# OutgoingKeyMaterial


Parameter information of the outgoing TR31WrappedKeyBlock containing the transaction key.

## Contents


**Important**  
This data type is a UNION, so only one of the following members can be specified when used or returned.

 ** Tr31KeyBlock **   <a name="paymentcryptographydata-Type-OutgoingKeyMaterial-Tr31KeyBlock"></a>
Parameter information of the TR31WrappedKeyBlock containing the transaction key wrapped using a KEK.  
Type: [OutgoingTr31KeyBlock](API_OutgoingTr31KeyBlock.md) object  
Required: No

## See Also


For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/payment-cryptography-data-2022-02-03/OutgoingKeyMaterial) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/payment-cryptography-data-2022-02-03/OutgoingKeyMaterial) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/payment-cryptography-data-2022-02-03/OutgoingKeyMaterial)