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A cryptogram is a type of puzzle that consists of a short piece of encrypted text. [1] Generally the cipher used to encrypt the text is simple enough that the cryptogram can be solved by hand. Substitution ciphers where each letter is replaced by a different letter, number, or symbol are frequently used. To solve the puzzle, one must recover ...
The Cardan grille was invented as a method of secret writing. The word cryptography became the more familiar term for secret communications from the middle of the 17th century. Earlier, the word steganography was common. [citation needed] The other general term for secret writing was cypher - also spelt cipher. There is a modern distinction ...
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Copiale cipher: Solved in 2011 1843 "The Gold-Bug" cryptogram by Edgar Allan Poe: Solved (solution given within the short story) 1882 Debosnys cipher: Unsolved 1885 Beale ciphers: Partially solved (1 out of the 3 ciphertexts solved between 1845 and 1885) 1897 Dorabella Cipher: Unsolved 1903 "The Adventure of the Dancing Men" code by Arthur ...
In cryptography, Merkle's Puzzles is an early construction for a public-key cryptosystem, a protocol devised by Ralph Merkle in 1974 and published in 1978. It allows two parties to agree on a shared secret by exchanging messages, even if they have no secrets in common beforehand.
CRYPTOGRAPHY PUZZLES Celebrity Cipher "We need storytelling. Otherwise life just goes on and on, like the number pi." − Taiwanese filmmaker Ang Lee (Distributed by Andrews McMeel)
The Polybius square is also used as a basic cipher called the Polybius cipher. This cipher is quite insecure by modern standards, as it is a substitution cipher with characters being substituted for pairs of digits, which is easily broken through frequency analysis .
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