The full title is: > National Security Agency (NSA) paper: Fifty Years of Mathematical Cryptanalysis (1937-1987), 1988 For context [1][2]: > Weirdly, this is

The full title is: > National Security Agency (NSA) paper: Fifty Years of Mathematical Cryptanalysis (1937-1987), 1988 For context [1][2]: > Weirdly, this is the second time the NSA has declassified the document. John Young got a copy in 2019. This one has a few less redactions. And nothing that was provided in 2019 was redacted here. [1] https://www.schneier.com/blog/archives/2025/05/the-nsas-fifty-years-of-mathematical-cryptanalysis-1937-1987.html https://www.schneier.com/blog/archives/2025/05/the-nsas-fift... [2] https://archive.org/details/NSAFiftyYearsOfMathematicalCryptanalyisis https://archive.org/details/NSAFiftyYearsOfMathematicalCrypt...