NCEA Level 2 Digital Technologies Practice Questions - NCEA Level 2 Digital Technologies (NZQA Standards 91890-91899) Exam

Which statement best describes symmetric key encryption?

The same secret key is used for both encrypting and decrypting data. A public key encrypts data while a private key decrypts it. A one-way mathematical function generates a unique hash value. Data is signed using a digital certificate from a certificate authority.

Correct Answer:

The same secret key is used for both encrypting and decrypting data.

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