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[ aws . kms ]



Disconnects the custom key store from its associated CloudHSM cluster. While a custom key store is disconnected, you can manage the custom key store and its KMS keys, but you cannot create or use KMS keys in the custom key store. You can reconnect the custom key store at any time.


While a custom key store is disconnected, all attempts to create KMS keys in the custom key store or to use existing KMS keys in cryptographic operations will fail. This action can prevent users from storing and accessing sensitive data.

To find the connection state of a custom key store, use the DescribeCustomKeyStores operation. To reconnect a custom key store, use the ConnectCustomKeyStore operation.

If the operation succeeds, it returns a JSON object with no properties.

This operation is part of the Custom Key Store feature feature in KMS, which combines the convenience and extensive integration of KMS with the isolation and control of a single-tenant key store.

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

Required permissions : kms:DisconnectCustomKeyStore (IAM policy)

Related operations:

  • ConnectCustomKeyStore
  • CreateCustomKeyStore
  • DeleteCustomKeyStore
  • DescribeCustomKeyStores
  • UpdateCustomKeyStore

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.


--custom-key-store-id <value>
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--custom-key-store-id (string)

Enter the ID of the custom key store you want to disconnect. To find the ID of a custom key store, use the DescribeCustomKeyStores operation.

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.


To disconnect a custom key store

The following disconnect-custom-key-store example disconnects a custom key store from its AWS CloudHSM cluster. You might disconnect a key store to troubleshoot a problem, to update its settings, or to prevent CMKs in the keystore from being used in cryptographic operations.

Before running this command, replace the example custom key store ID with a valid one.

$ aws kms disconnect-custom-key-store \
    --custom-key-store-id cks-1234567890abcdef0

This command produces no output. verify that the command was effective, use the describe-custom-key-stores command.

For more information, see Connecting and Disconnecting a Custom Key Store in the AWS Key Management Service Developer Guide.