Last week, I tried to register for a service and was really surprised by a password limit of 16 characters. Why on earth yould you impose such strict limits? Never heard of correct horse battery staple?

  • SkunkWorkz@lemmy.world
    2·
    29 days ago

    Even if you could you can’t recover the PIN from it. Since it’s not stored on the card, the chip checks the entered PIN against a secret key with cryptographic calculations if it is correct. But you can’t get the PIN from that secret key. Also if I remember correctly the chip will self destruct, as in wipes it’s data, when it detects that it’s being tampered with.