About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 74. Chapters: Classical ciphers, Enigma machine, Pig Latin, Substitution cipher, RC4, Atbash, Caesar cipher, Vigenere cipher, ROT13, Transposition cipher, Poem code, Autokey cipher, Scytale, Polyalphabetic cipher, Tabula recta, Lorenz cipher, Playfair cipher, Mirror writing, ryabha a numeration, A5/1, High-bandwidth Digital Content Protection, Grille, Hill cipher, VIC cipher, Affine cipher, ADFGVX cipher, Running key cipher, Content Scramble System, Four-square cipher, Thomas Brierley, Book cipher, Pigpen cipher, Two-square cipher, Phelix, Alberti cipher, Nihilist cipher, E0, Great Cipher, Tap code, Arnold Cipher, Straddling checkerboard, Trifid cipher, Polybius square, DRYAD, Dvorak encoding, M-94, Null cipher, Reservehandverfahren, Rail Fence Cipher, Permutation cipher, A5/2, Alphabetum Kaldeorum, Bifid cipher, Wadsworth's cipher, Keyword cipher, Reihenschieber, SOBER-128, Templar cipher, Vatsyayana cipher. Excerpt: An Enigma machine is any of a family of related electro-mechanical rotor machines used for the encryption and decryption of secret messages. The first Enigma was invented by German engineer Arthur Scherbius at the end of World War I. This model and its variants were used commercially from the early 1920s, and adopted by military and government services of several countries - most notably by Nazi Germany before and during World War II. Several different Enigma models were produced, but the German military models are the ones most commonly discussed. In December 1932, the Polish Cipher Bureau first broke Germany's Enigma ciphers. Five weeks before the outbreak of World War II, on 25 July 1939, in Warsaw, the Polish Cipher Bureau gave Enigma-decryption techniques and equipment to French and British military intelligence. Thanks to this, during the war, Allied codebreakers were able to decrypt a vast number of messages...
