public String getKeyIdentifier() {
        return this.keyIdentifier;
    }
<p>
The <code>keyARN</code> of the encryption key that Amazon Web Services Payment Cryptography uses to verify MAC
data.
</p>

@return The <code>keyARN</code> of the encryption key that Amazon Web Services Payment Cryptography uses to
        verify MAC data.
aws-java-sdk-paymentcryptographydata/src/main/java/com/amazonaws/services/paymentcryptographydata/model/VerifyMacRequest.java