Which statement describes private key encryption?

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Multiple Choice

Which statement describes private key encryption?

Explanation:
Private key encryption means using a single shared secret key to both encrypt and decrypt data. This symmetric approach relies on the same key being kept secret by the communicating parties, so the same key performs both directions of the transformation. Saying that one key is used for encryption and decryption directly describes this setup. Using two keys would point to an asymmetric system, and public key cryptography involves a key pair rather than a single shared secret.

Private key encryption means using a single shared secret key to both encrypt and decrypt data. This symmetric approach relies on the same key being kept secret by the communicating parties, so the same key performs both directions of the transformation. Saying that one key is used for encryption and decryption directly describes this setup. Using two keys would point to an asymmetric system, and public key cryptography involves a key pair rather than a single shared secret.

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