Question

In which of the following systems, encryption slower than decryption?

(a) elliptic curve cryptography

(b) parabolic curve cryptography

(c) symmetric cryptography

(d) antisymmetric cryptography

The question was asked in an internship interview.

My question is taken from Cryptography topic in section Number Theory and Cryptography of Discrete Mathematics

Answer 1

Correct option is (b) parabolic curve cryptography

Easy explanation: It is known that performing encryption using the public key takes more time than performing decryption using the private key in elliptic curve cryptography (ECC) and the key consists of 60 bytes.