A hashed message is signed by a sender using:

20072007

A hashed message is signed by a sender using:

  1. A.

    his public key

  2. B.

    his private key

  3. C.

    receiver’s public key

  4. D.

    receiver’s private key

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Correct answer: B

To create a digital signature, the sender hashes the message and then encrypts that hash using their own private key. This guarantees authenticity since only the sender possesses the private key.

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