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Hans Dobbertin
Hans Dobbertin (17 April, 1952 – 2 February, 2006) was a German cryptographer who is best known for his work on cryptanalysis of the MD4, MD5, and original RIPEMD hash functions, and for his part in the design of the new version of the RIPEMD hash function. He was a member of the German Federal Office for Information Security (Bundesamt für Sicherheit in der Informationstechnik, BSI) and professor at the Ruhr University in Bochum. Life Born in Herkensen in the north of Germany, Dobbertin was the son of Hans Dobbertin and Anneliese Kamp. His father was a teacher. He attended Eldagsen primary school from 1959, the Tellkampf School in Hanover from 1963 to 1969 and a modern language high school from 1969 to 1973. Dobbertin studied mathematics and received his doctorate in 1983 with his thesis on refinement monoids, Vaught monoids and Boolean algebras at the mathematics department at the University of Hanover. He completed his habilitation in Hanover in 1986 and moved to the F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Germany
West Germany was the common English name for the Federal Republic of Germany (FRG) from its formation on 23 May 1949 until German reunification, its reunification with East Germany on 3 October 1990. It is sometimes known as the Bonn Republic after its capital city of Bonn, or as the Second German Republic. During the Cold War, the western portion of Germany and the associated territory of West Berlin were parts of the Western Bloc. West Germany was formed as a political entity during the Allied occupation of Germany after World War II, established from 12 States of Germany, states formed in the three Allied zones of occupation held by the United States, the United Kingdom, and France. At the onset of the Cold War, Europe was divided between the Western and Eastern Bloc, Eastern blocs. Germany was divided into the two countries. Initially, West Germany claimed an exclusive mandate for all of Germany, representing itself as the sole democratically reorganised continuation of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bundesamt Für Sicherheit In Der Informationstechnik
The Federal Office for Information Security (, abbreviated as BSI) is the German upper-level federal agency in charge of managing computer and communication security for the German government. Its areas of expertise and responsibility include the security of computer applications, critical infrastructure protection, Internet security, cryptography, counter eavesdropping, certification of security products and the accreditation of security test laboratories. It is located in Bonn and as of 2024 has about 1,700 employees. Its current president, since 1 July 2023, is former business executive Claudia Plattner, who took over the presidency from Arne Schönbohm. BSI's predecessor was the cryptographic department of Germany's foreign intelligence agency ( BND). BSI still designs cryptographic algorithms such as the Libelle cipher and initiated the development of the Gpg4win cryptographic suite. Similar agencies The BSI has a similar role as the following agencies: * Computer Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1952 Births
Events January–February * January 26 – Cairo Fire, Black Saturday in Kingdom of Egypt, Egypt: Rioters burn Cairo's central business district, targeting British and upper-class Egyptian businesses. * February 6 ** Princess Elizabeth, Duchess of Edinburgh, becomes monarch of the United Kingdom of Great Britain and Northern Ireland and the British Dominions: Canada, Australia, New Zealand, Union of South Africa, South Africa, Dominion of Pakistan, Pakistan and Dominion of Ceylon, Ceylon. The princess, who is on a visit to Kenya when she hears of the death of her father, King George VI, aged 56, takes the regnal name Elizabeth II. ** In the United States, a Artificial heart, mechanical heart is used for the first time in a human patient. *February 7 – New York City announces its first crosswalk devices to be installed. * February 14–February 25, 25 – The 1952 Winter Olympics, Winter Olympics are held in Oslo, Norway. * February 15 – The State Funeral of King Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruhr University Bochum
The Ruhr University Bochum (, ) is a public research university located in the southern hills of the central Ruhr area, Bochum, Germany. It was founded in 1962 as the first new public university in Germany after World War II. Instruction began in 1965. The Ruhr-University Bochum is one of the largest universities in Germany and part of the Deutsche Forschungsgemeinschaft, the most important German research funding organization. The RUB was very successful in the Excellence Initiative of the German Federal and State Governments (2007), a competition between Germany's most prestigious universities. It was one of the few institutions left competing for the title of an "elite university", but did not succeed in the last round. There are currently nine universities in Germany that hold this title. The University of Bochum was one of the first universities in Germany to introduce international bachelor's and master's degrees, which replaced the traditional German Diplom and Magist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Information Security
Information security is the practice of protecting information by mitigating information risks. It is part of information risk management. It typically involves preventing or reducing the probability of unauthorized or inappropriate access to data or the unlawful use, Data breach, disclosure, disruption, deletion, corruption, modification, inspection, recording, or devaluation of information. It also involves actions intended to reduce the adverse impacts of such incidents. Protected information may take any form, e.g., electronic or physical, tangible (e.g., Document, paperwork), or intangible (e.g., knowledge). Information security's primary focus is the balanced protection of data confidentiality, data integrity, integrity, and data availability, availability (also known as the 'CIA' triad) while maintaining a focus on efficient policy implementation, all without hampering organization productivity. This is largely achieved through a structured risk management process. To stand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Klagenfurt
