paws.security.identity (version 0.1.5)

kms_update_alias: Associates an existing alias with a different customer master key (CMK)

Description

Associates an existing alias with a different customer master key (CMK). Each CMK can have multiple aliases, but the aliases must be unique within the account and region. You cannot perform this operation on an alias in a different AWS account.

Usage

kms_update_alias(AliasName, TargetKeyId)

Arguments

AliasName

[required] Specifies the name of the alias to change. This value must begin with alias/ followed by the alias name, such as alias/ExampleAlias.

TargetKeyId

[required] Unique identifier of the customer master key (CMK) to be mapped to the alias. When the update operation completes, the alias will point to this CMK.

Specify the key ID or the Amazon Resource Name (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.

To verify that the alias is mapped to the correct CMK, use ListAliases.

Request syntax

svc$update_alias(
  AliasName = "string",
  TargetKeyId = "string"
)

Details

This operation works only on existing aliases. To change the alias of a CMK to a new value, use CreateAlias to create a new alias and DeleteAlias to delete the old alias.

Because an alias is not a property of a CMK, you can create, update, and delete the aliases of a CMK without affecting the CMK. Also, aliases do not appear in the response from the DescribeKey operation. To get the aliases of all CMKs in the account, use the ListAliases operation.

The alias name must begin with alias/ followed by a name, such as alias/ExampleAlias. It can contain only alphanumeric characters, forward slashes (/), underscores (\_), and dashes (-). The alias name cannot begin with alias/aws/. The alias/aws/ prefix is reserved for AWS managed CMKs.

The result of this operation varies with the key state of the CMK. For details, see How Key State Affects Use of a Customer Master Key in the AWS Key Management Service Developer Guide.

Examples

# NOT RUN {
# The following example updates the specified alias to refer to the
# specified customer master key (CMK).
# }
# NOT RUN {
svc$update_alias(
  AliasName = "alias/ExampleAlias",
  TargetKeyId = "1234abcd-12ab-34cd-56ef-1234567890ab"
)
# }
# NOT RUN {
# }