AWhat changed
Systematized requirements for military cryptography, including the principle that a cryptosystem should remain secure even when everything about the system except the key is public knowledge.
Scientific scope
The record is the exact 1883 French work digitized by the Bibliothèque nationale de France, extracted from the Journal des sciences militaires. Later restatements, modern threat models, computational security definitions and individual cipher designs remain separate.
Evidence
The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the exact 1883 French work digitized by the Bibliothèque nationale de France, extracted from the Journal des sciences militaires. Later restatements, modern threat models, computational security definitions and individual cipher designs remain separate.
Contributors
- Auguste Kerckhoffs · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
- BnF catalogue record for La Cryptographie militaire
- Gallica digitization of La Cryptographie militaire
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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