|
Arnold Dumey
Arnold I. Dumey (1906-1995) was the co-inventor of the postal sorting machine and cryptanalyst first for Signals Intelligence Service, SIS and then NSA. During World War II he worked for the Army Signal Corps Charles Babbage Institute, University of Minnesota. and at Arlington Hall, headquarters of the US Army's Signals Intelligence Service (SIS) cryptography, under William and Elizabeth Friedman on breaking the German and Japanese codes. Dumey is also considered by some the inventor of Hash function, hashing. He published the first hashing paperDumey, A. I. (1956). ''Indexing for rapid random-access memory''. Computers and Automation 5 (12), 6-9 in 1956. Later, as a consultant, he co-invented the postal sorter and wrote the code that is used on the front of all USPS envelopes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptanalyst
Cryptanalysis (from the Greek ''kryptós'', "hidden", and ''analýein'', "to analyze") refers to the process of analyzing information systems in order to understand hidden aspects of the systems. Cryptanalysis is used to breach cryptographic security systems and gain access to the contents of encrypted messages, even if the cryptographic key is unknown. In addition to mathematical analysis of cryptographic algorithms, cryptanalysis includes the study of side-channel attacks that do not target weaknesses in the cryptographic algorithms themselves, but instead exploit weaknesses in their implementation. Even though the goal has been the same, the methods and techniques of cryptanalysis have changed drastically through the history of cryptography, adapting to increasing cryptographic complexity, ranging from the pen-and-paper methods of the past, through machines like the British Bombes and Colossus computers at Bletchley Park in World War II, to the mathematically advanced compu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |