Package com.gemalto.mfs.mwsdk.mobilegateway.utils

Class MGCardInfoEncryptor

  • public class MGCardInfoEncryptor
extends java.lang.Object
    A utility class to encrypt the Contactless Card Information using the public key embedded in the MG SDK.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static byte[] encrypt​(byte[] key, byte[] identifier, byte[] pan, byte[] expiry, byte[] cvv2)
      A utility method to encrypt the contactless card details (PAN, exp and cvv) using the TSH public key in PKCS#7 format.
      static byte[] encryptCardInfo​(byte[] publicKey, byte[] subjectKeyIdentifier, byte[] pan, byte[] expiry, byte[] cvv2)  
      static byte[] encryptCardInfo​(byte[] publicKey, byte[] subjectKeyIdentifier, byte[] pan, byte[] expiry, byte[] cvv2, byte[] nonce)  
      static byte[] encryptPKCS7​(byte[] subjectKeyIdentifier, byte[] publicKeyBytes, byte[] plainData)  
      static byte[] parseHex​(java.lang.String hexString)
      A utility method to convert a hexadecimal string to byte array representation

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • MGCardInfoEncryptor

        public MGCardInfoEncryptor()

    • Method Detail

      • encrypt

        public static byte[] encrypt​(byte[] key,
                             byte[] identifier,
                             byte[] pan,
                             byte[] expiry,
                             byte[] cvv2)
        A utility method to encrypt the contactless card details (PAN, exp and cvv) using the TSH public key in PKCS#7 format.
        Parameters:
        key - key to use for encryption. (usually TSH public key)
        identifier - subject key identifier used during encryption
        pan - the Card Primary Account Number.
        expiry - the Card expiry date with format "MMYY"
        cvv2 - the Card CVV (3 or 4 digit)
        Returns:
        the encrypted card info
        Throws:
        java.lang.RuntimeException - an exception will be thrown in case of an error

      • parseHex

        public static byte[] parseHex​(java.lang.String hexString)
        A utility method to convert a hexadecimal string to byte array representation
        Parameters:
        hexString -
        Returns:

      • encryptCardInfo

        public static byte[] encryptCardInfo​(byte[] publicKey,
                                     byte[] subjectKeyIdentifier,
                                     byte[] pan,
                                     byte[] expiry,
                                     byte[] cvv2)

      • encryptCardInfo

        public static byte[] encryptCardInfo​(byte[] publicKey,
                                     byte[] subjectKeyIdentifier,
                                     byte[] pan,
                                     byte[] expiry,
                                     byte[] cvv2,
                                     byte[] nonce)

      • encryptPKCS7

        public static byte[] encryptPKCS7​(byte[] subjectKeyIdentifier,
                                  byte[] publicKeyBytes,
                                  byte[] plainData)
                           throws org.bouncycastle.cms.CMSException,
                                  java.io.IOException
        Throws:
        org.bouncycastle.cms.CMSException
        java.io.IOException