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  2. Caesar cipher - Wikipedia

    en.wikipedia.org/wiki/Caesar_cipher

    The Vigenère cipher uses a Caesar cipher with a different shift at each position in the text; the value of the shift is defined using a repeating keyword. [14] If the keyword is as long as the message, is chosen at random, never becomes known to anyone else, and is never reused, this is the one-time pad cipher, proven unbreakable. However the ...

  3. ROT13 - Wikipedia

    en.wikipedia.org/wiki/ROT13

    ROT13 is a special case of the Caesar cipher which was developed in ancient Rome, used by Julius Caesar in the 1st century BC. [1] An early entry on the Timeline of cryptography . ROT13 can be referred by "Rotate13", "rotate by 13 places", hyphenated "ROT-13" or sometimes by its autonym "EBG13".

  4. Cryptography - Wikipedia

    en.wikipedia.org/wiki/Cryptography

    A block cipher enciphers input in blocks of plaintext as opposed to individual characters, the input form used by a stream cipher. The Data Encryption Standard (DES) and the Advanced Encryption Standard (AES) are block cipher designs that have been designated cryptography standards by the US government (though DES's designation was finally ...

  5. History of cryptography - Wikipedia

    en.wikipedia.org/wiki/History_of_cryptography

    All of the electromechanical machines used in World War II were of this logical class, as were the Caesar and Atbash ciphers and essentially all cipher systems throughout history. The 'key' for a code is, of course, the codebook, which must likewise be distributed and kept secret, and so shares most of the same problems in practice.

  6. Encryption - Wikipedia

    en.wikipedia.org/wiki/Encryption

    A message encoded with this type of encryption could be decoded with a fixed number on the Caesar cipher. [3] Around 800 AD, Arab mathematician Al-Kindi developed the technique of frequency analysis – which was an attempt to crack ciphers systematically, including the Caesar cipher. [2]

  7. Puzzle solutions for Saturday, Aug. 31, 2024

    www.aol.com/puzzle-solutions-saturday-aug-31...

    Answer: The Model T cost $290 in 1924, which made it an automobile that people could − "A-FORD" TO OWN (Distributed by Tribune Content Agency) CRYPTOGRAPHY PUZZLES Celebrity Cipher

  8. Puzzle solutions for Wednesday, Oct. 23, 2024

    www.aol.com/puzzle-solutions-wednesday-oct-23...

    Celebrity Cipher "We need storytelling. Otherwise life just goes on and on, like the number pi." ... Online Crossword & Sudoku Puzzle Answers for 10/23/2024 - USA TODAY. Show comments. Advertisement.

  9. Cipher - Wikipedia

    en.wikipedia.org/wiki/Cipher

    Visual representation of how Caesar's Cipher works. The Caesar Cipher is one of the earliest known cryptographic systems. Julius Caesar used a cipher that shifts the letters in the alphabet in place by three and wrapping the remaining letters to the front to write to Marcus Tullius Cicero in approximately 50 BC. [citation needed]