What is envelope encryption and why is it used in cloud?

What is envelope encryption and why is it used in cloud?

• A. Data is encrypted with a data key, which is itself encrypted with a master key; enables scalable, secure key management and performance.
• B. Envelope encryption uses a single key for all data.
• C. Envelope encryption uses no keys.
• D. Envelope encryption is a term used for securing emails.

Answer: (A)