Germany).

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Braille

Universally accepted system of writing used by and for blind persons and consisting of a code of 63 characters, each made up of one to six raised dots arranged in a six-position matrix or cell. These Braille characters are embossed in lines on paper and read by passing the fingers lightly over the manuscript. Louis Braille, who was blinded at the age of three, invented the system in 1824 while a student at the Institution Nationale des Jeunes Aveugles (National Institute for Blind Children), Paris.

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