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

TEXTBLOCK 1/1 // URL: http://world-information.org/wio/infostructure/100437611776/100438658974

ARPAnet ARPAnet was the small network of individual computers connected by leased lines that marked the beginning of today's global data networks. Being an experimental network mainly serving the purpose to test the feasibility of wide area networks, the possibility of remote computing, it was created for resource sharing between research institutions, not for messaging services like E-mail. Although research was sponsored by US military, ARPAnet was not designed for directly martial use but to support military-related research. In 1969 ARPANET went online and links the first two computers, one of them located at the University of California, Los Angeles, the other at the Stanford Research Institute. But ARPAnet has not become widely accepted before it was demonstrated in action to a public of computer experts at the First International Conference on Computers and Communication in Washington, D. C. in 1972. Before it was decommissioned in 1990, NSFnet, a network of scientific and academic computers funded by the National Science Foundation, and a separate new military network went online in 1986. In 1988 the first private Internet service providers offered a general public access to NSFnet. Beginning in 1995, after having become the backbone of the Internet in the USA, NSFnet was turned over to a consortium of commercial backbone providers. This and the launch of the World Wide Web added to the success of the global data network we call the Net. In the USA commercial users already outnumbered military and academic users in 1994. Despite the rapid growth of the Net, most computers linked to it are still located in the United States.

INDEXCARD, 1/1