cipher signal

См. также в других словарях:

• signal code — cipher, secret code for sending messages …   English contemporary dictionary

• Signal Corps in the American Civil War — U.S. Army Signal Corps station on Elk Mountain, Maryland, overlooking the Antietam battlefield. The Signal Corps in the American Civil War comprised two organizations: the U.S. Army Signal Corps, which began with the appointment of Major Albert J …   Wikipedia

• Cipher disk — The Union Cipher Disk from the American Civil War was 3.75 inches (95 mm) in diameter and made of light yellow heavy card stock. It consisted of two concentric disks of unequal size revolving on a central pivot. The disks were divided along their …   Wikipedia

• Null cipher — A null cipher is an ancient form of encryption where the plaintext is mixed with a large amount of non cipher material. It would today be regarded as a simple form of steganography. Null ciphers can also be used to hide ciphertext, as part of a… …   Wikipedia

• Alberti cipher — The Alberti Cipher was one of the first polyalphabetic ciphers. Leon Battista Alberti Created in the 15th century (1466/67) by Leon Battista Alberti, it was the peak of cryptography at that time.Its inventor was Leon Battista Alberti, an… …   Wikipedia

• Reflector (cipher machine) — A reflector, in cryptology, is a component of some rotor cipher machines, such as the Enigma machine, that sends electrical impulses that have reached it from the machine s rotors, back in reverse order through those rotors.Note: The greyed out… …   Wikipedia

• spoofing —    The retransmission, alteration and interception of a cipher signal or data …   IT glossary of terms, acronyms and abbreviations

• cryptology — cryptologist, n. cryptologic /krip tl oj ik/, cryptological, adj. /krip tol euh jee/, n. 1. cryptography. 2. the science and study of cryptanalysis and cryptography. [1635 45; < NL cryptologia. See CRYPTO , LOGY] * * * Introduction …   Universalium

• Cryptanalysis of the Enigma — enabled the western Allies in World War II to read substantial amounts of secret Morse coded radio communications of the Axis powers that had been enciphered using Enigma machines. This yielded military intelligence which, along with that from… …   Wikipedia

• Фридман, Уильям Фредерик — Уильям Фредерик Фридман William Frederick Friedman …   Википедия

• Enigma (Maschine) — Markenschild der ENIGMA Die deutsche Schlüsselmaschine …   Deutsch Wikipedia