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Decrypts ciphertext data to plaintext using a symmetric (TDES, AES), asymmetric (RSA), or derived (DUKPT or EMV) encryption key scheme. For more information, see Decrypt data in the Amazon Web Services Payment Cryptography User Guide.
You can use an decryption key generated within Amazon Web Services Payment Cryptography,
or you can import your own decryption key by calling ImportKey.
For this operation, the key must have KeyModesOfUse set to Decrypt.
In asymmetric decryption, Amazon Web Services Payment Cryptography decrypts the ciphertext
using the private component of the asymmetric encryption key pair. For data encryption
outside of Amazon Web Services Payment Cryptography, you can export the public component
of the asymmetric key pair by calling GetPublicCertificate.
This operation also supports dynamic keys, allowing you to pass a dynamic decryption
key as a TR-31 WrappedKeyBlock. This can be used when key material is frequently rotated,
such as during every card transaction, and there is need to avoid importing short-lived
keys into Amazon Web Services Payment Cryptography. To decrypt using dynamic keys,
the keyARN is the Key Encryption Key (KEK) of the TR-31 wrapped decryption
key material. The incoming wrapped key shall have a key purpose of D0 with a mode
of use of B or D. For more information, see Using
Dynamic Keys in the Amazon Web Services Payment Cryptography User Guide.
For symmetric and DUKPT decryption, Amazon Web Services Payment Cryptography supports
TDES and AES algorithms. For EMV decryption, Amazon Web Services Payment
Cryptography supports TDES algorithms. For asymmetric decryption, Amazon Web
Services Payment Cryptography supports RSA.
When you use TDES or TDES DUKPT, the ciphertext data length must be a multiple of 8 bytes. For AES or AES DUKPT, the ciphertext data length must be a multiple of 16 bytes. For RSA, it sould be equal to the key size unless padding is enabled.
For information about valid keys for this operation, see Understanding key attributes and Key types for specific data operations in the Amazon Web Services Payment Cryptography User Guide.
Cross-account use: This operation can't be used across different Amazon Web Services accounts.
Related operations:
This is an asynchronous operation using the standard naming convention for .NET 4.5 or higher. For .NET 3.5 the operation is implemented as a pair of methods using the standard naming convention of BeginDecryptData and EndDecryptData.
Namespace: Amazon.PaymentCryptographyData
Assembly: AWSSDK.PaymentCryptographyData.dll
Version: 3.x.y.z
public abstract Task<DecryptDataResponse> DecryptDataAsync( DecryptDataRequest request, CancellationToken cancellationToken )
Container for the necessary parameters to execute the DecryptData service method.
A cancellation token that can be used by other objects or threads to receive notice of cancellation.
| Exception | Condition |
|---|---|
| AccessDeniedException | You do not have sufficient access to perform this action. |
| InternalServerException | The request processing has failed because of an unknown error, exception, or failure. |
| ResourceNotFoundException | The request was denied due to an invalid resource error. |
| ThrottlingException | The request was denied due to request throttling. |
| ValidationException | The request was denied due to an invalid request error. |
.NET:
Supported in: 8.0 and newer, Core 3.1
.NET Standard:
Supported in: 2.0
.NET Framework:
Supported in: 4.5 and newer