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The Rutherford Journal - Colossus: Breaking the German 'Tunny' Code
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日期:2024-04-28
X+W D+Z I+H V+I S+/ D+N F+R E+9. This uncovers the letters COLOSSUS. The Tunny machine in fact produces the key-stream by adding together two other letter streams, called at B.P. the psi-stream and the chi-stream (from the Greek letters psi (ψ) and chi .....看更多