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The following Python code can be used to encrypt text with the affine cipher: # Prints a transposition table for an affine cipher. def affine ( a : int , b : int , s : str ): import string D = dict ( enumerate ( string . ascii_lowercase , start = 0 )) E = { v : k for k , v in D . items ()} size = len ( string . ascii_lowercase ) ret = "" print ...
The Secret is a treasure hunt created by Byron Preiss. The hunt involves a search for twelve treasure boxes, the clues to which were provided in a book written by Preiss in 1982, also called The Secret. These boxes were buried at secret locations in cities across the United States and Canada that symbolically represent events and peoples that ...
President John F. Kennedy, codename "Lancer" with First Lady Jacqueline Kennedy, codename "Lace". The United States Secret Service uses code names for U.S. presidents, first ladies, and other prominent persons and locations. [1] The use of such names was originally for security purposes and dates to a time when sensitive electronic ...
The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by Nazi Germany during World War II, in all branches of the German military. The Enigma machine was considered so secure that it was used to encipher the most top ...
A Woman Hid This Secret Code in Her Silk Dress in 1888—and Codebreakers Just Solved It. Tim Newcomb. January 2, 2024 at 10:46 AM. Breaking the 1880s Silk Dress Cryptogram Courtesy of Sara Rivers ...
List of HTTP status codes - Wikipediawikipedia.org
The United States has three levels of classification: Confidential, Secret, and Top Secret. Each level of classification indicates an increasing degree of sensitivity. Thus, if one holds a Top Secret security clearance, one is allowed to handle information up to the level of Top Secret, including Secret and Confidential information. If one ...
Capture the Flag (CTF) is a cybersecurity competition that is used to test and develop computer security skills. It was first developed in 1996 at DEF CON, the largest cybersecurity conference in the United States which is hosted annually in Las Vegas, Nevada. [2] The conference hosts a weekend of cybersecurity competitions, including their ...
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. The example key shows one way the letters can be assigned to the grid.
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 ...
Code (cryptography) A portion of the "Zimmermann Telegram" as decrypted by British Naval Intelligence codebreakers. The word Arizona was not in the German codebook and had therefore to be split into phonetic syllables. Partially burnt pages from a World War II Soviet KGB two-part codebook. In cryptology, a code is a method used to encrypt a ...