TheCodeBreakers
characteristic of cryptology's new maturity.
Another was the change in cryptanalysis itself. The science at last
outgrew the mode of operation that had
1
dominated it for 400 years. This was chamber analysis, in which a
single man wrestles with a single cryptogram alone in his room;
Rossignol epitomizes the genre. As cipher systems grew increasingly
complex, cryptanalysts relied more and more on special solutions, and so
they required many more messages for success than the bewigged
practitioners of chamber analysis would have ever thought necessary.
A third characteristic of the new maturity was the evolution of fields of
cryptanalytic specialization. Systems of secret communication had
ceased to be so few and so homogeneous that a single expert could
subdue them all. Their multiplicity and heterogeneity, plus the volume of
traffic in each, bred the specialist. This division of labor is as much a
sign of maturity in cryptology as it is in a society.
annaabi.ee 
