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Cryptograph
AB Cryptograph was a Aktiebolag, limited Swedish company developing and selling crypto machines, founded on 21 July 1916 and liquidated in 1930. It was probably the first company in the world to focus entirely on the cryptographic market. In December 1914, two Swedes; Olof Gyldén, a navy officer with an interest in cryptography; and Arvid Gerhard Damm, a Swedish engineer and inventor, met in Berlin to discuss Damm's ideas for a new type of crypto machine. Impressed, Gyldén managed to interest a group of Swedish businessmen to invest in a project to exploit Damm's ideas commercially. A patent consortium, Cryptograph, was founded in June 1915. A year later, a shareholding company with the same name was established with Gyldén as chairman and CEO. Damm was given the position of engineer and was also a shareholder. Expectations were great and sales estimated at more than 50 desktop machines and 500 handheld devices per year. However, actual sales were far below these numbers, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Cryptography Companies
Cryptography, or cryptology (from "hidden, secret"; and ''graphein'', "to write", or ''-logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of adversarial behavior. More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages. Modern cryptography exists at the intersection of the disciplines of mathematics, computer science, information security, electrical engineering, digital signal processing, physics, and others. Core concepts related to information security ( data confidentiality, data integrity, authentication, and non-repudiation) are also central to cryptography. Practical applications of cryptography include electronic commerce, chip-based payment cards, digital currencies, computer passwords, and military communications. Cryptography prior to the modern age was effectively synonymous with encryption, converting re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Enigma Machine
The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by Nazi Germany during World War II, in all branches of the Wehrmacht, German military. The Enigma machine was considered so secure that it was used to encipher the most top-secret messages. The Enigma has an electromechanical Rotor machine, rotor mechanism that scrambles the 26 letters of the alphabet. In typical use, one person enters text on the Enigma's keyboard and another person writes down which of the 26 lights above the keyboard illuminated at each key press. If plaintext is entered, the illuminated letters are the ciphertext. Entering ciphertext transforms it back into readable plaintext. The rotor mechanism changes the electrical connections between the keys and the lights with each keypress. The security of the system depends on machine settings that were generally changed daily, based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Arvid Gerhard Damm
Arvid Gerhard Damm (7 August 1869 – 7 November 1928) was a Swedish engineer and inventor. He designed a number of cipher machines, and was one of the early inventors of the wired rotor principle for machine encipherment. The company, AB Cryptograph, was an early predecessor of Crypto AG. Biography Originally a textile engineer, he was headmaster of a weaving school in Borås, Sweden, before moving to Finland to work as a manager of a textile factory. Although already married with a son, he fell in love with a circus performer from Hungary whose opposition to a relationship he overcame by arranging a sham civil wedding ceremony in 1900 with an officiant and two witnesses. His new “wife”, with whom he then the lived for 19 years, only became aware of the situation when Damm found a new romantic interest and wanted a divorce. After a long and acrimonious legal battle, in which he denied ever being married to her and accused her of being a spy, he was ordered to pay alimony ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Crypto AG
Crypto AG was a Swiss company specialising in communications and information security founded by Boris Hagelin in 1952. The company was secretly purchased in 1970 by the US Central Intelligence Agency (CIA) and West German Federal Intelligence Service (BND) for US $5.75million (equivalent to $million in ) and jointly owned until about 1993, with the CIA continuing as sole owner until about 2018. The mission of breaking encrypted communication using a secretly owned company was known as Operation Rubicon. With headquarters in Steinhausen, Switzerland, Steinhausen, the company was a long-established manufacturer of encryption machines and a wide variety of cipher devices. The company had about 230 employees, had offices in Abidjan, Abu Dhabi, Buenos Aires, Kuala Lumpur, Muscat, Selsdon and Steinhausen, Switzerland, Steinhausen, and did business throughout the world. The owners of Crypto AG were unknown, supposedly even to the managers of the firm, and they held their ownership throu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Boris Hagelin
Boris Caesar Wilhelm Hagelin (2 July 1892 – 7 September 1983) was a Swedish businessman and inventor of encryption machines. Biography Born of Swedish parents in Adshikent, Russian Empire (now Azerbaijan), Hagelin attended Lundsberg boarding school and later studied mechanical engineering at the Royal Institute of Technology in Stockholm, graduating in 1914. He gained experience in engineering through work in Sweden and the United States. His father Karl Wilhelm Hagelin worked for Nobel in Baku (part of the Russian Empire at the time), but the family returned to Sweden after the Russian Revolution. Karl Wilhelm was an investor in Arvid Gerhard Damm's company Aktiebolaget Cryptograph, established to sell rotor machines built using Damm's 1919 patent. Boris Hagelin was placed in the firm to represent the family investment. In 1925, Hagelin took over the firm, later reorganising it as Aktiebolaget Cryptoteknik in 1932. His machines competed with Scherbius' Enigma machines, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Emanuel Nobel
