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Blaise de Vigenère

Diplomat from France

Blaise de Vigenère (April 5, 1523–1596) was a French diplomat and cryptographer. The Vigenère cipher is so named due to the cipher being incorrectly attributed to him in the 19th century. Vigenère (French pronunciation: [viʒnɛːʁ]) was born in the village of Saint-Pourçain. At age 17 he entered the diplomatic service, and remained there for 30 years, retiring in 1570. Five years into his career he was sent to the Diet of Worms as a very junior secretary. At age 24, he entered the service of the Duke of Nevers. In 1549 he visited Rome on a two-year diplomatic mission, and again in 1566. On both trips, he came in contact both with books on cryptography and cryptologists themselves. When Vigenère retired aged 47, he donated his 1,000 livres a year income to the poor in Paris. He married a Marie Varé. In his retirement, he was author of over twenty books including, In Traicté des Chiffres he described an autokey cipher he had invented, it was the first cipher of this type after Bellaso not to be trivially breakable. He had a considerable interest in alchemy and this was the subject of Traicté du Feu et du Sel (A Discourse of Fire and Salt). Vigenère died of throat cancer in 1596.  ( Wikipedia article )

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Personal facts

Known as
Blaise de Vigenere
Date of birth
1523-04-05
Place of birth
Saint-Pourçain AOC
Nationality
France
Profession
Diplomat

Death

Date of death
1596
Cause of death
Throat cancer

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