You can call this operation to update the description of a specified CMK.

The description of the CMK DescribeKey with the value passed in by the user. You can add, modify, or delete the description of a CMK through this operation.

Request parameters

Parameter Type Required or Not Description
KeyId String Yes The globally unique ID of the CMK.
Description String Yes The description of the CMK. It usually involves the purpose of the CMK, such as the data types to be protected by the CMK or the applications that can use the CMK.

Response parameters

Parameter Type Description
RequestId String The ID of the request.


Sample requests
&Description=<your key description>
&<Common request parameters>

Sample success responses

JSON format

//json response
    "RequestId": "475f1620-b9d3-4d35-b5c6-3fbdd941423d"

XML format

//xml response