Discussion
Anarkali digitally signs a message and sends it to Salim. Verification of the signature by Salim requires
Answer: A
Salim needs Anarkali’s public key.
A digital signature is created with the signer’s private key, which only Anarkali holds, and verified with the matching public key, which anyone can obtain. Successful verification proves the message came from the holder of that private key and was not altered.
Anarkali’s private key is used for signing, and Salim must never have it. Salim’s own keys play no part in verifying Anarkali’s signature; they would be used if Anarkali were encrypting a message for Salim, or if Salim signed something himself.
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