: What a declassified Cold War code-breaking manual can teach us about solving ‘impossible’ puzzles #IndiaNEWS The United States National Security Agency – America’s premier signals intelligence
What a declassified Cold War code-breaking manual can teach us about solving ‘impossible’ puzzles #IndiaNEWS
The United States National Security Agency – America’s premier signals intelligence organisation – recently declassified a Cold War-era document about code-breaking.The 1977 book, written by cryptologist Lambros Callimahos, is the last in a trilogy called Military Cryptanalytics. It is significant in the history of cryptography, as it explains how to break all types of codes, including military codes, or puzzles – which are created solely for the purpose of a challenge.The first two parts of the trilogy were published publicly in the 1980s and covered solving well-known types of the classical cipher.But in 1992, the US Justice Department claimed releasing the third book could harm national security by revealing the NSA’s “code-breaking prowess?. It was finally released in December last year. Lessons for code-breakersA key part of Callimahop&H ]Y [وܞ XYۛ XܚXH [X]X YK X [HYYH[ܞ Y [[ [ۛۈY] [[[Y[HY[HZY [ [ وYYXYH[H ][ x&[ XH ^H[ XY Hۛ HY] ]Y ^H[[ Y][] ^H][ܙ[[YݙH] H[ܞ [ۈY] ܈ [ [YK[[XZ]Z[ [ HKXXZو]Y[ ][ HX؞H]K[ Y H^
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