最終更新日：2024/07/31

(historical, cryptography, informal) A government or royal court's cryptanalyst department.

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black chamber

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black chamber

noun

(historical, cryptography, informal) A government or royal court's cryptanalyst department.

The black chamber was a secret room used for decoding messages during World War II.

意味（1）

(historical, cryptography, informal) A government or royal court's cryptanalyst department.