Question

In encryption, which of the following is the best text encoding technique?

(a) ASCII encoding

(b) Hex-encoding

(c) Unicode technique

(d) Base64 encoding

The question was posed to me in an interview for internship.

I need to ask this question from Cryptography in portion Number Theory and Cryptography of Discrete Mathematics

Answer 1

Correct option is (c) Unicode technique

Best explanation: Base64 and hex encoding scheme encode characters(or only bytes). First, we need to encode the characters as bytes and after that encode the bytes. In terms of compactness and simplicity, the best technique is Unicode scheme.