Emanuel Ludvig Nobel ( , ; Saint Petersburg, 1859 – Stockholm, 31 May 1932) was a Swedish oil baron, the eldest son of Ludvig Nobel and his first wife, Mina Ahlsell, grandson of Immanuel Nobel and nephew of Alfred Nobel. Businessman After his father's death, in 1888, Emanuel Nobel took over the running of the Nobel family's oil business, Branobel, an oil empire that was based in Baku and was the largest oil company in Europe, of which he and his brothers and sisters were by far the main shareholders, followed by his uncles Alfred and Robert. Carl Nobel, Emanuel's brother, was put in charge of the Machine-Building Factory Ludvig Nobel. Emanuel Nobel was a very forward-looking businessman, just like his father, who had instigated the construction of Russia's first pipeline and the world's first oil tanker in 1878, as well as the world's first railway tank cars in 1883. On 16 February 1898 Emanuel signed a licence agreement in Berlin with Rudolf Diesel, after having heard Di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Aktiebolag
(, " stock company") is the Swedish term for "limited company" or "corporation". When used in company names, it is abbreviated as "AB" (in Sweden), "Ab" (in Finland), or, rarely, "A/B" (dated), roughly equivalent to the abbreviations ''Corp.'', '' Ltd.'', and '' PLC''. The state authority responsible for registration of aktiebolag in Sweden is called the Swedish Companies Registration Office. Sweden All ''aktiebolag'' are divided into two categories: private limited companies and public limited companies. The name of a private limited company may not contain the word ''publikt'' ("public") and the name of a public limited company may not contain the word ''privat'' or ''pvt.'' ("private"). Public A public limited company (''publikt aktiebolag'') is legally denoted as "AB (publ.)" in Sweden or "Abp" in Finland. A Swedish public limited company must have a minimum share capital of 500,000 Swedish kronor and its shares can be offered to the public on the stock market. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Elsevier
Elsevier ( ) is a Dutch academic publishing company specializing in scientific, technical, and medical content. Its products include journals such as ''The Lancet'', ''Cell (journal), Cell'', the ScienceDirect collection of electronic journals, ''Trends (journals), Trends'', the ''Current Opinion (Elsevier), Current Opinion'' series, the online citation database Scopus, the SciVal tool for measuring research performance, the ClinicalKey search engine for clinicians, and the ClinicalPath evidence-based cancer care service. Elsevier's products and services include digital tools for Data management platform, data management, instruction, research analytics, and assessment. Elsevier is part of the RELX Group, known until 2015 as Reed Elsevier, a publicly traded company. According to RELX reports, in 2022 Elsevier published more than 600,000 articles annually in over 2,800 journals. As of 2018, its archives contained over 17 million documents and 40,000 Ebook, e-books, with over one b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Defunct Companies Of Sweden
{{Disambiguation ...
Defunct may refer to: * ''Defunct'' (video game), 2014 * Zombie process or defunct process, in Unix-like operating systems See also * * :Former entities * End-of-life product * Obsolescence Obsolescence is the process of becoming antiquated, out of date, old-fashioned, no longer in general use, or no longer useful, or the condition of being in such a state. When used in a biological sense, it means imperfect or rudimentary when comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Swedish Companies Established In 1916
Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by the Swedish language * Swedish people or Swedes, persons with a Swedish ancestral or ethnic identity ** A national or citizen of Sweden, see demographics of Sweden ** Culture of Sweden * Swedish cuisine See also * * Swedish Church (other) * Swedish Institute (other) * Swedish invasion (other) * Swedish Open (other) Swedish Open is a tennis tournament. Swedish Open may also refer to: * Swedish Open (badminton) * Swedish Open (table tennis) * Swedish Open (squash) * Swedish Open (darts) {{disambiguation ... {{disambig Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
1930 Disestablishments In Sweden
Year 193 ( CXCIII) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Sosius and Ericius (or, less frequently, year 946 ''Ab urbe condita''). The denomination 193 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * January 1 – Year of the Five Emperors: The Roman Senate chooses Publius Helvius Pertinax, against his will, to succeed the late Commodus as Emperor. Pertinax is forced to reorganize the handling of finances, which were wrecked under Commodus, to reestablish discipline in the Roman army, and to suspend the food programs established by Trajan, provoking the ire of the Praetorian Guard. * March 28 – Pertinax is assassinated by members of the Praetorian Guard, who storm the imperial palace. The Empire is auctioned off; Marcus Didius Julianus the highest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Companies Disestablished In 1930
A company, abbreviated as co., is a legal entity representing an association of legal people, whether natural, juridical or a mixture of both, with a specific objective. Company members share a common purpose and unite to achieve specific, declared goals. Over time, companies have evolved to have the following features: "separate legal personality, limited liability, transferable shares, investor ownership, and a managerial hierarchy". The company, as an entity, was created by the state which granted the privilege of incorporation. Companies take various forms, such as: * voluntary associations, which may include nonprofit organizations * business entities, whose aim is to generate sales, revenue, and profit * financial entities and banks * programs or educational institutions A company can be created as a legal person so that the company itself has limited liability as members perform or fail to discharge their duties according to the publicly declared incorporation pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
