GATE 2016 CS (CS2) – Question 33

Computer Networks · Principles of Layering · 1 mark · Multiple choice

Anarkali digitally signs a message and sends it to Salim. What does Salim need to verify the signature?

Anarkali’s public key
Salim’s public key
Salim’s private key
Anarkali’s private key

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Show answer and explanation

Correct answer: (A) Anarkali’s public key

Explanation

A signature is generated using the signer’s private key and verified using the corresponding public key. Anarkali is the signer, so Salim uses Anarkali’s public key, A. Her private key must remain secret.

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