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
TEXTBLOCK 1/4 // URL: http://world-information.org/wio/infostructure/100437611776/100438658824
As within the traditional media landscape, Internet content providers have two primary means of generating revenue: Direct sales or subscriptions, and advertising. Especially as charging Internet users for access to content - with all the free material available - has proven problematic, advertising is seen as the best solution for creating revenues in the short term. Therefore intense competition has started among Internet content providers and access services to attract advertising money.
Table: Web-Sites Seeking Advertising
|
Source: Adknowledge eAnalytics. Online Advertising Report
TEXTBLOCK 2/4 // URL: http://world-information.org/wio/infostructure/100437611652/100438657986
The advertising industry has always relied on media to transport their messages and disseminate them to the public. Depending on the product or service advertised and the audience targeted different media are used. Besides cinema and outdoor advertising (posters etc.) the huge majority of ads is placed within the classical media landscape, which includes TV, newspapers, magazines and radio.
Whereas in most cases only a relatively small fraction of advertising budgets is spent on cinema, outdoor and radio advertising, newspapers, magazines and TV account for more than two thirds of the money spent on ads. Still with the growing popularity of new media advertisers and marketers have recently also discovered digital networks and especially the Internet for their purposes.
TEXTBLOCK 3/4 // URL: http://world-information.org/wio/infostructure/100437611652/100438657946
Looking at how public relations practitioners advertise their services, they do not primarily seem to be followers of the "social engineering" approach.
TEXTBLOCK 4/4 // URL: http://world-information.org/wio/infostructure/100437611652/100438658045
the word "cipher" comes from the Hebrew word "saphar", meaning "to number". Ciphers are mere substitutions. Each letter of the alphabet gets substituted; maybe by one letter or two or more.
an example:
PLAINTEXT a b c d e f g h i j k l m n o p q r s t u v w x y z
CIPHERTEXT D E F G H I J K L M N O P Q R S T U V W X Y Z A B C
The Public Relations Society of America (PRSA), headquartered in New York City, is one of the world's largest professional organizations for public relations practitioners. The Society's almost 20,000 members represent business and industry, counselling firms, government, associations, hospitals, schools, professional services firms and non-profit organizations. Since it was chartered in 1948, PRSA has continued to provide a forum for addressing issues affecting the profession, and tried to promote professional standards. It offers opportunities for improvement of skills and advancement of knowledge, as well as for exchange of information and experiences with other public relations professionals.
Seagram is the largest producer and marketer of distilled spirits in the world. It is headquartered in Montreal, Que. The company began when Distillers Corp., Ltd., a Montreal distillery owned by Samuel Bronfman, acquired Joseph E. Seagram & Sons in 1928. Under the leadership of the founder's son, Edgar M. Bronfman, who became head of the company in 1971, the firm diversified during the 1950s and '60s from its original base of blended whiskies into the production and marketing of scotch, bourbon, rum, vodka, gin, and many different wines. It also expanded into the European, Latin American, East Asian, and African markets with its products. The company adopted its present name in 1975. It produces more than 400 different brands of distilled spirits and wines. Edgar M. Bronfman, Jr., took over as head of the company in 1989. Seagram in 1995 purchased MCA Inc., a media and entertainment firm, from the Matsushita Electric Industrial Company.
also called "the study of code". It includes both, cryptography and cryptoanalysis
to put the ciphers/codes back into the plaintext