Updated on 2024-08-06 GMT+08:00

Create 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.

URI

POST /v1.0/{project_id}/kms/create-grant

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID

Request Parameters

Table 2 Request header 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.

Table 3 Request body parameters

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

Table 4 Response body parameters

Parameter

Type

Description

grant_id

String

Grant ID, which contains 64 bytes.

Status code: 400

Table 5 Response body parameters

Parameter

Type

Description

error

Object

Error message.

Table 6 ErrorDetail

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

Table 7 Response body parameters

Parameter

Type

Description

error

Object

Error message.

Table 8 ErrorDetail

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

Table 9 Response body parameters

Parameter

Type

Description

error

Object

Error message.

Table 10 ErrorDetail

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

Table 11 Response body parameters

Parameter

Type

Description

error

Object

Error message.

Table 12 ErrorDetail

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

Table 13 Response body parameters

Parameter

Type

Description

error

Object

Error message.

Table 14 ErrorDetail

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

Table 15 Response body parameters

Parameter

Type

Description

error

Object

Error message.

Table 16 ErrorDetail

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

Table 17 Response body parameters

Parameter

Type

Description

error

Object

Error message.

Table 18 ErrorDetail

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"ID "0d0466b0-e727-4d9c-b35d-f84bb474a37f with permission to query, create, and encrypt a DEK.

{
  "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"ID "0d0466b0-e727-4d9c-b35d-f84bb474a37f with permission to query, create, and encrypt a DEK.

 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
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");

        ICredential auth = new BasicCredentials()
                .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"ID "0d0466b0-e727-4d9c-b35d-f84bb474a37f with permission to query, create, and encrypt a DEK.

 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
# 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"]

    credentials = BasicCredentials(ak, sk)

    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"ID "0d0466b0-e727-4d9c-b35d-f84bb474a37f with permission to query, create, and encrypt a DEK.

 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
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")

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        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.