The University of Klagenfurt ( or ''Alpen-Adria-Universität Klagenfurt'', AAU) is a federal Austrian research university and the largest research and higher education institution in the States of Austria, state of Carinthia. It has its campus in Klagenfurt. Originally founded in 1970 and relaunched in 1993, the university today holds faculties of arts, humanities & education, management, economics & law, social sciences, and Technology, technical sciences. It is listed in the Academic Ranking of World Universities, ARWU, Times Higher Education World University Rankings, THE, and QS World University Rankings, QS global rankings and held rank 48 worldwide in THE's ''Young University Rankings'' 2021. The university has defined three research priority areas, ''Social Ecology'' (until 2018, transferred to University of Natural Resources and Life Sciences, Vienna, BOKU Vienna), ''Networked and Autonomous Systems'', and ''Multiple Perspectives in Optimization'', with the former spawnin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptology EPrint Archive
The Cryptology ePrint Archive is an electronic archive (eprint) of new results in the field of cryptography, maintained by the International Association for Cryptologic Research. It contains articles covering many of the most recent advances in cryptography, that did not necessarily undergo any refereeing process. See also * arXiv arXiv (pronounced as "archive"—the X represents the Chi (letter), Greek letter chi ⟨χ⟩) is an open-access repository of electronic preprints and postprints (known as e-prints) approved for posting after moderation, but not Scholarly pee ... * Electronic Colloquium on Computational Complexity External links * References Cryptography journals Publications with year of establishment missing Eprint archives Open-access archives {{compu-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habilitation
Habilitation is the highest university degree, or the procedure by which it is achieved, in Germany, France, Italy, Poland and some other European and non-English-speaking countries. The candidate fulfills a university's set criteria of excellence in research, teaching, and further education, which usually includes a dissertation. The degree, sometimes abbreviated ''Dr. habil''. (), ''dr hab.'' (), or ''D.Sc.'' ('' Doctor of Sciences'' in Russia and some CIS countries), is often a qualification for full professorship in those countries. In German-speaking countries it allows the degree holder to bear the title ''PD'' (for ). In a number of countries there exists an academic post of docent, appointment to which often requires such a qualification. The degree conferral is usually accompanied by a public oral defence event (a lecture or a colloquium) with one or more opponents. Habilitation is usually awarded 5–15 years after a PhD degree or its equivalent. Achieving this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Hanover
A university () is an institution of tertiary education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase , which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law and notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde''A History of the University in Europe: Volume 1, Universities in the Middl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hash Function
A hash function is any Function (mathematics), function that can be used to map data (computing), data of arbitrary size to fixed-size values, though there are some hash functions that support variable-length output. The values returned by a hash function are called ''hash values'', ''hash codes'', (''hash/message'') ''digests'', or simply ''hashes''. The values are usually used to index a fixed-size table called a ''hash table''. Use of a hash function to index a hash table is called ''hashing'' or ''scatter-storage addressing''. Hash functions and their associated hash tables are used in data storage and retrieval applications to access data in a small and nearly constant time per retrieval. They require an amount of storage space only fractionally greater than the total space required for the data or records themselves. Hashing is a computationally- and storage-space-efficient form of data access that avoids the non-constant access time of ordered and unordered lists and s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bochum
Bochum (, ; ; ; ) is a city in North Rhine-Westphalia. With a population of 372,348 (April 2023), it is the sixth-largest city (after Cologne, Düsseldorf, Dortmund, Essen and Duisburg) in North Rhine-Westphalia, the most populous German federal state, and the 16th-largest city in Germany. On the Ruhr Heights () hill chain, between the rivers Ruhr to the south and Emscher to the north (tributaries of the Rhine), it is the second largest city of Westphalia after Dortmund, and the fourth largest city of the Ruhr after Dortmund, Essen and Duisburg. It lies at the centre of the Ruhr, Germany's largest urban area, in the Rhine-Ruhr Metropolitan Region, the second biggest metropolitan region by GDP in the European Union, and belongs to the region of Arnsberg. There are nine institutions of higher education in the city, most notably the Ruhr University Bochum (), one of the ten largest universities in Germany, and the Bochum University of Applied Sciences (). Geography Geograph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RIPEMD
RIPEMD (RIPE Message Digest) is a family of cryptographic hash functions developed in 1992 (the original RIPEMD) and 1996 (other variants). There are five functions in the family: RIPEMD, RIPEMD-128, RIPEMD-160, RIPEMD-256, and RIPEMD-320, of which RIPEMD-160 is the most common. The original RIPEMD, as well as RIPEMD-128, is not considered secure because 128-bit result is too small and also (for the original RIPEMD) because of design weaknesses. The 256- and 320-bit versions of RIPEMD provide the same level of security as RIPEMD-128 and RIPEMD-160, respectively; they are designed for applications where the security level is sufficient but longer hash result is necessary. While RIPEMD functions are less popular than SHA-1 and SHA-2, they are used, among others, in Bitcoin and other cryptocurrencies based on Bitcoin. History The original RIPEMD function was designed in the framework of the EU project RIPE ( RACE Integrity Primitives Evaluation) in 1992. Its design was based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
