import-key-material¶

Description¶

Imports key material into an existing symmetric KMS KMS key that was created without key material. After you successfully import key material into a KMS key, you can reimport the same key material into that KMS key, but you cannot import different key material.

You cannot perform this operation on an asymmetric KMS key or on any KMS key in a different Amazon Web Services account. For more information about creating KMS keys with no key material and then importing key material, see Importing Key Material in the Key Management Service Developer Guide .

Before using this operation, call GetParametersForImport . Its response includes a public key and an import token. Use the public key to encrypt the key material. Then, submit the import token from the same GetParametersForImport response.

When calling this operation, you must specify the following values:

The key ID or key ARN of a KMS key with no key material. Its Origin must be EXTERNAL . To create a KMS key with no key material, call CreateKey and set the value of its Origin parameter to EXTERNAL . To get the Origin of a KMS key, call DescribeKey .)
The encrypted key material. To get the public key to encrypt the key material, call GetParametersForImport .
The import token that GetParametersForImport returned. You must use a public key and token from the same GetParametersForImport response.
Whether the key material expires and if so, when. If you set an expiration date, KMS deletes the key material from the KMS key on the specified date, and the KMS key becomes unusable. To use the KMS key again, you must reimport the same key material. The only way to change an expiration date is by reimporting the same key material and specifying a new expiration date.

When this operation is successful, the key state of the KMS key changes from PendingImport to Enabled , and you can use the KMS key.

If this operation fails, use the exception to help determine the problem. If the error is related to the key material, the import token, or wrapping key, use GetParametersForImport to get a new public key and import token for the KMS key and repeat the import procedure. For help, see How To Import Key Material in the Key Management Service Developer Guide .

The KMS key that you use for this operation must be in a compatible key state. For details, see Key state: Effect on your KMS key in the Key Management Service Developer Guide .

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

Required permissions : kms:ImportKeyMaterial (key policy)

Related operations:

DeleteImportedKeyMaterial
GetParametersForImport

Synopsis¶

  import-key-material
--key-id <value>
--import-token <value>
--encrypted-key-material <value>
[--valid-to <value>]
[--expiration-model <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options¶

--key-id (string)

The identifier of the symmetric KMS key that receives the imported key material. The KMS key’s Origin must be EXTERNAL . This must be the same KMS key specified in the KeyID parameter of the corresponding GetParametersForImport request.

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 or DescribeKey .

--import-token (blob)

The import token that you received in the response to a previous GetParametersForImport request. It must be from the same response that contained the public key that you used to encrypt the key material.

--encrypted-key-material (blob)

The encrypted key material to import. The key material must be encrypted with the public wrapping key that GetParametersForImport returned, using the wrapping algorithm that you specified in the same GetParametersForImport request.

--valid-to (timestamp)

The time at which the imported key material expires. When the key material expires, KMS deletes the key material and the KMS key becomes unusable. You must omit this parameter when the ExpirationModel parameter is set to KEY_MATERIAL_DOES_NOT_EXPIRE . Otherwise it is required.

--expiration-model (string)

Specifies whether the key material expires. The default is KEY_MATERIAL_EXPIRES , in which case you must include the ValidTo parameter. When this parameter is set to KEY_MATERIAL_DOES_NOT_EXPIRE , you must omit the ValidTo parameter.

Possible values:

KEY_MATERIAL_EXPIRES

KEY_MATERIAL_DOES_NOT_EXPIRE

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those 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. This may not be specified along with --cli-input-yaml.

--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. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. 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.

Examples¶

To import key material into a KMS customer master key

The following import-key-material example uploads key material into a CMK that was created with no key material. The key state of the CMK must be PendingImport.

This command uses key material that you encrypted with the public key that the get-parameters-for-import command returned. It also uses the import token from the same get-parameters-for-import command.

The expiration-model parameter indicates that the key material automatically expires on the date and time specified by the valid-to parameter. When the key material expires, AWS KMS deletes the key material, the key state of the CMK changes to Pending import and the CMK becomes unusable. To restore the CMK, you must reimport the same key material. To use different key material, you must create a new CMK.

Before running this command, replace the example key ID with a valid key ID or key ARN from your AWS account.

aws kms import-key-material \
    --key-id 1234abcd-12ab-34cd-56ef-1234567890ab \
    --encrypted-key-material fileb://EncryptedKeyMaterial.bin \
    --import-token fileb://ImportToken.bin \
    --expiration-model KEY_MATERIAL_EXPIRES \
    --valid-to 2021-09-21T19:00:00Z

This command produces no output.

For more information about importing key material, see Importing Key Material in the AWS Key Management Service Developer Guide.

Output¶

None

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