Creating a Grant

Prerequisites

• You have obtained the ID of the grantee (user to whom permissions are to be authorized).
• The target custom key is in Enabled status.

Constraints

• The owner of a custom key can create a grant for the custom key on the KMS console or by calling APIs. The users or accounts who have the grant creation permission assigned by the owner of the custom key can create grants for the custom key only by calling APIs.
• A maximum of 100 grants can be created for a custom key.
• Only users and accounts can be authorized. Agency authorization is not supported.

Procedure

1. Log in to the management console.
2. Click . Choose Security > Key Management Service. The Key Management Service page is displayed.
3. Click the alias of the target custom key to go to its details page and create a grant on it.
4. Click the Grants tab.
5. Click Create Grant. The Create Grant dialog box is displayed.
6. In the dialog box that is displayed, enter the ID of the user to be authorized and select permissions to be granted. For more information, see Table 1.
   

   A grantee can perform the authorized operations only by calling the necessary APIs. For details, see the .

   Table 1 Parameter description

   Parameter	Description	Example Value
   User or Tenant	Whether a user or an account is authorized. User User ID: Enter the IAM user ID. To obtain the ID, click the username in the upper right corner of the page, choose My Credentials. Choose API Credentials from the navigation pane, and copy the value of IAM User ID. After the authorization is complete, the IAM user can use the specified keys. Account Account ID: Enter the IAM user ID. To obtain the ID, click the username in the upper right corner of the page, choose My Credentials. Choose API Credentials from the navigation pane and copy the value of Account ID. After the authorization is complete, all IAM users under the account can use the specified keys.	d9a6b2bdaedd4ba586cabe6372d1b312
   Operations	The following permissions can be authorized: NOTE: You can create multiple grants on a custom key to provide different permissions to the same user. The user's permissions on the custom key are the combination of all the grants. This parameter cannot be left blank. Selecting only Create Grant is not allowed. Create Data Key Without Plaintext Create Data Key Encrypt Data Key Decrypt Data Key Query Key Information Create Grant Retire Grant A grantee can retire a grant if the grantee does not need that permission. If, before retiring a grant, the grantee has granted the permission to another user, that user's permission will not be affected by the grant retirement. Encrypt Data Decrypt Data	-

7. Click OK. When message Grant created successfully is displayed in the upper right corner, the grant has been created.

   In the list of grants, you can view the grant name, grant type, grantee ID, granted operation, and creation time of the grant.