Rossignols
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The Rossignols, a family of French cryptographers and cryptanalysts, included Antoine Rossignol, Bonaventure Rossignol and Antoine-Bonaventure Rossignol. The family name means "nightingale" in French.
Antoine Rossignol.
Étienne Bazeries
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Étienne Bazeries was a French military cryptanalyst active between 1890 and the First World War. He is best known for developing the "Bazeries Cylinder", an improved version of Thomas Jefferson's ciph
Rossignols
…died, the Grand Cipher fell out of use. Without the key, and even the base concept, it remained uncrackable until the late 19th century, when Etienne Bazeries deciphered it after three years of work. Until this time, historians remained unable to read the coded diplomatic records of the time in the French…
Bazeries
Les Chiffres secrets dévoilés (or The Secret Numbers Unveiled )by Étienne Bazeries