Alberti cipher disc, artwork

Alberti cipher disc, artwork

V400/0163 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 50.5MB

Downloadable file size: 787.5KB

Price image Pricing

Please login to use the price calculator


Caption: Alberti cipher disc, artwork. This device was described in 1467 by the Italian cryptographer Leon Battista Alberti (1404-1472). The inner ring of lower-case letters is on a moveable disc that is rotated past the outer ring of upper-case letters and numbers. The position of the discs is determined by key letters included in the encoded message itself. Each ring has 24 characters. The outer ring is used for the uncoded message (the plaintext), and the inner ring is the corresponding letter in the coded message (the ciphertext). This is known as polyalphabetic substitution. The four numbers are used to encode references to phrases in a codebook.

Release details: Model release not required. Property release not required.

Keywords: 1400s, 1467, 15th century, alberti cipher disc, alberti formula, alberti's, alphabet, artwork, black-and-white, cipher, cipher disc, ciphertext, circle, circles, circular, code, codebook, coded, communication, communications, concentric, cryptography, cryptology, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, cypher, device, diagram, disc, discs, encode, encoded, encrypt, encrypted, encryption, encryption technique, european, historical, history, history of science, illustration, italian, language, leon battista alberti, letter, letters, lower-case, lowercase, mathematical, mathematics, mediaeval, medieval, message, messages, middle ages, mobilis, monochrome, numbers, phrases, plaintext, polyalphabetic substitution, ring, rings, round, secrecy, secret, securing, security, spy, spying, stabilis, system, text, upper-case, uppercase

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.