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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 or number are frequently used. To solve the puzzle, one must recover the ...
Kryptos is a distributed 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. [ 1] Since its dedication on November 3, 1990, there has been much speculation about the meaning of the four encrypted messages it bears.
Merkle's Puzzles. 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.
A 20-year old cryptographic puzzle — originally pegged to take 35 years to be completed — has finally been solved by a self-taught Belgian programmer. After 20 years, the puzzle designed by ...
Cicada 3301 is the name given to three sets of puzzles posted under the name "3301" online between 2012 and 2014. The first puzzle started on January 4, 2012, [ 1] on 4chan [ 2] and ran for nearly a month. A second round of puzzles began one year later on January 4, 2013, and then a third round following the confirmation of a fresh clue posted ...
Pigpen cipher. 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 ...
CRYPTOGRAPHY PUZZLES Celebrity Cipher "I'm the person who stops and gives any homeless person any money that they want." − Shannon Doherty (Distributed by Andrews McMeel) Cryptoquote.
ISBN. 978-1-40088-479-7. Unsolved! 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.
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