# EnableKeyRotation
Enables [automatic rotation of the key material](https://docs.aws.amazon.com/kms/latest/developerguide/rotating-keys-enable-disable.html) of the specified symmetric encryption KMS key.
By default, when you enable automatic rotation of a [customer managed KMS key](https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#customer-mgn-key), AWS KMS rotates the key material of the KMS key one year (approximately 365 days) from the enable date and every year thereafter. You can use the optional `RotationPeriodInDays` parameter to specify a custom rotation period when you enable key rotation, or you can use `RotationPeriodInDays` to modify the rotation period of a key that you previously enabled automatic key rotation on.
You can monitor rotation of the key material for your KMS keys in AWS CloudTrail and Amazon CloudWatch. To disable rotation of the key material in a customer managed KMS key, use the [DisableKeyRotation](API_DisableKeyRotation.md) operation. You can use the [GetKeyRotationStatus](API_GetKeyRotationStatus.md) operation to identify any in progress rotations. You can use the [ListKeyRotations](API_ListKeyRotations.md) operation to view the details of completed rotations.
Automatic key rotation is supported only on symmetric encryption KMS keys. You cannot enable automatic rotation of [asymmetric KMS keys](https://docs.aws.amazon.com/kms/latest/developerguide/symmetric-asymmetric.html), [HMAC KMS keys](https://docs.aws.amazon.com/kms/latest/developerguide/hmac.html), KMS keys with [imported key material](https://docs.aws.amazon.com/kms/latest/developerguide/importing-keys.html), or KMS keys in a [custom key store](https://docs.aws.amazon.com/kms/latest/developerguide/key-store-overview.html). To enable or disable automatic rotation of a set of related [multi-Region keys](https://docs.aws.amazon.com/kms/latest/developerguide/rotate-keys.html#multi-region-rotate), set the property on the primary key.
You cannot enable or disable automatic rotation of [AWS managed KMS keys](https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#aws-managed-key). AWS KMS always rotates the key material of AWS managed keys every year. Rotation of [AWS owned KMS keys](https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#aws-owned-key) is managed by the AWS service that owns the key.
**Note**
In May 2022, AWS KMS changed the rotation schedule for AWS managed keys from every three years (approximately 1,095 days) to every year (approximately 365 days).
New AWS managed keys are automatically rotated one year after they are created, and approximately every year thereafter.
Existing AWS managed keys are automatically rotated one year after their most recent rotation, and every year thereafter.
The KMS key that you use for this operation must be in a compatible key state. For details, see [Key states of AWS KMS keys](https://docs.aws.amazon.com/kms/latest/developerguide/key-state.html) in the * AWS Key Management Service Developer Guide*.
**Cross-account use**: No. You cannot perform this operation on a KMS key in a different AWS account.
**Required permissions**: [kms:EnableKeyRotation](https://docs.aws.amazon.com/kms/latest/developerguide/kms-api-permissions-reference.html) (key policy)
**Related operations:**
+ [DisableKeyRotation](API_DisableKeyRotation.md)
+ [GetKeyRotationStatus](API_GetKeyRotationStatus.md)
+ [ListKeyRotations](API_ListKeyRotations.md)
+ [RotateKeyOnDemand](API_RotateKeyOnDemand.md)
**Note**
You can perform on-demand ([RotateKeyOnDemand](API_RotateKeyOnDemand.md)) rotation of the key material in customer managed KMS keys, regardless of whether or not automatic key rotation is enabled.
**Eventual consistency**: The AWS KMS API follows an eventual consistency model. For more information, see [AWS KMS eventual consistency](https://docs.aws.amazon.com/kms/latest/developerguide/accessing-kms.html#programming-eventual-consistency).
## Request Syntax
```
{
"KeyId": "string",
"RotationPeriodInDays": number
}
```
## Request Parameters
For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).
The request accepts the following data in JSON format.
**Note**
In the following list, the required parameters are described first.
** [KeyId](#API_EnableKeyRotation_RequestSyntax) **
Identifies a symmetric encryption KMS key. You cannot enable automatic rotation of [asymmetric KMS keys](https://docs.aws.amazon.com/kms/latest/developerguide/symmetric-asymmetric.html), [HMAC KMS keys](https://docs.aws.amazon.com/kms/latest/developerguide/hmac.html), KMS keys with [imported key material](https://docs.aws.amazon.com/kms/latest/developerguide/importing-keys.html), or KMS keys in a [custom key store](https://docs.aws.amazon.com/kms/latest/developerguide/key-store-overview.html). To enable or disable automatic rotation of a set of related [multi-Region keys](https://docs.aws.amazon.com/kms/latest/developerguide/rotate-keys.html#multi-region-rotate), set the property on the primary key.
