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POST /#X-Amz-Target=TrentService.GetParametersForImport

Returns the items you need to import key material into a symmetric encryption KMS key. For more information about importing key material into KMS, see Importing key material in the Key Management Service Developer Guide.

This operation returns a public key and an import token. Use the public key to encrypt the symmetric key material. Store the import token to send with a subsequent ImportKeyMaterial request.

You must specify the key ID of the symmetric encryption KMS key into which you will import key material. The KMS key Origin must be EXTERNAL. You must also specify the wrapping algorithm and type of wrapping key (public key) that you will use to encrypt the key material. You cannot perform this operation on an asymmetric KMS key, an HMAC KMS key, or on any KMS key in a different Amazon Web Services account.

To import key material, you must use the public key and import token from the same response. These items are valid for 24 hours. The expiration date and time appear in the GetParametersForImport response. You cannot use an expired token in an ImportKeyMaterial request. If your key and token expire, send another GetParametersForImport request.

The KMS key that you use for this operation must be in a compatible key state. For details, see Key states of KMS keys 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:GetParametersForImport (key policy)

Related operations:

Servers

Request headers

Name Type Required Description
X-Amz-Content-Sha256 String No
X-Amz-Credential String No
X-Amz-Target String Yes

Valid values:

  • "TrentService.GetParametersForImport"
Content-Type String Yes The media type of the request body.

Default value: "application/json"
X-Amz-Date String No
X-Amz-Algorithm String No
X-Amz-SignedHeaders String No
X-Amz-Security-Token String No
X-Amz-Signature String No

Request body fields

Name Type Required Description
WrappingAlgorithm String Yes

The algorithm you will use to encrypt the key material before using the ImportKeyMaterial operation to import it. For more information, see Encrypt the key material in the Key Management Service Developer Guide.

The RSAES_PKCS1_V1_5 wrapping algorithm is deprecated. We recommend that you begin using a different wrapping algorithm immediately. KMS will end support for RSAES_PKCS1_V1_5 by October 1, 2023 pursuant to cryptographic key management guidance from the National Institute of Standards and Technology (NIST).

Valid values:

  • "RSAES_PKCS1_V1_5"
  • "RSAES_OAEP_SHA_256"
  • "RSAES_OAEP_SHA_1"
WrappingKeySpec String Yes

The type of wrapping key (public key) to return in the response. Only 2048-bit RSA public keys are supported.

Valid values:

  • "RSA_2048"
KeyId String Yes

The identifier of the symmetric encryption KMS key into which you will import key material. The Origin of the KMS key must be EXTERNAL.

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.

How to start integrating

  1. Add HTTP Task to your workflow definition.
  2. Search for the API you want to integrate with and click on the name.
    • This loads the API reference documentation and prepares the Http request settings.
  3. Click Test request to test run your request to the API and see the API's response.
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