DescribeDBClusterEncryptionKey - - Alibaba Cloud Documentation Center

Queries the key usage details for a specified PolarDB cluster.

Operation description

Description

You can call this operation to query the key usage details for a PolarDB cluster, such as the key ID, status, and type.
The DBClusterId parameter is required. It specifies the ID of the PolarDB cluster to query.
Before you call this operation, make sure that the required Resource Access Management (RAM) roles and policies are configured.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

polardb:DescribeDBClusterEncryptionKey

get

*All Resource

*

None

Request syntax

POST  HTTP/1.1

Request parameters

Parameter	Type	Required	Description	Example
ClientToken	string	No	A client token to ensure the idempotence of the request.	6000170000591aed949d0f******************
DBClusterId	string	No	The cluster ID. Note Call the DescribeDBClusters operation to query the details of all clusters in your account, including cluster IDs.	pc-***

Response elements

Element	Type	Description	Example
	object	The response body.
RequestId	string	The request ID.	137ECCC0-920E-5B3B-9F8E-B81632108BBE
EncryptionKeyList	array<object>	The list of keys.
	object	The key details.
AliasName	string	The alias of the key.	alias/your_default_key
Creator	string	The UID of the Alibaba Cloud account that created the key.	1****1
DeleteDate	string	The scheduled time to delete the key. The format is yyyy-MM-ddTHH:mm:ssZ (UTC). This field is empty if the key is not scheduled for deletion.	2026-05-08T08:14:16Z
Description	string	The description of the key.	Description of the key
EncryptionKey	string	The key ID.	51858179-afb3-4369-8329-*********
EncryptionKeyStatus	string	The status of the key. Valid values: Enabled: The key is enabled. Disabled: The key is not enabled.	Enabled
KeyType	string	The type of the key. Valid values: CMK: customer master key ServiceKey: service key	ServiceKey
KeyUsage	string	The purpose of the key.	ENCRYPT/DECRYPT
MaterialExpireTime	string	The expiration time of the key. The format is yyyy-MM-ddTHH:mm:ssZ (UTC).	2025-10-18T08:14:16Z
Origin	string	The source of the key.	Aliyun_KMS
UsedBy	string	The service that uses the key. Valid values: TDE: transparent data encryption (TDE). DiskEncryption: disk encryption.	DiskEncryption

Examples

Success response

JSON format

{
  "RequestId": "137ECCC0-920E-5B3B-9F8E-B81632108BBE",
  "EncryptionKeyList": [
    {
      "AliasName": "alias/your_default_key",
      "Creator": "1****1",
      "DeleteDate": "2026-05-08T08:14:16Z",
      "Description": "Description of the key",
      "EncryptionKey": "51858179-afb3-4369-8329-*********",
      "EncryptionKeyStatus": "Enabled",
      "KeyType": "ServiceKey",
      "KeyUsage": "ENCRYPT/DECRYPT",
      "MaterialExpireTime": "2025-10-18T08:14:16Z",
      "Origin": "Aliyun_KMS",
      "UsedBy": "DiskEncryption"
    }
  ]
}

Error codes

HTTP status code	Error code	Error message	Description
400	IdempotentParameterMismatch	The request uses the same client token as a previous, but non-identical request. Do not reuse a client token with different requests, unless the requests are identical.
404	InvalidDBClusterId.Malformed	The specified parameter DBClusterId is not valid.	The specified DBClusterId parameter is invalid.
404	InvalidDBClusterId.NotFound	The DBInstanceId provided does not exist in our records.	The specified DBClusterId parameter does not exist in the current record.
404	InvalidDBInstance.NotFound	The DBClusterId provided does not exist in our records.	The specified DBClusterId parameter does not exist in the current record.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.