Question

In _____________________ same keys are implemented for encrypting as well as decrypting the information.

(a) Symmetric Key Encryption

(b) Asymmetric Key Encryption

(c) Asymmetric Key Decryption

(d) Hash-based Key Encryption

The question was posed to me in an online interview.

This key question is from Types of Cryptography in section Cryptography in Security of Cyber Security

Answer 1

Correct answer is (a) Symmetric Key Encryption

Best explanation: Encryption-decryption in a cryptosystem is done in two ways. These are by Symmetric Key Encryption and by Asymmetric Key Encryption. In Symmetric Key Encryption, same keys are implemented for encrypting as well as decrypting the information.