engineering recuitment NIC NIELIT Scientist B 2023 Mock Test Computer Networks Network Security Cryptography
Which of the following statements are true?
I. An asymmetric key cryptosystem uses the private and public keys of the receiver
II. A digital signature uses the private and public keys of the sender.
III. Symmetric-key cryptosystems are very inefficient when dealing with long messages.1
I
2
I and II
3
II and III
4
I and III