Specify the key ID or key ARN of the KMS key.
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 KMS key, use [ListKeys](API_ListKeys.md) or [DescribeKey](API_DescribeKey.md).
Type: String
Length Constraints: Minimum length of 1. Maximum length of 2048.
Required: Yes
** [RotationPeriodInDays](#API_EnableKeyRotation_RequestSyntax) **
Use this parameter to specify a custom period of time between each rotation date. If no value is specified, the default value is 365 days.
The rotation period defines the number of days after you enable automatic key rotation that AWS KMS will rotate your key material, and the number of days between each automatic rotation thereafter.
You can use the [https://docs.aws.amazon.com/kms/latest/developerguide/conditions-kms.html#conditions-kms-rotation-period-in-days](https://docs.aws.amazon.com/kms/latest/developerguide/conditions-kms.html#conditions-kms-rotation-period-in-days) condition key to further constrain the values that principals can specify in the `RotationPeriodInDays` parameter.
Type: Integer
Valid Range: Minimum value of 90. Maximum value of 2560.
Required: No
## Response Elements
If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.
## Errors
For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).
** DependencyTimeoutException **
The system timed out while trying to fulfill the request. You can retry the request.
HTTP Status Code: 500
** DisabledException **
The request was rejected because the specified KMS key is not enabled.
HTTP Status Code: 400
** 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.
This exceptions means one of the following:
+ The key state of the KMS key is not compatible with the operation.
To find the key state, use the [DescribeKey](API_DescribeKey.md) operation. For more information about which key states are compatible with each AWS KMS operation, see [Key states of AWS KMS keys](https://docs.aws.amazon.com/kms/latest/developerguide/key-state.html) in the * * AWS Key Management Service Developer Guide* *.
+ For cryptographic operations on KMS keys in custom key stores, this exception represents a general failure with many possible causes. To identify the cause, see the error message that accompanies the exception.
HTTP Status Code: 400
** NotFoundException **
The request was rejected because the specified entity or resource could not be found.
HTTP Status Code: 400
** UnsupportedOperationException **
The request was rejected because a specified parameter is not supported or a specified resource is not valid for this operation.
HTTP Status Code: 400
## Examples
### Example Request
The following example is formatted for legibility.
```
POST / HTTP/1.1
Host: kms.us-east-2.amazonaws.com
Content-Length: 48
X-Amz-Target: TrentService.EnableKeyRotation
X-Amz-Date: 20161107T221835Z
Content-Type: application/x-amz-json-1.1
Authorization: AWS4-HMAC-SHA256\
Credential=AKIAI44QH8DHBEXAMPLE/20161107/us-east-2/kms/aws4_request,\
SignedHeaders=content-type;host;x-amz-date;x-amz-target,\
Signature=4783e177036ca78627fe0cda9dcfdaf4ad7c8312d0e7c3d71d814b0c4cff1c0b
{
"KeyId": "1234abcd-12ab-34cd-56ef-1234567890ab",
"RotationPeriodInDays": 180
}
```
### Example Response
This example illustrates one usage of EnableKeyRotation.
```
HTTP/1.1 200 OK
Server: Server
Date: Mon, 07 Nov 2016 22:18:36 GMT
Content-Type: application/x-amz-json-1.1
Content-Length: 0
Connection: keep-alive
x-amzn-RequestId: 2077c3bf-a538-11e6-b6fb-794e83344f84
```
## See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following:
+ [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/kms-2014-11-01/EnableKeyRotation)
+ [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/kms-2014-11-01/EnableKeyRotation)
+ [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/kms-2014-11-01/EnableKeyRotation)
+ [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/kms-2014-11-01/EnableKeyRotation)
+ [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/kms-2014-11-01/EnableKeyRotation)
+ [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/kms-2014-11-01/EnableKeyRotation)
+ [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/kms-2014-11-01/EnableKeyRotation)
+ [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/kms-2014-11-01/EnableKeyRotation)
+ [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/kms-2014-11-01/EnableKeyRotation)
+ [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/kms-2014-11-01/EnableKeyRotation)