Anarkali digitally signs a message and sends it to Salim. Verification of the signature by Salim requires.
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Answer: A
In public-key cryptography, digital signatures are used to provide authenticity, integrity, and non-repudiation.
The process works as follows:
- Signing (by Sender): Anarkali (the sender) signs the message (or a hash of the message) using her own private key. Since only Anarkali has access to her private key, this uniquely binds her identity to the signature.
- Verification (by Receiver): Salim (the receiver) verifies the signature using Anarkali's public key. If the verification is successful, it proves that the message was indeed signed by Anarkali and has not been altered in transit.
Therefore, to verify the signature, Salim requires Anarkali's public key.
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