TheCodeBreakers
The
Chase systems grant a fairly hermetic security; they are, besides,
relatively simple to operate. Yet cryptologic history shows no one ever
having used them, even though they are far superior to many systems
that have seen service.
Of the man who did explode the bomb that gouged new channels for
cryptology, little more is known than the bare outline provided by his
service record. This is complete if not detailed, for Friedrich W. Kasiski
spent his entire professional career as an officer in East Prussia's 33rd
Infantry Regiment. Born November 29, 1805, in what was then
Schlochau, West Prussia, and is now Czluchow, Poland, he enlisted in
the regiment at 17. He won his commission as a second lieutenant three
years later, in 1825—and did not budge out of that rank for 14 years.
But he remained a
first lieutenant only three years before he was promoted to captain
and company commander, a post he held for nine years
annaabi.ee 
