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Le Chiffre de la Marine française dans la Grande Guerre : d'un service dépendant à un organe autonome et efficace du renseignement technique

Abstract : At the beginning of World War One, the French Navy's intelligence service was quite basic. The 1st Section of the Navy General Staff (Etat-Major Général de la Marine, EMG) supervised and coordinated the collection and analysis of naval intelligence, but its resources as regards human intelligence (espionage) and signals intelligence (interception and cryptanalysis) were insufficient: funds, equipment and men were lacking. We propose to study the example of the Navy Cipher service (Chiffre de la Marine), whose aim was to protect French and allied naval communications, as well as to study intercepted enemy messages for tactical and operational intelligence purposes. The evolution of this signals intelligence service during the war illustrates a little-known aspect of the transformation of French naval intelligence during the Great War.
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https://hal.archives-ouvertes.fr/hal-03190189
Contributor : Agathe Couderc <>
Submitted on : Tuesday, April 6, 2021 - 10:05:34 AM
Last modification on : Friday, April 9, 2021 - 3:32:01 AM

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  • HAL Id : hal-03190189, version 1

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Agathe Couderc. Le Chiffre de la Marine française dans la Grande Guerre : d'un service dépendant à un organe autonome et efficace du renseignement technique. Études marines, 2018, pp.83-92. ⟨hal-03190189⟩

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