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A hidden message is information that is not immediately noticeable, and that must be discovered or uncovered and interpreted before it can be known. Hidden messages include backwards audio messages, hidden visual messages and symbolic or cryptic codes such as a crossword or cipher .
The same image viewed by white, blue, green, and red lights reveals different hidden numbers. Steganography (/ ˌ s t ɛ ɡ ə ˈ n ɒ ɡ r ə f i / ⓘ STEG-ə-NOG-rə-fee) is the practice of representing information within another message or physical object, in such a manner that the presence of the concealed information would not be evident to an unsuspecting person's examination.
Kryptos is a sculpture by the American artist Jim Sanborn located on the grounds of the Central Intelligence Agency (CIA) headquarters, the George Bush Center for Intelligence in Langley, Virginia.
However the problems involved in using a random key as long as the message make the one-time pad difficult to use in practice. Keywords shorter than the message (e.g., " Complete Victory " used by the Confederacy during the American Civil War ), introduce a cyclic pattern that might be detected with a statistically advanced version of frequency ...
Enigma machine messages Solved (broken by Polish and Allied cryptographers between 1932 and 1945) 1939 D'Agapeyeff cipher: Unsolved 1939–1945 Purple cipher machine messages Solved (broken by Allied cryptographers in 1940) 1941 Lorenz SZ42 machine cipher messages Solved (broken by Allied cryptographers in 1942) 1944 Pigeon NURP 40 TW 194 ...
Hours before he passed away, Charlie Murphy tweeted a cryptic message that will break your heart. The comedian lost his battle with leukemia on Wednesday at the age of 57, but at 10 p.m. the night ...
The Cure appear to be teasing the forthcoming release of what would be their first album in 16 years.. After a long wait, fans received postcards this week that seemingly revealed both the new ...
The partially decomposed body of Ricky McCormick was discovered in a field in St. Charles County, Missouri on June 30, 1999. Sheriffs found two garbled hand-written notes – apparently written in secret code – in the victim's pockets, and these were handed over to the FBI for further investigation.