Updated on 2024-08-27 GMT+08:00

Enabling Server-Side Encryption When Uploading an Object

OBS allows you to encrypt objects with server-side encryption so that the objects can be securely stored in OBS.

When you upload an object to a bucket with server-side encryption disabled, you can separately configure server-side encryption for the object. If the bucket has server-side encryption enabled, the object you upload inherits encryption from the bucket by default. You can also configure new encryption for the object.

Constraints

  • The object encryption status cannot be changed.
  • A key in use cannot be deleted. Otherwise, the object encrypted with this key cannot be downloaded.
  • If an object is server-side encrypted and does not have any IAM agency, other accounts and users cannot access the object even if they can read this object.

Prerequisites

In the region where OBS is deployed, the KMS Administrator permission has been added to the user group. For details about how to add the permission, see Assigning Permissions to an IAM User. If the current account or user is the grantee, it also requires the KMS Administrator permission.

Procedure

  1. In the navigation pane of OBS Console, choose Object Storage.
  2. In the bucket list, click the bucket you want to operate to go to the Objects page.
  3. Click Upload Object. The Upload Object dialog box is displayed.
  4. Add the files to be uploaded.
  5. Select KMS encryption and select a key that you have created on DEW.

    If the bucket has server-side encryption enabled, any object you upload will inherit the KMS encryption from the bucket by default.

    After KMS encryption is selected, obs/default is selected by default as the key for the encryption. You can also click Create KMS Key to switch to the KMS management console and create a customer master key. Then go back to OBS Console and select the key from the drop-down list.

    For details, see Creating a Key.

    Figure 1 Encrypting an object to be uploaded

  6. Click Upload.

    After the object is uploaded, you can view its encryption status on its details page.