# MacAlgorithmEmv
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Parameters that are required for EMV MAC generation and verification.

## Contents
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 ** MajorKeyDerivationMode **   <a name="paymentcryptographydata-Type-MacAlgorithmEmv-MajorKeyDerivationMode"></a>
The method to use when deriving the master key for EMV MAC generation or verification.  
Type: String  
Valid Values: `EMV_OPTION_A | EMV_OPTION_B`   
Required: Yes

 ** PanSequenceNumber **   <a name="paymentcryptographydata-Type-MacAlgorithmEmv-PanSequenceNumber"></a>
A number that identifies and differentiates payment cards with the same Primary Account Number (PAN).  
Type: String  
Length Constraints: Fixed length of 2.  
Pattern: `[0-9]+`   
Required: Yes

 ** PrimaryAccountNumber **   <a name="paymentcryptographydata-Type-MacAlgorithmEmv-PrimaryAccountNumber"></a>
The Primary Account Number (PAN), a unique identifier for a payment credit or debit card and associates the card to a specific account holder.  
Type: String  
Length Constraints: Minimum length of 12. Maximum length of 19.  
Pattern: `[0-9]+`   
Required: Yes

 ** SessionKeyDerivationMode **   <a name="paymentcryptographydata-Type-MacAlgorithmEmv-SessionKeyDerivationMode"></a>
The method of deriving a session key for EMV MAC generation or verification.  
Type: String  
Valid Values: `EMV_COMMON_SESSION_KEY | EMV2000 | AMEX | MASTERCARD_SESSION_KEY | VISA`   
Required: Yes

 ** SessionKeyDerivationValue **   <a name="paymentcryptographydata-Type-MacAlgorithmEmv-SessionKeyDerivationValue"></a>
Parameters that are required to generate session key for EMV generation and verification.  
Type: [SessionKeyDerivationValue](API_SessionKeyDerivationValue.md) object  
 **Note: **This object is a Union. Only one member of this object can be specified or returned.  
Required: Yes

## See Also
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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/MacAlgorithmEmv) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/payment-cryptography-data-2022-02-03/MacAlgorithmEmv) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/payment-cryptography-data-2022-02-03/MacAlgorithmEmv)