“Second, Colossus was not a general-purpose machine, being designed for a specific cryptanalytic task involving counting and Boolean operations.”

“We might have an amazing new cryptanalytic technique, but we don't know if there's an error in the analysis, and there's no way to test the technique empirically.”

“Sure, there are always new developments in cryptanalysis, but we've never seen an operationally useful cryptanalytic attack against a standard algorithm.”

“The cryptanalytical approach is also heavily determined by the structure of a block cipher.”

“The predominant emphasis of cryptanalytical work was directed towards the solution of encrypted Japanese traffic.”

“The link between both cryptanalytical and nuclear design applications and high-performance computing goes back to the very first computers.”