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. |
Second, Colossus was not a general-purpose machine, being designed for a specific cryptanalytic task involving counting and Boolean operations. |
The Navy sent over 600 WAVES to Dayton, Ohio, to help build and train on cryptanalytic machines called Bombes. |
For some time it had been apparent that the DES, though never broken in the usual cryptanalytic sense, was no longer secure. |
Obviously, there is no counterpart to this kind of cryptanalytic attack in single-key systems. |