/sys/rotate endpoint is used to rotate the encryption key.
»Rotate Encryption Key
This endpoint triggers a rotation of the backend encryption key. This is the key that is used to encrypt data written to the storage backend, and is not provided to operators. This operation is done online. Future values are encrypted with the new key, while old values are decrypted with previous encryption keys.
This path requires
sudo capability in addition to
$ curl \ --header "X-Vault-Token: ..." \ --request PUT \ http://127.0.0.1:8200/v1/sys/rotate