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A sender is employing public key cryptography to send a secret message to a receiver. Which one of the following statements is TRUE?

  1. Sender encrypts using receiver's public key
  2. Sender encrypts using his own public key
  3. Receiver decrypts using sender's public key
  4. Receiver decrypts using his own public key

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If Alice wants to send data to Bob

Then you must be clear about how to send data to receiver

If sender sends data with encrypting receiver public key which receiver has shared, no one knows actually what is the private key of receiver. So receiver only can decode it with its private key.

This way the secret message will be shared by the sender to the receiver
Answer:

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