TranslateKeyMaterial

Translates an cryptographic key between different wrapping keys without importing the key into AWS Payment Cryptography.

This operation can be used when key material is frequently rotated, such as during every card transaction, and there is a need to avoid importing short-lived keys into AWS Payment Cryptography. It translates short-lived transaction keys such as PEK generated for each transaction and wrapped with an ECDH derived wrapping key to another KEK wrapping key.

Before using this operation, you must first request the public key certificate of the ECC key pair generated within AWS Payment Cryptography to establish an ECDH key agreement. In TranslateKeyData, the service uses its own ECC key pair, public certificate of receiving ECC key pair, and the key derivation parameters to generate a derived key. The service uses this derived key to unwrap the incoming transaction key received as a TR31WrappedKeyBlock and re-wrap using a user provided KEK to generate an outgoing Tr31WrappedKeyBlock.

For information about valid keys for this operation, see Understanding key attributes and Key types for specific data operations in the AWS Payment Cryptography User Guide.

Cross-account use: This operation can't be used across different AWS accounts.

Related operations:

Request Syntax

POST /keymaterial/translate HTTP/1.1
Content-type: application/json

{
   "IncomingKeyMaterial": { ... },
   "KeyCheckValueAlgorithm": "string",
   "OutgoingKeyMaterial": { ... }
}

URI Request Parameters

The request does not use any URI parameters.

Request Body

The request accepts the following data in JSON format.

Response Syntax

HTTP/1.1 200
Content-type: application/json

{
   "WrappedKey": { 
      "KeyCheckValue": "string",
      "WrappedKeyMaterial": "string",
      "WrappedKeyMaterialFormat": "string"
   }
}

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

Errors

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: