CRYPTOGRAPHY

Cryptography is the science of keeping data secure .
When the Internet provides essential communication
between tens of millions of people and is beign increasingly
used as tool for commerce, security becomes tremendously
important issue to deal with it.
In the age of Universal electronic connectivity,Viruses
and hackers, of electronic eavesdropping and electronic fraud ,
network security has assumed increasing importance.
Cryptography is an ancient technology that has matured rapidly
in the last twenty years such that, despite its age, it is increasingly
becoming a fault line for the schism between the individual need
to protect one''s privacy and the state''s need to protect both
individuals and themselves.
The capabilities of today''s Cryptosystems present a new source
of power for both governments and individuals: individuals have
enhanced powers to keep their secrets safe from the individual .
The power of modern encryption creates a struggle where both
the individual and the state are working to limit the technological
power of the other.