Search results
Results From The WOW.Com Content Network
A cipher is an algorithm for converting information into code or ciphertext, which can be decrypted with a key. Learn about the origin, evolution and classification of ciphers, from ancient to modern methods, and their applications in cryptography.
A code is a method of encrypting messages at the level of meaning, such as words or phrases. Learn about different types of codes, such as one- and two-part codes, one-time codes, and idiot codes, and their applications and drawbacks.
A substitution cipher is a method of encrypting in which units of plaintext are replaced with ciphertext, using a key. A monoalphabetic cipher uses fixed substitution over the entire message, while a polyalphabetic cipher uses multiple substitutions at different positions.
Cryptography is the practice and study of techniques for secure communication in the presence of adversarial behavior. Learn about the core concepts, terminology, and history of cryptography, as well as its modern applications in computer science, information security, and digital media.
A Caesar cipher is a simple encryption technique that replaces each letter in the plaintext with a letter some fixed number of places down the alphabet. It is named after Julius Caesar, who used it in his private correspondence, and has various applications and variations.
A hidden message is information that is not immediately noticeable, and that must be discovered or uncovered and interpreted before it can be known. Learn about different techniques of creating hidden messages, such as backmasking, phonetic reversal, and steganography, and see some examples of legitimate and controversial uses.
The Copiale cipher is a 1730s encrypted manuscript by a German oculist order, or Oculists, who used sight as a metaphor for knowledge. The cipher was decrypted in 2011 with computer assistance and reveals an initiation ceremony and a connection to Freemasonry.
The Beale ciphers are three encrypted messages allegedly left by Thomas J. Beale, who buried a fortune of gold, silver and jewels in Virginia in 1820. Only one cipher has been solved, and the story is doubted by many as a fiction by James B. Ward, a Freemason.