In the lesson's asymmetric file-encryption example, the recipient decrypts data encrypted with the recipient's public key using the corresponding _____ key.
Answer
private
Explanation
### Why this is right
The lesson demonstrates encrypting with the public key and decrypting with the corresponding private key. The private key is held by the recipient.
### The concept
Asymmetric encryption uses a related pair of keys. The public key can be used by a sender to encrypt data for its owner. The matching private key is needed to decrypt that data. This differs from symmetric encryption, where one shared secret key is used for both encryption and decryption. The lesson’s hybrid exercise uses this public/private operation for the symmetric key rather than for the full document.
### Terms
- **Asymmetric encryption**: Encryption using a related public and private key pair.
- **Public key**: A shareable key used in the lesson to encrypt for its owner.
- **Private key**: The corresponding secret key used to decrypt.
### Remember
Public key encrypts for the recipient; the matching private key decrypts.
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