ScheduleKeyDeletion - AWS KMS
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China.

ScheduleKeyDeletion

Schedules the deletion of a customer master key (CMK). By default, Amazon KMS applies a waiting period of 30 days, but you can specify a waiting period of 7-30 days. When this operation is successful, the key state of the CMK changes to PendingDeletion and the key can't be used in any cryptographic operations. It remains in this state for the duration of the waiting period. Before the waiting period ends, you can use CancelKeyDeletion to cancel the deletion of the CMK. After the waiting period ends, Amazon KMS deletes the CMK, its key material, and all Amazon KMS data associated with it, including all aliases that refer to it.

Important

Deleting a CMK is a destructive and potentially dangerous operation. When a CMK is deleted, all data that was encrypted under the CMK is unrecoverable. (The only exception is a multi-Region replica key.) To prevent the use of a CMK without deleting it, use DisableKey.

If you schedule deletion of a CMK from a custom key store, when the waiting period expires, ScheduleKeyDeletion deletes the CMK from Amazon KMS. Then Amazon KMS makes a best effort to delete the key material from the associated Amazon CloudHSM cluster. However, you might need to manually delete the orphaned key material from the cluster and its backups.

You can schedule the deletion of a multi-Region primary key and its replica keys at any time. However, Amazon KMS will not delete a multi-Region primary key with existing replica keys. If you schedule the deletion of a primary key with replicas, its key state changes to PendingReplicaDeletion and it cannot be replicated or used in cryptographic operations. This status can continue indefinitely. When the last of its replicas keys is deleted (not just scheduled), the key state of the primary key changes to PendingDeletion and its waiting period (PendingWindowInDays) begins. For details, see Deleting multi-Region keys in the Amazon Key Management Service Developer Guide.

For more information about scheduling a CMK for deletion, see Deleting Customer Master Keys in the Amazon Key Management Service Developer Guide.

The CMK that you use for this operation must be in a compatible key state. For details, see Key state: Effect on your CMK in the Amazon Key Management Service Developer Guide.

Cross-account use: No. You cannot perform this operation on a CMK in a different Amazon Web Services account.

Required permissions: kms:ScheduleKeyDeletion (key policy)

Related operations

Request Syntax

{ "KeyId": "string", "PendingWindowInDays": number }

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

Note

In the following list, the required parameters are described first.

KeyId

The unique identifier of the customer master key (CMK) to delete.

Specify the key ID or key ARN of the CMK.

For example:

  • Key ID: 1234abcd-12ab-34cd-56ef-1234567890ab

  • Key ARN: arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab

To get the key ID and key ARN for a CMK, use ListKeys or DescribeKey.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 2048.

Required: Yes

PendingWindowInDays

The waiting period, specified in number of days. After the waiting period ends, Amazon KMS deletes the customer master key (CMK).

If the CMK is a multi-Region primary key with replicas, the waiting period begins when the last of its replica keys is deleted. Otherwise, the waiting period begins immediately.

This value is optional. If you include a value, it must be between 7 and 30, inclusive. If you do not include a value, it defaults to 30.

Type: Integer

Valid Range: Minimum value of 7. Maximum value of 30.

Required: No

Response Syntax

{ "DeletionDate": number, "KeyId": "string", "KeyState": "string", "PendingWindowInDays": number }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

DeletionDate

The date and time after which Amazon KMS deletes the customer master key (CMK).

If the CMK is a multi-Region primary key with replica keys, this field does not appear. The deletion date for the primary key isn't known until its last replica key is deleted.

Type: Timestamp

KeyId

The Amazon Resource Name (key ARN) of the CMK whose deletion is scheduled.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 2048.

KeyState

The current status of the CMK.

For more information about how key state affects the use of a CMK, see Key state: Effect on your CMK in the Amazon Key Management Service Developer Guide.

Type: String

Valid Values: Creating | Enabled | Disabled | PendingDeletion | PendingImport | PendingReplicaDeletion | Unavailable | Updating

PendingWindowInDays

The waiting period before the CMK is deleted.

If the CMK is a multi-Region primary key with replicas, the waiting period begins when the last of its replica keys is deleted. Otherwise, the waiting period begins immediately.

Type: Integer

Valid Range: Minimum value of 1. Maximum value of 365.

Errors

For information about the errors that are common to all actions, see Common Errors.

DependencyTimeoutException

The system timed out while trying to fulfill the request. The request can be retried.

HTTP Status Code: 500

InvalidArnException

The request was rejected because a specified ARN, or an ARN in a key policy, is not valid.

HTTP Status Code: 400

KMSInternalException

The request was rejected because an internal exception occurred. The request can be retried.

HTTP Status Code: 500

KMSInvalidStateException

The request was rejected because the state of the specified resource is not valid for this request.

For more information about how key state affects the use of a CMK, see How Key State Affects Use of a Customer Master Key in the Amazon Key Management Service Developer Guide .

HTTP Status Code: 400

NotFoundException

The request was rejected because the specified entity or resource could not be found.

HTTP Status Code: 400

Examples

The following examples are formatted for legibility.

Example Request

This example illustrates one usage of ScheduleKeyDeletion.

POST / HTTP/1.1 Host: kms.us-east-2.amazonaws.com Content-Length: 75 X-Amz-Target: TrentService.ScheduleKeyDeletion X-Amz-Date: 20161210T003358Z Content-Type: application/x-amz-json-1.1 Authorization: AWS4-HMAC-SHA256\ Credential=AKIAI44QH8DHBEXAMPLE/20161210/us-east-2/kms/aws4_request,\ SignedHeaders=content-type;host;x-amz-date;x-amz-target,\ Signature=c42c52cf0e4057e004b73a905b0e5da215f63dd33117e7316f760e6223433abb { "PendingWindowInDays": 7, "KeyId": "1234abcd-12ab-34cd-56ef-1234567890ab" }

Example Response

This example illustrates one usage of ScheduleKeyDeletion.

HTTP/1.1 200 OK Server: Server Date: Sat, 10 Dec 2016 00:33:58 GMT Content-Type: application/x-amz-json-1.1 Content-Length: 114 Connection: keep-alive x-amzn-RequestId: 5704ddf7-be70-11e6-b0c0-3343f53dee45 { "DeletionDate": 1.4820192E9, "KeyId": "arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab", "PendingWindowInDays": 7 }