Creating a Grant
Function
This API is used to create a grant. Granted users can perform operations on the granted keys. The service default CMK whose suffix is /default cannot be granted.
Calling Method
For details, see Calling APIs.
Authorization Information
Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.
- If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.
 - If you are using identity policy-based authorization, the following identity policy-based permissions are required. 
     
Action
Access Level
Resource Type (*: required)
Condition Key
Alias
Dependencies
kms:cmk:createGrant
Permission_management
KeyId *
- 
            
kms:KeyOrigin
 - 
            
kms:KeySpec
 - 
            
kms:KeyUsage
 - 
            
kms:MultiRegionKeyType
 - 
            
g:EnterpriseProjectId
 - 
            
g:ResourceTag/<tag-key>
 
- kms:grant:create
 
-
-
- 
            
kms:GranteePrincipalType
 - 
            
kms:GrantOperations
 - 
            
kms:GranteePrincipal
 - 
            
kms:RetiringPrincipal
 
 - 
            
 
URI
POST /v1.0/{project_id}/kms/create-grant
| 
         Parameter  | 
       
         Mandatory  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|---|
| 
         project_id  | 
       
         Yes  | 
       
         String  | 
       
         Project ID  | 
      
Request Parameters
| 
         Parameter  | 
       
         Mandatory  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|---|
| 
         X-Auth-Token  | 
       
         Yes  | 
       
         String  | 
       
         User token. It can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the user token.  | 
      
| 
         Parameter  | 
       
         Mandatory  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|---|
| 
         key_id  | 
       
         Yes  | 
       
         String  | 
       
         A 36-byte key ID which matches the regular expression ^[0-9a-z]{8}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{12}$, for example, 0d0466b0-e727-4d9c-b35d-f84bb474a37f.  | 
      
| 
         grantee_principal  | 
       
         Yes  | 
       
         String  | 
       
         ID of the granted user. The value contains 1 to 64 bytes and matches the regular expression ^[a-zA-Z0-9]{1,64}$, for example, 0d0466b00d0466b00d0466b00d0466b0.  | 
      
| 
         operations  | 
       
         Yes  | 
       
         Array of strings  | 
       
         List of granted operations. Possible values are as follows: create-datakey: Create a DEK. create-datakey-without-plaintext: Create a DEK that does not contain plaintext. encrypt-datakey: Encrypt DEK. decrypt-datakey: Decrypt DEK. describe-key: Query the key information. create-grant: Create the grant. retire-grant: Retire the grant. encrypt-data: Encrypt data. decrypt-data: Decrypt data. The value cannot be only create-grant.  | 
      
| 
         name  | 
       
         No  | 
       
         String  | 
       
         Grant name. The value is a string of 1 to 255 characters and matches the regular expression ^[a-zA-Z0-9:/_-]{1,255}$.  | 
      
| 
         retiring_principal  | 
       
         No  | 
       
         String  | 
       
         ID of the user whose grant can be retired. The value contains 1 to 64 bytes and matches the regular expression ^[a-zA-Z0-9]{1,64}$, for example, 0d0466b00d0466b00d0466b00d0466b0.  | 
      
| 
         grantee_principal_type  | 
       
         No  | 
       
         String  | 
       
         Grant type. Values: user, domain. The default value is user.  | 
      
| 
         sequence  | 
       
         No  | 
       
         String  | 
       
         A 36-byte serial number of a request message, for example, 919c82d4-8046-4722-9094-35c3c6524cff  | 
      
Response Parameters
Status code: 200
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         grant_id  | 
       
