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 IAM 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.

Procedure

1. Log in to the management console.
2. Click in the upper left corner of the management console and select a region or project.
3. Click on the left. Choose Security & Compliance > Data Encryption Workshop.
4. Click the name of the target custom key to go to its details page and create a grant on it.
5. Click the Grants tab.
6. Click Create Grant. The Create Grant dialog box is displayed.
   Figure 1 Creating a grant (for a user)
   
   Figure 2 Creating a grant (for an account)
   

7. In the dialog box that is displayed, enter the ID of the user to be authorized and select permissions to be granted. For details, see Table 1.
   

   A grantee can perform the authorized operations only by calling the necessary APIs. For details, see the Data Encryption Workshop API Reference.

   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
   Grant Name	You can name the grant. NOTE: You can enter digits, letters, underscores (_), hyphens (-), colons (:), and slashes (/).	test
   Operations	You can authorize multiple permissions. The following permissions can be authorized: Query Key Details Create Grant Retire Grant For details about how to authorize a key algorithm, see Table 2.	-

   Table 2 Granting operations

   Key Algorithm	Key Type	Usage	Granted Operations
   AES_256	Symmetric key	ENCRYPT_DECRYPT	Create Data Key Without Plaintext Create Data Key Encrypt Data Key Decrypt Data Key Encrypt Data Decrypt Data
   RSA_2048 RSA_3072 RSA_4096 EC_P256 EC_P384	Asymmetric key	SIGN_VERIFY	Query a public key Signature Signature verification
   RSA_2048 RSA_3072 RSA_4096	Asymmetric key	ENCRYPT_DECRYPT	Query a public key Encrypt Data Decrypt Data
   HMAC_256 HMAC_384 HMAC_512	Digest key	GENERATE_VERIFY_MAC	Generate HMAC Verify HMAC

8. 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.