Magnetic Stripe Card

A magnetic stripe cardopen in new window is a type of card capable of storing data by modifying the magnetism of tiny iron-based magnetic particles on a band of magnetic material on the card.

Track 1

Example

B4000340099900505^John/Doe ^22251110000123000

SS	FC	PAN	FS	NAME	FS	Additional data	Discretionary data	ES	LRC
		Primary Acount Number (19 digits Max.)		Name (26 alphanumberic characters Max.)		Expiration date (YYMM) 4 Service code 3	PVKI 1 PVV or Offset 4 CVV or CVC 3

• SS Start Sentinel '%'

• FC Format Code

• FS Field Separator '^'

• ES End Sentinel '?'

• LRC Lohgitudinal Redundancy Check character

• PVKI PIN Verification Key Indicator

• PVV PIN Verification Value

• CVV Card Verification Value

• CVC Card Validation Code

Track 2

Example

4000340099900505=2225111123400001230

SS	PAN	FS	Additional data	Discretionary data	ES	LRC
	Primary Acount Number (19 digits Max.)		Expiration date (YYMM) 4 Service code 3	PVKI 1 PVV or Offset 4 CVV or CVC 3

• SS Start Sentinel Hex B ';'
• FS Field Separator Hex D '='
• ES End Sentinel '?'
• LRC Lohgitudinal Redundancy Check character

Code Exmaple

private fun getMagneticTrack(track: Bundle?): Boolean {
    try {
        val split_track1 = track!!.getString(MagData.TRACK1)!!.split("^")
        val track2CheckInterchangeDesignator = track.getString(MagData.TRACK2)!!.subSequence(21, 22)
        if (track2CheckInterchangeDesignator == "c2" && dataSetting!!.allow_insert_card) {
            hasEMVStartAgain!!.value = true
            description!!.value = "This card is support chip. Please Insert card/ Card pass or Swipe card again"
            return false
        } else {
            if (split_track1.size >= 3) {
                doProcess!!.value = true
                val name = if (split_track1[1].contains("/")) {
                    val split_name = split_track1[1].split("/")
                    split_name[1].replace(" ", "") + " " + split_name[0].replace("\\", "")
                } else {
                    split_track1[1].replace("\\s+".toRegex(), " ")
                }
                jsonData!!.put("name", name)
                jsonData.put("transaction_type", transactionType)
                jsonData.put("operation", "magnetic")
                jsonData.put("card_exp", track.getString(MagData.EXPIRED_DATE))
                jsonData.put("card_number", track.getString(MagData.PAN))
                jsonData.put("track1", split_track1[0] + "^" + name + "^" + split_track1[2])
                jsonData.put("track2", track.getString(MagData.TRACK2))
                return true
            } else {
                description!!.value = "Cannot find name on track1"
                hasError!!.value = true
                Log.d("TEST", "not found name")
                return false
            }
        }
    } catch (e: Exception) {
        Log.e("test aa3a", e.message.toString())
        description!!.value = "${e.message}"
        hasError!!.value = true
        return false
    }
}