Does public key encryption involve the use of a single key that only the sender and the receiver know?

Name: Does public key encryption involve the use of a single key that only the sender and the receiver know?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Public key encryption uses a pair of keys: a public key, which is shared openly, and a private key, which is kept secret by the owner. The sender uses the recipient's public key for encryption, and the recipient uses their own private key for decryption.

Does Public Key Encryption Involve the Use of a Single