Answer Posted / supriya
cryptography is basically an art of manipulating messages to
make them secure.
cryptography is basically used decrypt the message by using
some key that is and plain text is converted in cipher text
it is mainly used for security
u can take an example in which
Alice wants to transmit a megs to bob the data or message is
confidential...
and a intruder reads the message the at this place if the
message was encrypted the message would not be read by the
intruder and so the need of cryptography arised
2 types of cryptography
symmetric and asymmetric key cryptography
Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
Who issues certificates and how?
How can signatures remain valid beyond the expiration dates of their keys, or, How do you verify a 20-year-old signature?
What are the shrinking and self-shrinking generators?
What is Mondex ?
Can users of rsa run out of distinct primes?
What are lattice-based cryptosystems ?
Can DES be exported from the U.S.?
How is rsa used for authentication in practice? What are rsa digital signatures?
Is DSS secure?
What is SecurPC ?
What if users of RSA run out of distinct primes?
What is authentication? What is a digital signature?
Is RSA a de facto standard? Why is a de facto standard important?
What is seal?
What is a stream cipher?