         String  | 
       
         Grant ID, which contains 64 bytes.  | 
      
Status code: 400
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error  | 
       
         Object  | 
       
         Error message  | 
      
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error_code  | 
       
         String  | 
       
         Error code returned by the error request  | 
      
| 
         error_msg  | 
       
         String  | 
       
         Error information returned by the error request  | 
      
Status code: 401
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error  | 
       
         Object  | 
       
         Error message  | 
      
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error_code  | 
       
         String  | 
       
         Error code returned by the error request  | 
      
| 
         error_msg  | 
       
         String  | 
       
         Error information returned by the error request  | 
      
Status code: 403
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error  | 
       
         Object  | 
       
         Error message  | 
      
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error_code  | 
       
         String  | 
       
         Error code returned by the error request  | 
      
| 
         error_msg  | 
       
         String  | 
       
         Error information returned by the error request  | 
      
Status code: 404
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error  | 
       
         Object  | 
       
         Error message  | 
      
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error_code  | 
       
         String  | 
       
         Error code returned by the error request  | 
      
| 
         error_msg  | 
       
         String  | 
       
         Error information returned by the error request  | 
      
Status code: 500
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error  | 
       
         Object  | 
       
         Error message  | 
      
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error_code  | 
       
         String  | 
       
         Error code returned by the error request  | 
      
| 
         error_msg  | 
       
         String  | 
       
         Error information returned by the error request  | 
      
Status code: 502
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error  | 
       
         Object  | 
       
         Error message  | 
      
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error_code  | 
       
         String  | 
       
         Error code returned by the error request  | 
      
| 
         error_msg  | 
       
         String  | 
       
         Error information returned by the error request  | 
      
Status code: 504
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error  | 
       
         Object  | 
       
         Error message  | 
      
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         error_code  | 
       
         String  | 
       
         Error code returned by the error request  | 
      
| 
         error_msg  | 
       
         String  | 
       
         Error information returned by the error request  | 
      
Example Requests
Grant user 13gg44z4g2sglzk0egw0u726zoyzvrs8 with permission to query, create, and encrypt a key whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f.
{
  "key_id" : "0d0466b0-e727-4d9c-b35d-f84bb474a37f",
  "operations" : [ "describe-key", "create-datakey", "encrypt-datakey" ],
  "grantee_principal" : "13gg44z4g2sglzk0egw0u726zoyzvrs8",
  "grantee_principal_type" : "user",
  "retiring_principal" : "13gg44z4g2sglzk0egw0u726zoyzvrs8"
}
  Example Responses
Status code: 200
Request succeeded.
{
  "grant_id" : "7c9a3286af4fcca5f0a385ad13e1d21a50e27b6dbcab50f37f30f93b8939827d"
}
  SDK Sample Code
The SDK sample code is as follows.
Grant user 13gg44z4g2sglzk0egw0u726zoyzvrs8 with permission to query, create, and encrypt a key whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f.
          1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60  | 
         
          package com.huaweicloud.sdk.test; import com.huaweicloud.sdk.core.auth.ICredential; import com.huaweicloud.sdk.core.auth.BasicCredentials; import com.huaweicloud.sdk.core.exception.ConnectionException; import com.huaweicloud.sdk.core.exception.RequestTimeoutException; import com.huaweicloud.sdk.core.exception.ServiceResponseException; import com.huaweicloud.sdk.kms.v2.region.KmsRegion; import com.huaweicloud.sdk.kms.v2.*; import com.huaweicloud.sdk.kms.v2.model.*; import java.util.List; import java.util.ArrayList; public class CreateGrantSolution { public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment String ak = System.getenv("CLOUD_SDK_AK"); String sk = System.getenv("CLOUD_SDK_SK"); String projectId = "{project_id}"; ICredential auth = new BasicCredentials() .withProjectId(projectId) .withAk(ak) .withSk(sk); KmsClient client = KmsClient.newBuilder() .withCredential(auth) .withRegion(KmsRegion.valueOf("<YOUR REGION>")) .build(); CreateGrantRequest request = new CreateGrantRequest(); CreateGrantRequestBody body = new CreateGrantRequestBody(); List<String> listbodyOperations = new ArrayList<>(); listbodyOperations.add("describe-key"); listbodyOperations.add("create-datakey"); listbodyOperations.add("encrypt-datakey"); body.withGranteePrincipalType(CreateGrantRequestBody.GranteePrincipalTypeEnum.fromValue("user")); body.withRetiringPrincipal("13gg44z4g2sglzk0egw0u726zoyzvrs8"); body.withOperations(listbodyOperations); body.withGranteePrincipal("13gg44z4g2sglzk0egw0u726zoyzvrs8"); body.withKeyId("0d0466b0-e727-4d9c-b35d-f84bb474a37f"); request.withBody(body); try { CreateGrantResponse response = client.createGrant(request); System.out.println(response.toString()); } catch (ConnectionException e) { e.printStackTrace(); } catch (RequestTimeoutException e) { e.printStackTrace(); } catch (ServiceResponseException e) { e.printStackTrace(); System.out.println(e.getHttpStatusCode()); System.out.println(e.getRequestId()); System.out.println(e.getErrorCode()); System.out.println(e.getErrorMsg()); } } }  | 
        
