RFID CARD PASSWORD PROTECTION

Hey Jean,

There is no "Password Protection" for 15693, but there are ways to secure the tags.  

JEAN DUBUC said:

I'd like to protect against a writing on the same card.

You can lock the blocks after they have been written.  The prevents them from ever being updated, but they can still be read.

JEAN DUBUC said:

If somebody takes an memory image of the card, That person can pass without pay

I'm not sure how your system is setup, but possibly.  On ISO15693 tags, the UID is Fixed.  What several people do for security applications is hash the data.  You can use the UID + Secret Key to encrypt the data. If someone copies the data to a new 15693, the UID will be different, and the authentication will fail.  

This requires the reader side to know the Secret Key, probably by pinging a cloud server.  I'm not sure if this is a feature of your system or not.  

JEAN DUBUC said:

Am I using the right standard?

It really depends on your whole system.  In many systems, 15693 will work fine.  In more secure solutions, DESFIRE EV1 might be desired because it supports 3DES/AES encryption.

Thanks,

JD 

Thank you John !