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theoretically unbreakable

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  • Cryptography — Secret code redirects here. For the Aya Kamiki album, see Secret Code. Symmetric key cryptography, where the same key is used both for encryption and decryption …   Wikipedia

  • Vigenère cipher — The Vigenère cipher is a method of encrypting alphabetic text by using a series of different Caesar ciphers based on the letters of a keyword. It is a simple form of polyalphabetic substitution.The Vigenère (pronEng|ˌviːdʒɪˈnɛəɹ, veedj ih nair )… …   Wikipedia

  • Unicity distance — is a term used in cryptography referring to the length of an original ciphertext needed to break the cipher by reducing the number of possible spurious keys to zero in a brute force attack. That is, after trying every possible key, there should… …   Wikipedia

  • Claude Shannon — Claude Elwood Shannon (1916 2001) Born April …   Wikipedia

  • Cipher — For other uses, see Cipher (disambiguation). Edward Larsson s rune cipher resembling that found on the Kensington Runestone. Also includes runically unrelated blackletter writing style and pigpen cipher. In cryptography, a cipher (or cypher) is… …   Wikipedia

  • Auguste Kerckhoffs — Born 19 January 1835(1835 01 19) Nuth, Netherlands …   Wikipedia

  • Communication theory — is a field of information and mathematics that studies the technical process of information[1] and the human process of human communication.[2] Contents 1 History 1.1 Origins …   Wikipedia

  • Communication Theory of Secrecy Systems — is a paper published in 1949 by Claude Shannon discussing cryptography from the viewpoint of information theory. It is one of the foundational treatments (arguably the foundational treatment) of modern cryptography. It is also a proof that all… …   Wikipedia

  • One time key — A one time key is a cryptographic key used once and then discarded, used either to authenticate or encrypt data.If a key is used only once and is truly random, it is theoretically unbreakable …   Wikipedia

  • Signals intelligence in modern history — This article is a subset article of the article Signals intelligence, which addresses the unifying conceptual and technical factors and common technologies in this intelligence discipline. This article deals with signals intelligence in the… …   Wikipedia

  • теоретически невскрываемый — — [http://www.rfcmd.ru/glossword/1.8/index.php?a=index&d=4735] Тематики защита информации EN theoretically unbreakable …   Справочник технического переводчика

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