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A secret decoder ring (or secret decoder) is a device that allows one to decode a simple substitution cipher—or to encrypt a message by working in the opposite direction. [ 1 ] As inexpensive toys, secret decoders have often been used as promotional items by retailers, as well as radio and television programs, from the 1930s through to the ...
The pigpen cipher uses graphical symbols assigned according to a key similar to the above diagram. [1]The pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) [2] [3] is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid.
A Code-O-Graph-like secret decoder ring was featured in the 1983 movie A Christmas Story as an object of both joy and frustration. Richard Farina - Been Down So Long It Looks Like Up To Me (1966) - talks about it in Chapter one, listing it first in the list of the "only possessions and necessities of his life."
The Aristocrat Cipher is a type of monoalphabetic substitution cipher in which plaintext is replaced with ciphertext and encoded into assorted letters, numbers, and symbols based on a keyword. The formatting of these ciphers generally includes a title, letter frequency, keyword indicators, and the encoder's nom de plume . [ 1 ]
The History and Mystery of the World’s Greatest Ciphers from Ancient Egypt to Online Secret Societies is a 2017 book by American mathematician and cryptologist Craig P. Bauer. The book explores the history and challenges of various unsolved ciphers , ranging from ancient scripts to modern codes and puzzles.
The raw intercept was deciphered by either the Army or the Navy (depending on the day). Deciphering was usually successful as the cipher had been broken. Translation. Having obtained the plain text, in Latin letters, it was translated. Because the Navy had more Japanese-speaking officers, much of the burden of translation fell onto the Navy.
CBP’s National Targeting Center was created in the wake of the 9/11 terrorist attacks to help identify potential threats crossing the borders of the United States, whether people, drugs or weapons.
A series of three rotors from an Enigma machine, used by Germany during World War II Exploded view of an Enigma machine rotor:1-Notched ring, 2-Dot marking the position of the "A" contact, 3-Alphabet "tyre" or ring, 4-Electrical plate contacts, 5-Wire connections, 6-Spring-loaded pin contacts, 7-Spring-loaded ring adjustment pin, 8-Hub, through which fits the central axle, 9-Finger wheel, 10 ...