Encryption methods for magnetic stripe cards

Encryption methods for magnetic stripe cards

    I remember magnetic stripe cards can't be encrypted, but through usOnly cards are madeYou can do it! So how do we do it?Magnetic stripe cardsEncrypted? Actually, what we call encryption is just preventing others from copying our magnetic stripe cards. In short, as long as no one can copy our magnetic stripe cards, that's a good encryption method. So how can we prevent others from copying our magnetic stripe cards?

1: The surface card number of the magnetic stripe card differs from the actual card number

    For example, if the card number on the magnetic stripe card is "123456", but when scanned by the magnetic stripe card reader, it shows "654321". The card number registered in the system is "654321", so entering the card number on the magnetic stripe card cannot be used to operate on that card. This encryption method requires professional card manufacturers to implement. However, this method is not safe enough.

2: Set the magnetic stripe card number in advance in the system

    Simply put, the system sets all the card numbers for all magnetic stripe cards; other card numbers cannot be recognized by the system. For example: If the current card number in the system is "654321", then if you enter other numbers, the system cannot recognize them. So, others can only copy your card but cannot know the information inside your card. Even if they know the card's information, if the card number is pre-set, even if you copy the same card, the system cannot recognize it.

In short, magnetic stripe cards themselves are very easy to copy. So how can we prevent our magnetic stripe cards from being duplicated? With the above methods, I believe the chance of complete copying is basically zero. In this way, the goal of encryption for magnetic stripe cards is achieved.