# GATE Questions & Answers of Digital Signature and Certificate

## What is the Weightage of Digital Signature and Certificate in GATE Exam?

Total 1 Questions have been asked from Digital Signature and Certificate topic of Computer Networks subject in previous GATE papers. Average marks 2.00.

Consider that B wants to send a message m  that is digitally signed to A. Let the pair of private and public keys for A and B be denoted by $K_x^-$ and $K_x^+$ for $x=A,\;B$, respectively. Let $K_x$(m) represent the operation of encrypting $m$ withakey $K_x$ and $H(m)$ represent the message digest. Which one of the following indicates the CORRECT way of sending the message $m$ along with the digital signature to A?