In public key encryption for authentication, the receiver decrypts with the public key of the sender.

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In public key encryption for authentication, the receiver encrypts a message with the sender's public key and sends it to the sender. The sender decrypts the message with their private key and sends a confirmation back to the receiver. This process proves the authenticity of the sender without revealing their private key.

In Public Key Encryption for Authentication, the Receiver Decrypts with the Public