EFTA02415704.pdf

To: Jeffrey Epsteinfleevacationagmail.comj From: Charles L. Harper Jr. Sent Fri 11/12/2010 2:09:20 AM Subject one more interesting fact... FYI, an additional anniversary in cryptography in 2011: The renaissance polymath Leon Battista Alberti is often thought of as one of the "father of cryptography" in the West. His text on cryptography, De componendis Cifils, was published in 1466. Hence 2011 will be the 550th anniversary. {The history of the text was written by the cryptography bibliographer of the University of Pennsylvania, Charles J. Mendelson, in a 1947 article in Isis ( Mendelsohn Ch. J. Bibliographical Note on the "De Cifris' of LeoneBattista Albertill Isis.-1947.-N. 32.-P. 48-51. )} Also, see: Wikipedia entry on "The Alberti cipher." Allbest, Charles Harper EFTA_R1_01479311 EFTA02415704