Encrypyion method, use data key encryption raw rocksdb data Possible values: plaintext, aes128-ctr, aes192-ctr, aes256-ctr Optional: Default to plaintext optional

The frequency of datakey rotation, It managered by tikv Optional: default to 7d optional

Master key config

Previous master key config It used in master key rotation, the data key should decryption by previous master key and then encrypytion by new master key