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There's been a history of mathematical information used in cryptography produced by the NSA, for which it's later revealed, they had pre-developed an attack. Ex
by stcredzero 5y ago
There's been a history of mathematical information used in cryptography produced by the NSA, for which it's later revealed, they had pre-developed an attack. Example: the s-boxes of DES.
- foo92691 5y agoExcept NSA strengthened DES against this not-yet-known-to-the-public attack (differential cryptanalysis). https://en.wikipedia.org/wiki/Data_Encryption_Standard#NSA's_involvement_in_the_design https://en.wikipedia.org/wiki/Data_Encryption_Standard#NSA's... https://en.wikipedia.org/wiki/Differential_cryptanalysis#History https://en.wikipedia.org/wiki/Differential_cryptanalysis#His...
- stcredzero 5y agoWhile keeping DES to 56 bits, to keep the attack within reach.