Grant user 13gg44z4g2sglzk0egw0u726zoyzvrs8 with permission to query, create, and encrypt a key whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f.
          1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43  | 
         
          # coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkkms.v2.region.kms_region import KmsRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkkms.v2 import * if __name__ == "__main__": # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK"] sk = os.environ["CLOUD_SDK_SK"] projectId = "{project_id}" credentials = BasicCredentials(ak, sk, projectId) client = KmsClient.new_builder() \ .with_credentials(credentials) \ .with_region(KmsRegion.value_of("<YOUR REGION>")) \ .build() try: request = CreateGrantRequest() listOperationsbody = [ "describe-key", "create-datakey", "encrypt-datakey" ] request.body = CreateGrantRequestBody( grantee_principal_type="user", retiring_principal="13gg44z4g2sglzk0egw0u726zoyzvrs8", operations=listOperationsbody, grantee_principal="13gg44z4g2sglzk0egw0u726zoyzvrs8", key_id="0d0466b0-e727-4d9c-b35d-f84bb474a37f" ) response = client.create_grant(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg)  | 
        
Grant user 13gg44z4g2sglzk0egw0u726zoyzvrs8 with permission to query, create, and encrypt a key whose ID is 0d0466b0-e727-4d9c-b35d-f84bb474a37f.
          1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51  | 
         
          package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" kms "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/v2" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/v2/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/kms/v2/region" ) func main() { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak := os.Getenv("CLOUD_SDK_AK") sk := os.Getenv("CLOUD_SDK_SK") projectId := "{project_id}" auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). WithProjectId(projectId). Build() client := kms.NewKmsClient( kms.KmsClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.CreateGrantRequest{} var listOperationsbody = []string{ "describe-key", "create-datakey", "encrypt-datakey", } granteePrincipalTypeCreateGrantRequestBody:= model.GetCreateGrantRequestBodyGranteePrincipalTypeEnum().USER retiringPrincipalCreateGrantRequestBody:= "13gg44z4g2sglzk0egw0u726zoyzvrs8" request.Body = &model.CreateGrantRequestBody{ GranteePrincipalType: &granteePrincipalTypeCreateGrantRequestBody, RetiringPrincipal: &retiringPrincipalCreateGrantRequestBody, Operations: listOperationsbody, GranteePrincipal: "13gg44z4g2sglzk0egw0u726zoyzvrs8", KeyId: "0d0466b0-e727-4d9c-b35d-f84bb474a37f", } response, err := client.CreateGrant(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } }  | 
        
For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.
Status Codes
| 
         Status Code  | 
       
         Description  | 
      
|---|---|
| 
         200  | 
       
         Request succeeded.  | 
      
| 
         400  | 
       
         Invalid request parameters.  | 
      
| 
         401  | 
       
         Username and password are required for the requested page.  | 
      
| 
         403  | 
       
         Authentication failed.  | 
      
| 
         404  | 
       
         The resource does not exist.  | 
      
| 
         500  | 
       
         Internal service error.  | 
      
| 
         502  | 
       
         Failed to complete the request. The server receives an invalid response from the upstream server.  | 
      
| 
         504  | 
       
         Gateway timed out.  | 
      
Error Codes
See Error Codes.
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