You are probably following an old link. To get to the new page structure, you may click on the pad-lock below.   PRESENTATION Security Show   Privacy   CHILDREN UNIVERSITY Children university   Elemtary schools   Schools   INFORMATION Speaker   Press   Videos   Pictures   Documentation (3MB)   Dates & Rates   TV SHOWS Bluetooth SAT.1   Mobile costs SAT.1   Callnumber fake SAT.1   Photo-Handy RTL   Handykosten Ausland   Immobilien Abzocke   Rattanmöbel Abzocke   CRYPTOGRAPHY Books   Authors   Crypto machines   Internet-Links   I'm looking for ...   Cryptologia CIPHERS ACA Birthday Cipher Alberti disk ATBASCH Dada Urka   Playfair   Postcards Vigenère CRYPTOBITS CryptoBit I CryptoBit II CryptoBit III CryptoBit IV CryptoBit V PRIVACY 17389 Anklam Google Street View APPLICATIONS and TIPS PIN code   Passwort-o-mat   Password guessing CONTACT Contact Guestbook   The Alberti cipher disk   Leon Battista Alberti, the "father of western cryptography" (David Kahn in CodeBreakers) the polyalphabetic substitution and offered one of the first mechanical crypto devices as well - the cipher disk.   Originally made of two copper plates, the cipher disk is a beautiful and easy to assemble crypto machine that can be found in various materials. Wood, metall or even paper.     Cildren may easily build their own cipher wheel. Just print out one of the following pattern. There are two versions. One for self labeling and one with all characters already printed in.   Alberti cipher wheel empty Alberti cipher wheel labeled

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