PaymentCryptographyControlPlane / Client / delete_key

delete_key

PaymentCryptographyControlPlane.Client.delete_key(**kwargs)

Deletes the key material and metadata associated with Amazon Web Services Payment Cryptography key.

Key deletion is irreversible. After a key is deleted, you can’t perform cryptographic operations using the key. For example, you can’t decrypt data that was encrypted by a deleted Amazon Web Services Payment Cryptography key, and the data may become unrecoverable. Because key deletion is destructive, Amazon Web Services Payment Cryptography has a safety mechanism to prevent accidental deletion of a key. When you call this operation, Amazon Web Services Payment Cryptography disables the specified key but doesn’t delete it until after a waiting period set using DeleteKeyInDays. The default waiting period is 7 days. During the waiting period, the KeyState is DELETE_PENDING. After the key is deleted, the KeyState is DELETE_COMPLETE.

You should delete a key only when you are sure that you don’t need to use it anymore and no other parties are utilizing this key. If you aren’t sure, consider deactivating it instead by calling StopKeyUsage.

Cross-account use: This operation can’t be used across different Amazon Web Services accounts.

Related operations:

• RestoreKey

• StartKeyUsage

• StopKeyUsage

See also: AWS API Documentation

Request Syntax

response = client.delete_key(
    DeleteKeyInDays=123,
    KeyIdentifier='string'
)

Parameters:

• DeleteKeyInDays (integer) – The waiting period for key deletion. The default value is seven days.

• KeyIdentifier (string) –

  [REQUIRED]

  The KeyARN of the key that is scheduled for deletion.

Return type:

dict

Returns:

Response Syntax

{
    'Key': {
        'CreateTimestamp': datetime(2015, 1, 1),
        'DeletePendingTimestamp': datetime(2015, 1, 1),
        'DeleteTimestamp': datetime(2015, 1, 1),
        'Enabled': True|False,
        'Exportable': True|False,
        'KeyArn': 'string',
        'KeyAttributes': {
            'KeyAlgorithm': 'TDES_2KEY'|'TDES_3KEY'|'AES_128'|'AES_192'|'AES_256'|'RSA_2048'|'RSA_3072'|'RSA_4096',
            'KeyClass': 'SYMMETRIC_KEY'|'ASYMMETRIC_KEY_PAIR'|'PRIVATE_KEY'|'PUBLIC_KEY',
            'KeyModesOfUse': {
                'Decrypt': True|False,
                'DeriveKey': True|False,
                'Encrypt': True|False,
                'Generate': True|False,
                'NoRestrictions': True|False,
                'Sign': True|False,
                'Unwrap': True|False,
                'Verify': True|False,
                'Wrap': True|False
            },
            'KeyUsage': 'TR31_B0_BASE_DERIVATION_KEY'|'TR31_C0_CARD_VERIFICATION_KEY'|'TR31_D0_SYMMETRIC_DATA_ENCRYPTION_KEY'|'TR31_D1_ASYMMETRIC_KEY_FOR_DATA_ENCRYPTION'|'TR31_E0_EMV_MKEY_APP_CRYPTOGRAMS'|'TR31_E1_EMV_MKEY_CONFIDENTIALITY'|'TR31_E2_EMV_MKEY_INTEGRITY'|'TR31_E4_EMV_MKEY_DYNAMIC_NUMBERS'|'TR31_E5_EMV_MKEY_CARD_PERSONALIZATION'|'TR31_E6_EMV_MKEY_OTHER'|'TR31_K0_KEY_ENCRYPTION_KEY'|'TR31_K1_KEY_BLOCK_PROTECTION_KEY'|'TR31_K3_ASYMMETRIC_KEY_FOR_KEY_AGREEMENT'|'TR31_M3_ISO_9797_3_MAC_KEY'|'TR31_M1_ISO_9797_1_MAC_KEY'|'TR31_M6_ISO_9797_5_CMAC_KEY'|'TR31_M7_HMAC_KEY'|'TR31_P0_PIN_ENCRYPTION_KEY'|'TR31_P1_PIN_GENERATION_KEY'|'TR31_S0_ASYMMETRIC_KEY_FOR_DIGITAL_SIGNATURE'|'TR31_V1_IBM3624_PIN_VERIFICATION_KEY'|'TR31_V2_VISA_PIN_VERIFICATION_KEY'|'TR31_K2_TR34_ASYMMETRIC_KEY'
        },
        'KeyCheckValue': 'string',
        'KeyCheckValueAlgorithm': 'CMAC'|'ANSI_X9_24',
        'KeyOrigin': 'EXTERNAL'|'AWS_PAYMENT_CRYPTOGRAPHY',
        'KeyState': 'CREATE_IN_PROGRESS'|'CREATE_COMPLETE'|'DELETE_PENDING'|'DELETE_COMPLETE',
        'UsageStartTimestamp': datetime(2015, 1, 1),
        'UsageStopTimestamp': datetime(2015, 1, 1)
    }
}

Response Structure

• (dict) –

  • Key (dict) –

    The KeyARN of the key that is scheduled for deletion.

