Help Center/ Data Encryption Workshop/ User Guide (Kuala Lumpur Region)/ FAQs/ KMS Related/ When Should I Use a CMK Created with Imported Key Materials?
Updated on 2025-12-02 GMT+08:00
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When Should I Use a CMK Created with Imported Key Materials?

  • If you do not want to use KMS-generated key materials, you can import your own key materials to create a CMK. Such a CMK allows deletion of only the key materials when you do not need it. In addition, when you find that the key materials are mis-deleted, you can import the same materials to the CMK.
  • You can also import local key materials to KMS when you want to use the same keys on cloud and on-premises. This practice has proved useful when user migrate local encrypted data to the cloud.
Parent topic: KMS Related