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# DeleteExpiredKeyMaterial
<a name="ct-deleteexpiredkeymaterial"></a>

将密钥材料导入 AWS KMS key （KMS 密钥）时，可以为该密钥材料设置到期日期和时间。 AWS KMS 当您[导入密钥材料（使用过期设置）和 AWS KMS 删除过期的密钥材料](ct-importkeymaterial.md)时，会在 CloudTrail 日志中记录一个条目。有关创建带已导入密钥材料的 KMS 密钥的信息，请参阅 [导入密钥的 AWS KMS 密钥材料](importing-keys.md)。

以下示例显示了 AWS KMS 删除过期密钥材料时生成的 AWS CloudTrail 日志条目。

```
{
    "eventVersion": "1.11",
    "userIdentity": {
        "accountId": "111122223333",
        "invokedBy": "AWS Internal"
    },
    "eventTime": "2025-05-22T19:55:11Z",
    "eventSource": "kms.amazonaws.com",
    "eventName": "DeleteExpiredKeyMaterial",
    "awsRegion": "us-east-1",
    "sourceIPAddress": "AWS Internal",
    "userAgent": "AWS Internal",
    "requestParameters": null,
    "responseElements": null,
    "eventID": "cfa932fd-0d3a-4a76-a8b8-616863a2b547",
    "readOnly": false,
    "resources": [
        {
            "accountId": "111122223333",
            "type": "AWS::KMS::Key",
            "ARN": "arn:aws:kms:us-west-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab"
        }
    ],
    "eventType": "AwsServiceEvent",
    "recipientAccountId": "111122223333",
    "serviceEventDetails": {
        "keyId": "1234abcd-12ab-34cd-56ef-1234567890ab",
        "keyMaterialId": "123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0"
    },
    "eventCategory": "Management"
}
```