50 Years of Mathematical Cryptanalysis Inside the NSA

50 Years of Mathematical Cryptanalysis Inside the NSA

May 20, 2025 | CIA/FBI/NSA Files

Cryptanalysis - the science of cracking secret codes - has always been an arms race between mathematicians and machine designers. A newly declassified NSA document, titled "Fifty Years of Mathematical Cryptanalysis (1937–1987)", provides a rare and sweeping look at...