Exam HCVA0-003 Topic 8 Question 213 Discussion

Rekeying is used when the unseal or recovery key custody model must change. If a keyholder joins or leaves the organization, the existing shares should no longer be trusted as the active quorum, so rekeying creates a new set of key shares and can change the threshold. A compliance requirement to refresh the key material used to reconstruct the root key is also a valid rekey driver. Adding more Vault nodes does not require rekeying because storage clustering and seal key custody are separate concerns. Upgrading editions does not inherently require new key shares. If the root token is lost, the proper operation is root-token generation using a quorum, not rekeying. HashiCorp documents vault operator rekey as the command that generates a new set of unseal keys and can change key shares or threshold.