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NSA

ROCHFORDS CIPHER

DOCID: 3164703Rochford's Cipher: A Discovery inConfederate CryptographyBY DAVID W. GADDYUnclassifiedUNCLASSIFIEDDetails the decryption and historical background of a Confederatemessage in a grille cipher system (Rochford 's Cipher) previously un-known to the cryptography of the U.S. Ciuil War period.The " Mason and Slidell affair" played a significant role in Anglo-American relations during the American Civil War.{l] Captured onthe high seas by an energetic U.S...
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