Last updated: 2019-12-14 11:51:50

1. API Description

API domain name:

This API creates a customer master key (CMK) for data key management.

API request rate limit: 100 requests/sec.

2. Input Parameters

The list below contains only the API request parameters and certain common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter name Required Type Description
Action Yes String Common parameter. The value used for this API: CreateKey
Version Yes String Common parameter. The version of this API: 2019-01-18
Region Yes String Common parameter. For more information, see the List of Regions supported by the product.
Alias Yes String Alias that makes a key more recognizable and understandable. This parameter cannot be empty and can contain 1-60 characters or numbers
Description No String CMK description of up to 1,024 bytes
KeyUsage No String Specifies what the key is used for. Currently, only "ENCRYPT_DECRYPT" is supported. The default value is "ENCRYPT_DECRYPT", i.e., the key is used for encryption and decryption
Type No Integer Specifies the key type. 1: default type in the current region. The default value is 1, and currently only this type is supported

3. Output Parameters

Parameter name Type Description
KeyId String Globally unique ID of the CMK
Alias String Alias that makes a key more recognizable and understandable
CreateTime Integer Key creation time in Unix timestamp format
Description String CMK description
Note: This field may return null, indicating that no valid values can be obtained.
KeyState String CMK status
KeyUsage String CMK usage
RequestId String Unique ID of the request. Each request returns a unique ID. The RequestId is required to troubleshoot issues.

4. Examples

Example 1. Creating a CMK

Create a CMK used for data key management. The CMK can be used in other APIs to create data keys, perform encryption and decryption, and do more.

Input Sample Code
&<Common request parameter>

Output Sample Code

  "Response": {
    "KeyId": "9999aed0-4956-11e9-bc70-5254005e86b4",
    "Alias": "alias-0001",
    "CreateTime": 1552897190,
    "Description": "test cmk",
    "KeyState": "Enabled",
    "KeyUsage": "ENCRYPT_DECRYPT",
    "RequestId": "850bf779-2249-4995-8c55-b3966daf0a8c"

5. Developer Resources

API Explorer

*This tool makes it easy for you to call Tencent Cloud APIs, authenticate signature, generate SDK codes, and search for APIs. *

6. Error Codes

The following only lists the error codes related to this API. For other error codes, see Common Error Codes.

Error Code Description
InternalError Internal error.
InvalidParameter Incorrect parameter.
InvalidParameterValue.AliasAlreadyExists The alias already exists.
InvalidParameterValue.InvalidAlias The alias is in incorrect format.
InvalidParameterValue.InvalidKeyUsage Invalid KeyUsage.
InvalidParameterValue.InvalidType Invalid type.
LimitExceeded.CmkLimitExceeded The number of CMKs has reached the limit.
UnauthorizedOperation Unauthorized operation.