High Quality Content by WIKIPEDIA articles! In cryptography, a rotor machine is an electro-mechanical device used for encrypting and decrypting secret messages. Rotor machines were the cryptographic state-of-the-art for a brief but prominent period of history; they were in widespread use in the 1930s–1950s. The most famous example is the Enigma machine. The primary component is a set of rotors, also termed wheels or drums, which are rotating disks with an array of electrical contacts on either...
High Quality Content by WIKIPEDIA articles! In cryptography, a rotor machine is an electro-mechanical device used for encrypting and decrypting secret messages. Rotor machines were the cryptographic state-of-the-art for a brief but prominent period of history; they were in widespread use in the 1930s–1950s. The most famous example is the Enigma machine. The primary component is a set of rotors, also termed wheels or drums, which are rotating disks with an array of electrical contacts on either side. The wiring between the contacts implements a fixed substitution of letters, scrambling them in some complex fashion.
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Эта книга — «гимнастический зал» для развития мозга ребенка. Здесь собраны увлекательные головоломки, тренирующие внимание и память, пространственное и логическое мышление, математические навыки, умственные способности. Главная особенность книги — наличие заданий на развитие оперативной памяти и дивергентного мышления, которое отвечает за креативность. Задания разработаны командой...
Издательство:
Манн, Иванов и Фербер
Дата выхода: октябрь 2017
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