Question

In public key cryptography, a key that decrypts the message.

(a) public key

(b) unique key

(c) private key

(d) security key

I have been asked this question in quiz.

This interesting question is from Cryptography in section Information Technology of Computer Fundamentals

Answer 1

Correct answer is (c) private key

For explanation: Public key cryptography has 2 keys. They are private key and a public key. The public key encrypts the message. The private key decrypts the message.