"roster" - 1 õppematerjal

TheCodeBreakers

The imitation “trigonometric” cipher of red agents in Iran Mobasheri stubbornly insisted that the system could not be broken, but just as the colonel was leaving the cell Mobasheri's appreciation for an intelligent analysis broke through, and he admitted that the cryptanalyst was on the right track. On September 3, as an airplane was about to fly copies of the trigonometric notebook to an ally's cryptanalysts, the two haggard colonels cracked Mobasheri's cipher. The roster proved to be as detailed as an official army register in describing the officers, making identification easy. But it was so extensive that it took several days to decrypt it and locate the conspirators. A week later all 400 were arrested. This enormous conspiracy, Iranian security  376 THE CODEBREAKKKS police discovered, had not only obtained detailed information on the strength and disposition of Iran's entire armed forces, but had wormed