TheCodeBreakers
The
great and widely felt need for secrecy awakened the latent interest in
ciphers that so many people seem to have, and kindled a new interest in
many others. Dozens of persons attempted to dream up their own
unbreakable ciphers. Their contributions enriched it with dozens of new
cipher systems.
As businessmen and the public used the telegraph more and more,
they found that their fears about lack of privacy were exaggerated. The
clerks dealt impersonally with the messages. The telegraph companies
respected their confidentiality. And commercial codes like Smith's, which
replaced words and phrases by single codewords or code-
numbers to cut telegraph tolls, afforded sufficient security for most
business transactions by simply precluding an at-sight comprehension of
the meaning. The brokers and traders soon realized that the main
advantage of these codes was their economy.
Government ministries used the telegraph, too. At first they must
annaabi.ee 
