An organization needs to secure large volumes of data while replacing cryptographic secrets on a consistent cycle. Which approach relies on using a smaller secret to protect the main key, allowing more efficient exchanges of the key material?
Use short-term symmetrical secrets alone for each session
Refresh symmetrical keys for each data entry or change
Rely on a single symmetrical key for every data set
Combine symmetrical encryption for data with an additional secret that secures cryptographic material
Encrypting large amounts of data with symmetrical processes while using a smaller protector secret prevents time-consuming re-encryption of all data during secret rotation. Relying on a single symmetrical key complicates frequent changes. Replacing symmetrical keys every time content changes is also resource-intensive. Generating ephemeral symmetrical secrets without adding a further step can be less convenient for large-scale rotations.
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What is symmetrical encryption, and why is it used to secure data?
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What is a protector secret, and how does it enhance efficiency in key management?
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Why is replacing symmetrical keys for every change resource-intensive?