    • CreateTimestamp (datetime) –

      The date and time when the key was created.

    • DeletePendingTimestamp (datetime) –

      The date and time after which Amazon Web Services Payment Cryptography will delete the key. This value is present only when KeyState is DELETE_PENDING and the key is scheduled for deletion.

    • DeleteTimestamp (datetime) –

      The date and time after which Amazon Web Services Payment Cryptography will delete the key. This value is present only when when the KeyState is DELETE_COMPLETE and the Amazon Web Services Payment Cryptography key is deleted.

    • Enabled (boolean) –

      Specifies whether the key is enabled.

    • Exportable (boolean) –

      Specifies whether the key is exportable. This data is immutable after the key is created.

    • KeyArn (string) –

      The Amazon Resource Name (ARN) of the key.

    • KeyAttributes (dict) –

      The role of the key, the algorithm it supports, and the cryptographic operations allowed with the key. This data is immutable after the key is created.

      • KeyAlgorithm (string) –

        The key algorithm to be use during creation of an Amazon Web Services Payment Cryptography key.

        For symmetric keys, Amazon Web Services Payment Cryptography supports AES and TDES algorithms. For asymmetric keys, Amazon Web Services Payment Cryptography supports RSA and ECC_NIST algorithms.

      • KeyClass (string) –

        The type of Amazon Web Services Payment Cryptography key to create, which determines the classification of the cryptographic method and whether Amazon Web Services Payment Cryptography key contains a symmetric key or an asymmetric key pair.

      • KeyModesOfUse (dict) –

        The list of cryptographic operations that you can perform using the key.

        • Decrypt (boolean) –

          Specifies whether an Amazon Web Services Payment Cryptography key can be used to decrypt data.

        • DeriveKey (boolean) –

          Specifies whether an Amazon Web Services Payment Cryptography key can be used to derive new keys.

        • Encrypt (boolean) –

          Specifies whether an Amazon Web Services Payment Cryptography key can be used to encrypt data.

        • Generate (boolean) –

          Specifies whether an Amazon Web Services Payment Cryptography key can be used to generate and verify other card and PIN verification keys.

        • NoRestrictions (boolean) –

          Specifies whether an Amazon Web Services Payment Cryptography key has no special restrictions other than the restrictions implied by KeyUsage.

        • Sign (boolean) –

          Specifies whether an Amazon Web Services Payment Cryptography key can be used for signing.

        • Unwrap (boolean) –

          Specifies whether an Amazon Web Services Payment Cryptography key can be used to unwrap other keys.

        • Verify (boolean) –

          Specifies whether an Amazon Web Services Payment Cryptography key can be used to verify signatures.

        • Wrap (boolean) –

          Specifies whether an Amazon Web Services Payment Cryptography key can be used to wrap other keys.

      • KeyUsage (string) –

        The cryptographic usage of an Amazon Web Services Payment Cryptography key as defined in section A.5.2 of the TR-31 spec.

    • KeyCheckValue (string) –

      The key check value (KCV) is used to check if all parties holding a given key have the same key or to detect that a key has changed.

    • KeyCheckValueAlgorithm (string) –

      The algorithm that Amazon Web Services Payment Cryptography uses to calculate the key check value (KCV). It is used to validate the key integrity.

      For TDES keys, the KCV is computed by encrypting 8 bytes, each with value of zero, with the key to be checked and retaining the 3 highest order bytes of the encrypted result. For AES keys, the KCV is computed using a CMAC algorithm where the input data is 16 bytes of zero and retaining the 3 highest order bytes of the encrypted result.

    • KeyOrigin (string) –

      The source of the key material. For keys created within Amazon Web Services Payment Cryptography, the value is AWS_PAYMENT_CRYPTOGRAPHY. For keys imported into Amazon Web Services Payment Cryptography, the value is EXTERNAL.

    • KeyState (string) –

      The state of key that is being created or deleted.

    • UsageStartTimestamp (datetime) –

      The date and time after which Amazon Web Services Payment Cryptography will start using the key material for cryptographic operations.

    • UsageStopTimestamp (datetime) –

      The date and time after which Amazon Web Services Payment Cryptography will stop using the key material for cryptographic operations.

Exceptions

• PaymentCryptographyControlPlane.Client.exceptions.ServiceUnavailableException

• PaymentCryptographyControlPlane.Client.exceptions.ValidationException

• PaymentCryptographyControlPlane.Client.exceptions.ConflictException

• PaymentCryptographyControlPlane.Client.exceptions.AccessDeniedException

• PaymentCryptographyControlPlane.Client.exceptions.ResourceNotFoundException

• PaymentCryptographyControlPlane.Client.exceptions.ThrottlingException

• PaymentCryptographyControlPlane.Client.exceptions.InternalServerException