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| | The Alberti Cipher |
 | | Alberti, who is also known for his work in architecture, painting and writing, particularly his insights into perspective influenced subsequent painters of his era, but he is most widely recognized as the father of Western Cryptology. |
 | | Interestingly, Alberti's studies involving cryptology were only a passing interest, at the suggestion of his friend, and secretary to the pope, Dato, Alberti decided to investigate encryption, and eventually published a book on the subject, despite its lack of relevance to his architecture and painting. |
 | | Alberti's 20 character Latin alphabet can be seen around the outer ring of the discs, the four numbers at the end being, again, used in reference to a codebook containing preselected phrases. |
| starbase.trincoll.edu /~crypto/historical/alberti.html (1700 words) |
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