Help Center> Data Encryption Workshop> API Reference> APIs> Key Management APIs> Authorization Management> Creating a Grant
Updated on 2022-09-15 GMT+08:00
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Creating a Grant

Function

This API is used to create a grant. A grantee can perform operations on a granted key.

Constraints

A Default Master Key (the alias suffix of which is /default) does not allow permission granting.

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. The token can be obtained by calling the IAM API (value of X-Subject-Token in the response header).
Table 3 Request body parameters

Parameter

Mandatory

Type

Description

key_id

Yes

String

CMK ID. It should be 36 bytes and match the regular expression ^[0-9a-z]{8}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{12}$. Example: 0d0466b0-e727-4d9c-b35d-f84bb474a37f

grantee_principal

Yes

String

Grantee ID, which contains 1 to 64 bytes and matches the regular expression ^[a-zA-Z0-9]{1, 64}$. Example: 0d0466b00d0466b00d0466b00d0466b0

operations

Yes

Array of strings

List of granted operations. Values: create-datakey, create-datakey-without-plaintext, encrypt-datakey, decrypt-datakey, describe-key, create-grant, retire-grant, encrypt-data, decrypt-data. A value containing only create-grant is invalid.

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 who can retire a grant. It contains 1 to 64 bytes and matches the regular expression ^[a-zA-Z0-9]{1, 64}$. Example: 0d0466b00d0466b00d0466b00d0466b0

grantee_principal_type

No

String

Grant type. Values: user, domain. The default value is user.

sequence

No

String

36-byte sequence number of a request message. 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.

error_msg

String

Error information.

Status code: 403

Table 7 Response body parameters

Parameter

Type

Description

error

Object

Error message.
Table 8 ErrorDetail

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error information.

Status code: 404

Table 9 Response body parameters

Parameter

Type

Description

error

Object

Error message.
Table 10 ErrorDetail

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error information.

Example Requests

{
  "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 processing succeeded.

{
  "grant_id" : "7c9a3286af4fcca5f0a385ad13e1d21a50e27b6dbcab50f37f30f93b8939827d"
}

Status code: 400

Invalid request parameters.

{
  "error" : {
    "error_code" : "KMS.XXX",
    "error_msg" : "XXX"
  }
}

Status code: 403

Authentication failed.

{
  "error" : {
    "error_code" : "KMS.XXX",
    "error_msg" : "XXX"
  }
}

Status code: 404

The requested resource does not exist or is not found.

{
  "error" : {
    "error_code" : "KMS.XXX",
    "error_msg" : "XXX"
  }
}

Status Codes

Status Code

Description

200

Request processing succeeded.

400

Invalid request parameters.

403

Authentication failed.

404

The requested resource does not exist or is not found.

Error Codes

See Error Codes.

Parent topic: Authorization Management