Card catalog (cryptology)
The card catalog, or "catalog of characteristics," in cryptography, was a system designed by Polish Cipher Bureau mathematician-cryptologist Marian Rejewski, and first completed about 1935 or 1936, to facilitate decrypting German Enigma ciphers.
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| Locations |
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| Personnel |
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Chief
Gwido Langer Deputy Chief
Chief of Radio Intelligence Chief of German Section Maksymilian Ciężki German Section cryptologists
Chief of Russian Section
Jan Graliński Russian Section cryptologist
Piotr Smoleński |
| The Enigma cipher machine |
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| Enigma machine |
| Breaking Enigma |
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